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go/src/cmd/internal/obj/mips/obj0.go

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cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
// cmd/9l/noop.c, cmd/9l/pass.c, cmd/9l/span.c from Vita Nuova.
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
all: make copyright headers consistent with one space after period Follows suit with https://go-review.googlesource.com/#/c/20111. Generated by running $ grep -R 'Go Authors. All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go Authors. All/Go Authors. All/g' $F;done The code in cmd/internal/unvendor wasn't changed. Fixes #15213 Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f Reviewed-on: https://go-review.googlesource.com/21819 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-10 14:32:26 -07:00
// Portions Copyright © 2009 The Go Authors. All rights reserved.
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
package mips
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
import (
"cmd/internal/obj"
cmd/internal/objabi: extract shared functionality from obj Now only cmd/asm and cmd/compile depend on cmd/internal/obj. Changing the assembler backends no longer requires reinstalling cmd/link or cmd/addr2line. There's also now one canonical definition of the object file format in cmd/internal/objabi/doc.go, with a warning to update all three implementations. objabi is still something of a grab bag of unrelated code (e.g., flag and environment variable handling probably belong in a separate "tool" package), but this is still progress. Fixes #15165. Fixes #20026. Change-Id: Ic4b92fac7d0d35438e0d20c9579aad4085c5534c Reviewed-on: https://go-review.googlesource.com/40972 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-04-18 12:53:25 -07:00
"cmd/internal/objabi"
cmd: add new common architecture representation Information about CPU architectures (e.g., name, family, byte ordering, pointer and register size) is currently redundantly scattered around the source tree. Instead consolidate the basic information into a single new package cmd/internal/sys. Also, introduce new sys.I386, sys.AMD64, etc. names for the constants '8', '6', etc. and replace most uses of the latter. The notable exceptions are a couple of error messages that still refer to the old char-based toolchain names and function reltype in cmd/link. Passes toolstash/buildall. Change-Id: I8a6f0cbd49577ec1672a98addebc45f767e36461 Reviewed-on: https://go-review.googlesource.com/21623 Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-06 12:01:40 -07:00
"cmd/internal/sys"
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
"encoding/binary"
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
"fmt"
cmd/asm, cmd/link, runtime: introduce FuncInfo flag bits The runtime traceback code has its own definition of which functions mark the top frame of a stack, separate from the TOPFRAME bits that exist in the assembly and are passed along in DWARF information. It's error-prone and redundant to have two different sources of truth. This CL provides the actual TOPFRAME bits to the runtime, so that the runtime can use those bits instead of reinventing its own category. This CL also adds a new bit, SPWRITE, which marks functions that write directly to SP (anything but adding and subtracting constants). Such functions must stop a traceback, because the traceback has no way to rederive the SP on entry. Again, the runtime has its own definition which is mostly correct, but also missing some functions. During ordinary goroutine context switches, such functions do not appear on the stack, so the incompleteness in the runtime usually doesn't matter. But profiling signals can arrive at any moment, and the runtime may crash during traceback if it attempts to unwind an SP-writing frame and gets out-of-sync with the actual stack. The runtime contains code to try to detect likely candidates but again it is incomplete. Deriving the SPWRITE bit automatically from the actual assembly code provides the complete truth, and passing it to the runtime lets the runtime use it. This CL is part of a stack adding windows/arm64 support (#36439), intended to land in the Go 1.17 cycle. This CL is, however, not windows/arm64-specific. It is cleanup meant to make the port (and future ports) easier. Change-Id: I227f53b23ac5b3dabfcc5e8ee3f00df4e113cf58 Reviewed-on: https://go-review.googlesource.com/c/go/+/288800 Trust: Russ Cox <rsc@golang.org> Trust: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-28 15:21:33 -05:00
"log"
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
"math"
)
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c := ctxt0{ctxt: ctxt, newprog: newprog}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Class = 0
p.To.Class = 0
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// Rewrite JMP/JAL to symbol as TYPE_BRANCH.
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
switch p.As {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case AJMP,
AJAL,
ARET,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
obj.ADUFFZERO,
obj.ADUFFCOPY:
if p.To.Sym != nil {
p.To.Type = obj.TYPE_BRANCH
}
}
// Rewrite float constants to values stored in memory.
switch p.As {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case AMOVF:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_FCONST {
f32 := float32(p.From.Val.(float64))
cmd/internal/obj: unify creation of numeric literal syms This is a straightforward refactoring, to reduce the scope of upcoming changes. The symbol size and AttrLocal=true was not set universally, but it appears not to matter, since toolstash -cmp is happy. Passes toolstash-check -all. Change-Id: I7f8392f939592d3a1bc6f61dec992f5661f42fca Reviewed-on: https://go-review.googlesource.com/39791 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-06 10:29:29 -07:00
if math.Float32bits(f32) == 0 {
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.As = AMOVW
cmd/internal/obj/mips: materialize float constant 0 from zero register Materialize float constant 0 from integer zero register, instead of loading from constant pool. Change-Id: Ie4728895b9d617bec2a29d15729c0efaa10eedbb Reviewed-on: https://go-review.googlesource.com/32109 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
2016-10-27 17:52:53 -04:00
p.From.Type = obj.TYPE_REG
p.From.Reg = REGZERO
break
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_MEM
cmd/internal/obj: unify creation of numeric literal syms This is a straightforward refactoring, to reduce the scope of upcoming changes. The symbol size and AttrLocal=true was not set universally, but it appears not to matter, since toolstash -cmp is happy. Passes toolstash-check -all. Change-Id: I7f8392f939592d3a1bc6f61dec992f5661f42fca Reviewed-on: https://go-review.googlesource.com/39791 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-06 10:29:29 -07:00
p.From.Sym = ctxt.Float32Sym(f32)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Name = obj.NAME_EXTERN
p.From.Offset = 0
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case AMOVD:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_FCONST {
cmd/internal/obj: unify creation of numeric literal syms This is a straightforward refactoring, to reduce the scope of upcoming changes. The symbol size and AttrLocal=true was not set universally, but it appears not to matter, since toolstash -cmp is happy. Passes toolstash-check -all. Change-Id: I7f8392f939592d3a1bc6f61dec992f5661f42fca Reviewed-on: https://go-review.googlesource.com/39791 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-06 10:29:29 -07:00
f64 := p.From.Val.(float64)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if math.Float64bits(f64) == 0 && c.ctxt.Arch.Family == sys.MIPS64 {
cmd/internal/obj/mips: materialize float constant 0 from zero register Materialize float constant 0 from integer zero register, instead of loading from constant pool. Change-Id: Ie4728895b9d617bec2a29d15729c0efaa10eedbb Reviewed-on: https://go-review.googlesource.com/32109 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
2016-10-27 17:52:53 -04:00
p.As = AMOVV
p.From.Type = obj.TYPE_REG
p.From.Reg = REGZERO
break
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_MEM
cmd/internal/obj: unify creation of numeric literal syms This is a straightforward refactoring, to reduce the scope of upcoming changes. The symbol size and AttrLocal=true was not set universally, but it appears not to matter, since toolstash -cmp is happy. Passes toolstash-check -all. Change-Id: I7f8392f939592d3a1bc6f61dec992f5661f42fca Reviewed-on: https://go-review.googlesource.com/39791 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-06 10:29:29 -07:00
p.From.Sym = ctxt.Float64Sym(f64)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Name = obj.NAME_EXTERN
p.From.Offset = 0
}
// Put >32-bit constants in memory and load them
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case AMOVV:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_CONST && p.From.Name == obj.NAME_NONE && p.From.Reg == 0 && int64(int32(p.From.Offset)) != p.From.Offset {
p.From.Type = obj.TYPE_MEM
cmd/internal/obj: unify creation of numeric literal syms This is a straightforward refactoring, to reduce the scope of upcoming changes. The symbol size and AttrLocal=true was not set universally, but it appears not to matter, since toolstash -cmp is happy. Passes toolstash-check -all. Change-Id: I7f8392f939592d3a1bc6f61dec992f5661f42fca Reviewed-on: https://go-review.googlesource.com/39791 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-06 10:29:29 -07:00
p.From.Sym = ctxt.Int64Sym(p.From.Offset)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Name = obj.NAME_EXTERN
p.From.Offset = 0
}
}
// Rewrite SUB constants into ADD.
switch p.As {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ASUB:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_CONST {
p.From.Offset = -p.From.Offset
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = AADD
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ASUBU:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_CONST {
p.From.Offset = -p.From.Offset
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = AADDU
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ASUBV:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_CONST {
p.From.Offset = -p.From.Offset
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = AADDV
}
case ASUBVU:
if p.From.Type == obj.TYPE_CONST {
p.From.Offset = -p.From.Offset
p.As = AADDVU
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
}
}
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
// TODO(minux): add morestack short-cuts with small fixed frame-size.
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c := ctxt0{ctxt: ctxt, newprog: newprog, cursym: cursym}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// a switch for enabling/disabling instruction scheduling
nosched := true
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
if c.cursym.Func().Text == nil || c.cursym.Func().Text.Link == nil {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
return
}
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
p := c.cursym.Func().Text
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
textstksiz := p.To.Offset
cmd/internal/obj/mips: support NOFRAME This passes toolstash -cmp with one exception: assembly functions that were declared with a frame size of -4 (or -8) used to record locals=0xfffffffffffffffc in the object file and now record locals=0x0. This doesn't affect anything. Change-Id: I0d15e81770e54222ae329ce4496da06016736771 Reviewed-on: https://go-review.googlesource.com/92041 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-24 17:17:38 -05:00
if textstksiz == -ctxt.FixedFrameSize() {
// Historical way to mark NOFRAME.
p.From.Sym.Set(obj.AttrNoFrame, true)
textstksiz = 0
}
if textstksiz < 0 {
c.ctxt.Diag("negative frame size %d - did you mean NOFRAME?", textstksiz)
}
if p.From.Sym.NoFrame() {
if textstksiz != 0 {
c.ctxt.Diag("NOFRAME functions must have a frame size of 0, not %d", textstksiz)
}
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
c.cursym.Func().Args = p.To.Val.(int32)
c.cursym.Func().Locals = int32(textstksiz)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
/*
* find leaf subroutines
* expand RET
* expand BECOME pseudo
*/
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
for p := c.cursym.Func().Text; p != nil; p = p.Link {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
switch p.As {
/* too hard, just leave alone */
case obj.ATEXT:
p.Mark |= LABEL | LEAF | SYNC
if p.Link != nil {
p.Link.Mark |= LABEL
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
/* too hard, just leave alone */
case AMOVW,
AMOVV:
if p.To.Type == obj.TYPE_REG && p.To.Reg >= REG_SPECIAL {
p.Mark |= LABEL | SYNC
break
}
if p.From.Type == obj.TYPE_REG && p.From.Reg >= REG_SPECIAL {
p.Mark |= LABEL | SYNC
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
/* too hard, just leave alone */
case ASYSCALL,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
AWORD,
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
ATLBWR,
ATLBWI,
ATLBP,
ATLBR:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.Mark |= LABEL | SYNC
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ANOR:
if p.To.Type == obj.TYPE_REG {
if p.To.Reg == REGZERO {
p.Mark |= LABEL | SYNC
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ABGEZAL,
ABLTZAL,
AJAL,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
obj.ADUFFZERO,
obj.ADUFFCOPY:
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
c.cursym.Func().Text.Mark &^= LEAF
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
fallthrough
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case AJMP,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
ABEQ,
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
ABGEZ,
ABGTZ,
ABLEZ,
ABLTZ,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
ABNE,
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
ABFPT, ABFPF:
if p.As == ABFPT || p.As == ABFPF {
// We don't treat ABFPT and ABFPF as branches here,
// so that we will always fill nop (0x0) in their
// delay slot during assembly.
// This is to workaround a kernel FPU emulator bug
// where it uses the user stack to simulate the
// instruction in the delay slot if it's not 0x0,
// and somehow that leads to SIGSEGV when the kernel
// jump to the stack.
p.Mark |= SYNC
} else {
p.Mark |= BRANCH
}
cmd/compile,cmd/asm: simplify recording of branch targets, take 2 We currently use two fields to store the targets of branches. Some phases use p.To.Val, some use p.Pcond. Rewrite so that every branch instruction uses p.To.Val. p.From.Val is also used in rare instances. Introduce a Pool link for use by arm/arm64, instead of repurposing Pcond. This is a cleanup CL in preparation for some stack frame CLs. Change-Id: If8239177e4b1ea2bccd0608eb39553d23210d405 Reviewed-on: https://go-review.googlesource.com/c/go/+/251437 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-08-28 17:10:32 +00:00
q1 := p.To.Target()
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if q1 != nil {
for q1.As == obj.ANOP {
q1 = q1.Link
cmd/compile,cmd/asm: simplify recording of branch targets, take 2 We currently use two fields to store the targets of branches. Some phases use p.To.Val, some use p.Pcond. Rewrite so that every branch instruction uses p.To.Val. p.From.Val is also used in rare instances. Introduce a Pool link for use by arm/arm64, instead of repurposing Pcond. This is a cleanup CL in preparation for some stack frame CLs. Change-Id: If8239177e4b1ea2bccd0608eb39553d23210d405 Reviewed-on: https://go-review.googlesource.com/c/go/+/251437 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-08-28 17:10:32 +00:00
p.To.SetTarget(q1)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
if q1.Mark&LEAF == 0 {
q1.Mark |= LABEL
}
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
//else {
// p.Mark |= LABEL
//}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q1 = p.Link
if q1 != nil {
q1.Mark |= LABEL
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ARET:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.Link != nil {
p.Link.Mark |= LABEL
}
}
}
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
var mov, add obj.As
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.ctxt.Arch.Family == sys.MIPS64 {
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
add = AADDV
mov = AMOVV
} else {
add = AADDU
mov = AMOVW
}
cmd/internal/obj: stop removing NOPs from instruction stream This has already been done for s390x, ppc64. This CL is for all the other architectures. Fixes #40796 Change-Id: Idd1816e057df63022d47e99fa06617811d8c8489 Reviewed-on: https://go-review.googlesource.com/c/go/+/248684 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-08-15 08:08:37 -07:00
var q *obj.Prog
var q1 *obj.Prog
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
autosize := int32(0)
var p1 *obj.Prog
var p2 *obj.Prog
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
for p := c.cursym.Func().Text; p != nil; p = p.Link {
cmd/internal/obj: add As type for assembly opcodes Passes toolstash/buildall. Fixes #14692. Change-Id: I4352678d8251309f2b8b7793674c550fac948006 Reviewed-on: https://go-review.googlesource.com/20350 Reviewed-by: Dave Cheney <dave@cheney.net> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-03-07 18:00:08 -08:00
o := p.As
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
switch o {
case obj.ATEXT:
cmd/internal/obj/mips: support NOFRAME This passes toolstash -cmp with one exception: assembly functions that were declared with a frame size of -4 (or -8) used to record locals=0xfffffffffffffffc in the object file and now record locals=0x0. This doesn't affect anything. Change-Id: I0d15e81770e54222ae329ce4496da06016736771 Reviewed-on: https://go-review.googlesource.com/92041 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-24 17:17:38 -05:00
autosize = int32(textstksiz)
if p.Mark&LEAF != 0 && autosize == 0 {
// A leaf function with no locals has no frame.
p.From.Sym.Set(obj.AttrNoFrame, true)
}
if !p.From.Sym.NoFrame() {
// If there is a stack frame at all, it includes
// space to save the LR.
autosize += int32(c.ctxt.FixedFrameSize())
}
if autosize&4 != 0 && c.ctxt.Arch.Family == sys.MIPS64 {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
autosize += 4
}
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
if autosize == 0 && c.cursym.Func().Text.Mark&LEAF == 0 {
if c.cursym.Func().Text.From.Sym.NoSplit() {
cmd/internal/obj/mips: support NOFRAME This passes toolstash -cmp with one exception: assembly functions that were declared with a frame size of -4 (or -8) used to record locals=0xfffffffffffffffc in the object file and now record locals=0x0. This doesn't affect anything. Change-Id: I0d15e81770e54222ae329ce4496da06016736771 Reviewed-on: https://go-review.googlesource.com/92041 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-24 17:17:38 -05:00
if ctxt.Debugvlog {
ctxt.Logf("save suppressed in: %s\n", c.cursym.Name)
}
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
c.cursym.Func().Text.Mark |= LEAF
cmd/internal/obj/mips: support NOFRAME This passes toolstash -cmp with one exception: assembly functions that were declared with a frame size of -4 (or -8) used to record locals=0xfffffffffffffffc in the object file and now record locals=0x0. This doesn't affect anything. Change-Id: I0d15e81770e54222ae329ce4496da06016736771 Reviewed-on: https://go-review.googlesource.com/92041 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-24 17:17:38 -05:00
}
}
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.To.Offset = int64(autosize) - ctxt.FixedFrameSize()
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
if c.cursym.Func().Text.Mark&LEAF != 0 {
cmd/internal/obj/mips: support NOFRAME This passes toolstash -cmp with one exception: assembly functions that were declared with a frame size of -4 (or -8) used to record locals=0xfffffffffffffffc in the object file and now record locals=0x0. This doesn't affect anything. Change-Id: I0d15e81770e54222ae329ce4496da06016736771 Reviewed-on: https://go-review.googlesource.com/92041 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-24 17:17:38 -05:00
c.cursym.Set(obj.AttrLeaf, true)
if p.From.Sym.NoFrame() {
break
}
}
cmd/internal/obj: stop storing Text flags in From3 Prior to this CL, flags such as NOSPLIT on ATEXT Progs were stored in From3.Offset. Some but not all of those flags were also duplicated into From.Sym.Attribute. This CL migrates all of those flags into From.Sym.Attribute and stops creating a From3. A side-effect of this is that printing an ATEXT Prog can no longer simply dump From3.Offset. That's kind of good, since the raw flag value wasn't very informative anyway, but it did necessitate a bunch of updates to the cmd/asm tests. The reason I'm doing this work now is that avoiding storing flags in both From.Sym and From3.Offset simplifies some other changes to fix the data race first described in CL 40254. This CL almost passes toolstash-check -all. The only changes are in cases where the assembler has decided that a function's flags may be altered, e.g. to make a function with no calls in it NOSPLIT. Prior to this CL, that information was not printed. Sample before: "".Ctz64 t=1 size=63 args=0x10 locals=0x0 0x0000 00000 (/Users/josh/go/tip/src/runtime/internal/sys/intrinsics.go:35) TEXT "".Ctz64(SB), $0-16 0x0000 00000 (/Users/josh/go/tip/src/runtime/internal/sys/intrinsics.go:35) FUNCDATA $0, gclocals·f207267fbf96a0178e8758c6e3e0ce28(SB) Sample after: "".Ctz64 t=1 nosplit size=63 args=0x10 locals=0x0 0x0000 00000 (/Users/josh/go/tip/src/runtime/internal/sys/intrinsics.go:35) TEXT "".Ctz64(SB), NOSPLIT, $0-16 0x0000 00000 (/Users/josh/go/tip/src/runtime/internal/sys/intrinsics.go:35) FUNCDATA $0, gclocals·f207267fbf96a0178e8758c6e3e0ce28(SB) Observe the additional "nosplit" in the first line and the additional "NOSPLIT" in the second line. Updates #15756 Change-Id: I5c59bd8f3bdc7c780361f801d94a261f0aef3d13 Reviewed-on: https://go-review.googlesource.com/40495 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-04-11 15:15:04 -07:00
if !p.From.Sym.NoSplit() {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = c.stacksplit(p, autosize) // emit split check
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
q = p
if autosize != 0 {
cmd/internal/obj/mips: store LR before update SP in function prologue This prevents the traceback code from seeing a half-updated stack frame when a profiling signal comes during the execution of function prologue. Also fixes mips64x part of #17381. Change-Id: Iec9683427e546e3648b2e8b1dde956d13f6eb938 Reviewed-on: https://go-review.googlesource.com/31721 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-10-21 18:22:13 -04:00
// Make sure to save link register for non-empty frame, even if
// it is a leaf function, so that traceback works.
// Store link register before decrement SP, so if a signal comes
// during the execution of the function prologue, the traceback
// code will not see a half-updated stack frame.
cmd/internal/obj/mips: mark unsafe points For async preemption, we will be using REGTMP as a temporary register in injected call on MIPS, which will clobber it. So any code that uses REGTMP is not safe for async preemption. In the assembler backend, we expand a Prog to multiple machine instructions and use REGTMP as a temporary register if necessary. These need to be marked unsafe. In fact, most of the multi-instruction Progs use REGTMP, so we mark all of them, except ones that are whitelisted. Change-Id: Ic00ae5589683c2c9525abdaee076d884df6b0d1e Reviewed-on: https://go-review.googlesource.com/c/go/+/203718 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2019-10-26 22:49:13 -04:00
// This sequence is not async preemptible, as if we open a frame
// at the current SP, it will clobber the saved LR.
q = c.ctxt.StartUnsafePoint(q, c.newprog)
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = mov
[dev.inline] cmd/internal/obj: rename Prog.Lineno to Prog.Pos Change-Id: I7585d85907869f5a286b36936dfd035f1e8e9906 Reviewed-on: https://go-review.googlesource.com/34197 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-12-09 14:30:40 -05:00
q.Pos = p.Pos
cmd/internal/obj/mips: store LR before update SP in function prologue This prevents the traceback code from seeing a half-updated stack frame when a profiling signal comes during the execution of function prologue. Also fixes mips64x part of #17381. Change-Id: Iec9683427e546e3648b2e8b1dde956d13f6eb938 Reviewed-on: https://go-review.googlesource.com/31721 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-10-21 18:22:13 -04:00
q.From.Type = obj.TYPE_REG
q.From.Reg = REGLINK
q.To.Type = obj.TYPE_MEM
q.To.Offset = int64(-autosize)
q.To.Reg = REGSP
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = add
[dev.inline] cmd/internal/obj: rename Prog.Lineno to Prog.Pos Change-Id: I7585d85907869f5a286b36936dfd035f1e8e9906 Reviewed-on: https://go-review.googlesource.com/34197 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-12-09 14:30:40 -05:00
q.Pos = p.Pos
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.From.Type = obj.TYPE_CONST
q.From.Offset = int64(-autosize)
q.To.Type = obj.TYPE_REG
q.To.Reg = REGSP
q.Spadj = +autosize
cmd/internal/obj/mips: mark unsafe points For async preemption, we will be using REGTMP as a temporary register in injected call on MIPS, which will clobber it. So any code that uses REGTMP is not safe for async preemption. In the assembler backend, we expand a Prog to multiple machine instructions and use REGTMP as a temporary register if necessary. These need to be marked unsafe. In fact, most of the multi-instruction Progs use REGTMP, so we mark all of them, except ones that are whitelisted. Change-Id: Ic00ae5589683c2c9525abdaee076d884df6b0d1e Reviewed-on: https://go-review.googlesource.com/c/go/+/203718 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2019-10-26 22:49:13 -04:00
q = c.ctxt.EndUnsafePoint(q, c.newprog, -1)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
if c.cursym.Func().Text.From.Sym.Wrapper() && c.cursym.Func().Text.Mark&LEAF == 0 {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
// if(g->panic != nil && g->panic->argp == FP) g->panic->argp = bottom-of-frame
//
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
// MOV g_panic(g), R1
// BEQ R1, end
// MOV panic_argp(R1), R2
// ADD $(autosize+FIXED_FRAME), R29, R3
// BNE R2, R3, end
// ADD $FIXED_FRAME, R29, R2
// MOV R2, panic_argp(R1)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
// end:
// NOP
//
// The NOP is needed to give the jumps somewhere to land.
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// It is a liblink NOP, not an mips NOP: it encodes to 0 instruction bytes.
cmd/internal/obj/mips: support NOFRAME This passes toolstash -cmp with one exception: assembly functions that were declared with a frame size of -4 (or -8) used to record locals=0xfffffffffffffffc in the object file and now record locals=0x0. This doesn't affect anything. Change-Id: I0d15e81770e54222ae329ce4496da06016736771 Reviewed-on: https://go-review.googlesource.com/92041 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-01-24 17:17:38 -05:00
//
// We don't generate this for leafs because that means the wrapped
// function was inlined into the wrapper.
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = mov
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Type = obj.TYPE_MEM
q.From.Reg = REGG
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
q.From.Offset = 4 * int64(c.ctxt.Arch.PtrSize) // G.panic
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.To.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.As = ABEQ
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.From.Type = obj.TYPE_REG
q.From.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.To.Type = obj.TYPE_BRANCH
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.Mark |= BRANCH
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p1 = q
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = mov
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Type = obj.TYPE_MEM
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.From.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Offset = 0 // Panic.argp
q.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.To.Reg = REG_R2
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = add
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Type = obj.TYPE_CONST
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.From.Offset = int64(autosize) + ctxt.FixedFrameSize()
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.Reg = REGSP
q.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.To.Reg = REG_R3
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.As = ABNE
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.From.Type = obj.TYPE_REG
q.From.Reg = REG_R2
q.Reg = REG_R3
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.To.Type = obj.TYPE_BRANCH
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.Mark |= BRANCH
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p2 = q
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = add
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Type = obj.TYPE_CONST
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.From.Offset = ctxt.FixedFrameSize()
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.Reg = REGSP
q.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.To.Reg = REG_R2
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = mov
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.From.Reg = REG_R2
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.To.Type = obj.TYPE_MEM
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.To.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.To.Offset = 0 // Panic.argp
cmd/compile: teach assemblers to accept a Prog allocator The existing bulk Prog allocator is not concurrency-safe. To allow for concurrency-safe bulk allocation of Progs, I want to move Prog allocation and caching upstream, to the clients of cmd/internal/obj. This is a preliminary enabling refactoring. After this CL, instead of calling Ctxt.NewProg throughout the assemblers, we thread through a newprog function that returns a new Prog. That function is set up to be Ctxt.NewProg, so there are no real changes in this CL; this CL only establishes the plumbing. Passes toolstash-check -all. Negligible compiler performance impact. Updates #15756 name old time/op new time/op delta Template 213ms ± 3% 214ms ± 4% ~ (p=0.574 n=49+47) Unicode 90.1ms ± 5% 89.9ms ± 4% ~ (p=0.417 n=50+49) GoTypes 585ms ± 4% 584ms ± 3% ~ (p=0.466 n=49+49) SSA 6.50s ± 3% 6.52s ± 2% ~ (p=0.251 n=49+49) Flate 128ms ± 4% 128ms ± 4% ~ (p=0.673 n=49+50) GoParser 152ms ± 3% 152ms ± 3% ~ (p=0.810 n=48+49) Reflect 372ms ± 4% 372ms ± 5% ~ (p=0.778 n=49+50) Tar 113ms ± 5% 111ms ± 4% -0.98% (p=0.016 n=50+49) XML 208ms ± 3% 208ms ± 2% ~ (p=0.483 n=47+49) [Geo mean] 285ms 285ms -0.17% name old user-ns/op new user-ns/op delta Template 253M ± 8% 254M ± 9% ~ (p=0.899 n=50+50) Unicode 106M ± 9% 106M ±11% ~ (p=0.642 n=50+50) GoTypes 736M ± 4% 740M ± 4% ~ (p=0.121 n=50+49) SSA 8.82G ± 3% 8.88G ± 2% +0.65% (p=0.006 n=49+48) Flate 147M ± 4% 147M ± 5% ~ (p=0.844 n=47+48) GoParser 179M ± 4% 178M ± 6% ~ (p=0.785 n=50+50) Reflect 443M ± 6% 441M ± 5% ~ (p=0.850 n=48+47) Tar 126M ± 5% 126M ± 5% ~ (p=0.734 n=50+50) XML 244M ± 5% 244M ± 5% ~ (p=0.594 n=49+50) [Geo mean] 341M 341M +0.11% Change-Id: Ice962f61eb3a524c2db00a166cb582c22caa7d68 Reviewed-on: https://go-review.googlesource.com/39633 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2017-04-04 14:31:55 -07:00
q = obj.Appendp(q, newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.As = obj.ANOP
cmd/compile,cmd/asm: simplify recording of branch targets, take 2 We currently use two fields to store the targets of branches. Some phases use p.To.Val, some use p.Pcond. Rewrite so that every branch instruction uses p.To.Val. p.From.Val is also used in rare instances. Introduce a Pool link for use by arm/arm64, instead of repurposing Pcond. This is a cleanup CL in preparation for some stack frame CLs. Change-Id: If8239177e4b1ea2bccd0608eb39553d23210d405 Reviewed-on: https://go-review.googlesource.com/c/go/+/251437 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-08-28 17:10:32 +00:00
p1.To.SetTarget(q)
p2.To.SetTarget(q)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case ARET:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.From.Type == obj.TYPE_CONST {
ctxt.Diag("using BECOME (%v) is not supported!", p)
break
}
cmd/compile: get MIPS64 SSA working - implement *, /, %, shifts, Zero, Move. - fix mistakes in comparison. - fix floating point rounding. - handle RetJmp in assembler (which was not handled, as a consequence Duff's device was disabled in the old backend.) all.bash now passes with SSA on. Updates #16359. Change-Id: Ia14eed0ed1176b5d800592080c8f53dded7fe73f Reviewed-on: https://go-review.googlesource.com/27592 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-22 12:25:23 -04:00
retSym := p.To.Sym
p.To.Name = obj.NAME_NONE // clear fields as we may modify p to other instruction
p.To.Sym = nil
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
if c.cursym.Func().Text.Mark&LEAF != 0 {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if autosize == 0 {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = AJMP
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From = obj.Addr{}
cmd/compile: get MIPS64 SSA working - implement *, /, %, shifts, Zero, Move. - fix mistakes in comparison. - fix floating point rounding. - handle RetJmp in assembler (which was not handled, as a consequence Duff's device was disabled in the old backend.) all.bash now passes with SSA on. Updates #16359. Change-Id: Ia14eed0ed1176b5d800592080c8f53dded7fe73f Reviewed-on: https://go-review.googlesource.com/27592 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-22 12:25:23 -04:00
if retSym != nil { // retjmp
p.To.Type = obj.TYPE_BRANCH
p.To.Name = obj.NAME_EXTERN
p.To.Sym = retSym
} else {
p.To.Type = obj.TYPE_MEM
p.To.Reg = REGLINK
p.To.Offset = 0
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.Mark |= BRANCH
break
}
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.As = add
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_CONST
p.From.Offset = int64(autosize)
p.To.Type = obj.TYPE_REG
p.To.Reg = REGSP
p.Spadj = -autosize
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
q = c.newprog()
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.As = AJMP
[dev.inline] cmd/internal/obj: rename Prog.Lineno to Prog.Pos Change-Id: I7585d85907869f5a286b36936dfd035f1e8e9906 Reviewed-on: https://go-review.googlesource.com/34197 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-12-09 14:30:40 -05:00
q.Pos = p.Pos
cmd/internal/obj: fix tail call in non-zero frame leaf function on MIPS and S390X A "RET f(SB)" wasn't assembled correctly in a leaf function with non-zero frame size. Follows CL 371034, for MIPS(32/64)(be/le) and S390X. Other architectures seem to do it right. Add a test. Change-Id: I41349a7ae9862b924f3a3de2bcb55b782061ce21 Reviewed-on: https://go-review.googlesource.com/c/go/+/371214 Trust: Cherry Mui <cherryyz@google.com> Run-TryBot: Cherry Mui <cherryyz@google.com> Reviewed-by: David Chase <drchase@google.com>
2021-12-13 10:24:07 -05:00
if retSym != nil { // retjmp
q.To.Type = obj.TYPE_BRANCH
q.To.Name = obj.NAME_EXTERN
q.To.Sym = retSym
} else {
q.To.Type = obj.TYPE_MEM
q.To.Reg = REGLINK
q.To.Offset = 0
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.Mark |= BRANCH
q.Spadj = +autosize
q.Link = p.Link
p.Link = q
break
}
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.As = mov
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_MEM
p.From.Offset = 0
p.From.Reg = REGSP
p.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: use LR as temporary register in RET On mips/mips64, for non-leaf function, RET is assembled as MOV (SP), R4 // load saved LR ADD $framesize, SP JMP (R4) This clobbers R4 unnecessarily. Use the link register as temporary instead. Probably for Go 1.11. Change-Id: I2209db7be11074ed2e0e0829cace95ebfb709e9f Reviewed-on: https://go-review.googlesource.com/79016 Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Austin Clements <austin@google.com>
2017-11-21 09:25:29 -05:00
p.To.Reg = REGLINK
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if autosize != 0 {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
q = c.newprog()
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
q.As = add
[dev.inline] cmd/internal/obj: rename Prog.Lineno to Prog.Pos Change-Id: I7585d85907869f5a286b36936dfd035f1e8e9906 Reviewed-on: https://go-review.googlesource.com/34197 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-12-09 14:30:40 -05:00
q.Pos = p.Pos
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q.From.Type = obj.TYPE_CONST
q.From.Offset = int64(autosize)
q.To.Type = obj.TYPE_REG
q.To.Reg = REGSP
q.Spadj = -autosize
q.Link = p.Link
p.Link = q
}
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
q1 = c.newprog()
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q1.As = AJMP
[dev.inline] cmd/internal/obj: rename Prog.Lineno to Prog.Pos Change-Id: I7585d85907869f5a286b36936dfd035f1e8e9906 Reviewed-on: https://go-review.googlesource.com/34197 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-12-09 14:30:40 -05:00
q1.Pos = p.Pos
cmd/compile: get MIPS64 SSA working - implement *, /, %, shifts, Zero, Move. - fix mistakes in comparison. - fix floating point rounding. - handle RetJmp in assembler (which was not handled, as a consequence Duff's device was disabled in the old backend.) all.bash now passes with SSA on. Updates #16359. Change-Id: Ia14eed0ed1176b5d800592080c8f53dded7fe73f Reviewed-on: https://go-review.googlesource.com/27592 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-22 12:25:23 -04:00
if retSym != nil { // retjmp
q1.To.Type = obj.TYPE_BRANCH
q1.To.Name = obj.NAME_EXTERN
q1.To.Sym = retSym
} else {
q1.To.Type = obj.TYPE_MEM
q1.To.Offset = 0
cmd/internal/obj/mips: use LR as temporary register in RET On mips/mips64, for non-leaf function, RET is assembled as MOV (SP), R4 // load saved LR ADD $framesize, SP JMP (R4) This clobbers R4 unnecessarily. Use the link register as temporary instead. Probably for Go 1.11. Change-Id: I2209db7be11074ed2e0e0829cace95ebfb709e9f Reviewed-on: https://go-review.googlesource.com/79016 Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Austin Clements <austin@google.com>
2017-11-21 09:25:29 -05:00
q1.To.Reg = REGLINK
cmd/compile: get MIPS64 SSA working - implement *, /, %, shifts, Zero, Move. - fix mistakes in comparison. - fix floating point rounding. - handle RetJmp in assembler (which was not handled, as a consequence Duff's device was disabled in the old backend.) all.bash now passes with SSA on. Updates #16359. Change-Id: Ia14eed0ed1176b5d800592080c8f53dded7fe73f Reviewed-on: https://go-review.googlesource.com/27592 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-08-22 12:25:23 -04:00
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q1.Mark |= BRANCH
q1.Spadj = +autosize
q1.Link = q.Link
q.Link = q1
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
case AADD,
AADDU,
AADDV,
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
AADDVU:
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if p.To.Type == obj.TYPE_REG && p.To.Reg == REGSP && p.From.Type == obj.TYPE_CONST {
p.Spadj = int32(-p.From.Offset)
}
cmd/compile: intrinsify runtime.getcallerpc on all link register architectures Add a compiler intrinsic for getcallerpc on following architectures: arm mips mipsle mips64 mips64le ppc64 ppc64le s390x Change-Id: I758f3d4742fc214b206bcd07d90408622c17dbef Reviewed-on: https://go-review.googlesource.com/110835 Run-TryBot: Wei Xiao <Wei.Xiao@arm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-05-02 14:25:00 +08:00
case obj.AGETCALLERPC:
if cursym.Leaf() {
/* MOV LR, Rd */
p.As = mov
p.From.Type = obj.TYPE_REG
p.From.Reg = REGLINK
} else {
/* MOV (RSP), Rd */
p.As = mov
p.From.Type = obj.TYPE_MEM
p.From.Reg = REGSP
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/asm, cmd/link, runtime: introduce FuncInfo flag bits The runtime traceback code has its own definition of which functions mark the top frame of a stack, separate from the TOPFRAME bits that exist in the assembly and are passed along in DWARF information. It's error-prone and redundant to have two different sources of truth. This CL provides the actual TOPFRAME bits to the runtime, so that the runtime can use those bits instead of reinventing its own category. This CL also adds a new bit, SPWRITE, which marks functions that write directly to SP (anything but adding and subtracting constants). Such functions must stop a traceback, because the traceback has no way to rederive the SP on entry. Again, the runtime has its own definition which is mostly correct, but also missing some functions. During ordinary goroutine context switches, such functions do not appear on the stack, so the incompleteness in the runtime usually doesn't matter. But profiling signals can arrive at any moment, and the runtime may crash during traceback if it attempts to unwind an SP-writing frame and gets out-of-sync with the actual stack. The runtime contains code to try to detect likely candidates but again it is incomplete. Deriving the SPWRITE bit automatically from the actual assembly code provides the complete truth, and passing it to the runtime lets the runtime use it. This CL is part of a stack adding windows/arm64 support (#36439), intended to land in the Go 1.17 cycle. This CL is, however, not windows/arm64-specific. It is cleanup meant to make the port (and future ports) easier. Change-Id: I227f53b23ac5b3dabfcc5e8ee3f00df4e113cf58 Reviewed-on: https://go-review.googlesource.com/c/go/+/288800 Trust: Russ Cox <rsc@golang.org> Trust: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-28 15:21:33 -05:00
if p.To.Type == obj.TYPE_REG && p.To.Reg == REGSP && p.Spadj == 0 {
f := c.cursym.Func()
if f.FuncFlag&objabi.FuncFlag_SPWRITE == 0 {
c.cursym.Func().FuncFlag |= objabi.FuncFlag_SPWRITE
if ctxt.Debugvlog || !ctxt.IsAsm {
ctxt.Logf("auto-SPWRITE: %s %v\n", c.cursym.Name, p)
if !ctxt.IsAsm {
ctxt.Diag("invalid auto-SPWRITE in non-assembly")
ctxt.DiagFlush()
log.Fatalf("bad SPWRITE")
}
}
}
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.ctxt.Arch.Family == sys.MIPS {
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
// rewrite MOVD into two MOVF in 32-bit mode to avoid unaligned memory access
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
for p = c.cursym.Func().Text; p != nil; p = p1 {
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
p1 = p.Link
if p.As != AMOVD {
continue
}
if p.From.Type != obj.TYPE_MEM && p.To.Type != obj.TYPE_MEM {
continue
}
p.As = AMOVF
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
q = c.newprog()
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
*q = *p
q.Link = p.Link
p.Link = q
p1 = q.Link
cmd/internal/obj/mips: load/store even float registers first There is a bug in Octeon III processors where storing an odd floating point register after it has recently been written to by a double floating point operation will store the old value from before the double operation (there are some extra details - the operation and store must be a certain number of cycles apart). However, this bug does not occur if the even register is stored first. Currently the bug only happens on big endian because go always loads the even register first on little endian. Workaround the bug by always loading / storing the even floating point register first. Since this is just an instruction reordering, it should have no performance penalty. This follows other compilers like GCC which will always store the even register first (although you do have to set the ISA level to MIPS I to prevent it from using SDC1). Change-Id: I5e73daa4d724ca1df7bf5228aab19f53f26a4976 Reviewed-on: https://go-review.googlesource.com/97735 Reviewed-by: Keith Randall <khr@golang.org>
2018-02-28 16:10:14 +00:00
var addrOff int64
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.ctxt.Arch.ByteOrder == binary.BigEndian {
cmd/internal/obj/mips: load/store even float registers first There is a bug in Octeon III processors where storing an odd floating point register after it has recently been written to by a double floating point operation will store the old value from before the double operation (there are some extra details - the operation and store must be a certain number of cycles apart). However, this bug does not occur if the even register is stored first. Currently the bug only happens on big endian because go always loads the even register first on little endian. Workaround the bug by always loading / storing the even floating point register first. Since this is just an instruction reordering, it should have no performance penalty. This follows other compilers like GCC which will always store the even register first (although you do have to set the ISA level to MIPS I to prevent it from using SDC1). Change-Id: I5e73daa4d724ca1df7bf5228aab19f53f26a4976 Reviewed-on: https://go-review.googlesource.com/97735 Reviewed-by: Keith Randall <khr@golang.org>
2018-02-28 16:10:14 +00:00
addrOff = 4 // swap load/save order
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
}
if p.From.Type == obj.TYPE_MEM {
reg := REG_F0 + (p.To.Reg-REG_F0)&^1
cmd/internal/obj/mips: load/store even float registers first There is a bug in Octeon III processors where storing an odd floating point register after it has recently been written to by a double floating point operation will store the old value from before the double operation (there are some extra details - the operation and store must be a certain number of cycles apart). However, this bug does not occur if the even register is stored first. Currently the bug only happens on big endian because go always loads the even register first on little endian. Workaround the bug by always loading / storing the even floating point register first. Since this is just an instruction reordering, it should have no performance penalty. This follows other compilers like GCC which will always store the even register first (although you do have to set the ISA level to MIPS I to prevent it from using SDC1). Change-Id: I5e73daa4d724ca1df7bf5228aab19f53f26a4976 Reviewed-on: https://go-review.googlesource.com/97735 Reviewed-by: Keith Randall <khr@golang.org>
2018-02-28 16:10:14 +00:00
p.To.Reg = reg
q.To.Reg = reg + 1
p.From.Offset += addrOff
q.From.Offset += 4 - addrOff
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
} else if p.To.Type == obj.TYPE_MEM {
reg := REG_F0 + (p.From.Reg-REG_F0)&^1
cmd/internal/obj/mips: load/store even float registers first There is a bug in Octeon III processors where storing an odd floating point register after it has recently been written to by a double floating point operation will store the old value from before the double operation (there are some extra details - the operation and store must be a certain number of cycles apart). However, this bug does not occur if the even register is stored first. Currently the bug only happens on big endian because go always loads the even register first on little endian. Workaround the bug by always loading / storing the even floating point register first. Since this is just an instruction reordering, it should have no performance penalty. This follows other compilers like GCC which will always store the even register first (although you do have to set the ISA level to MIPS I to prevent it from using SDC1). Change-Id: I5e73daa4d724ca1df7bf5228aab19f53f26a4976 Reviewed-on: https://go-review.googlesource.com/97735 Reviewed-by: Keith Randall <khr@golang.org>
2018-02-28 16:10:14 +00:00
p.From.Reg = reg
q.From.Reg = reg + 1
p.To.Offset += addrOff
q.To.Offset += 4 - addrOff
cmd/internal/obj/mips: replace MOVD with MOVF on 32-bit to avoid unaligned memory access This is the simplest CL that I can make for Go 1.8. For Go 1.9, we can revisit it and optimize the redundant address generation instructions or just fix #599 instead. Fixes #18140. Change-Id: Ie4804ab0e00dc6bb318da2bece8035c7c71caac3 Reviewed-on: https://go-review.googlesource.com/34193 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-12-09 00:13:43 -05:00
}
}
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if nosched {
// if we don't do instruction scheduling, simply add
// NOP after each branch instruction.
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
for p = c.cursym.Func().Text; p != nil; p = p.Link {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if p.Mark&BRANCH != 0 {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.addnop(p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
}
return
}
// instruction scheduling
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
q = nil // p - 1
q1 = c.cursym.Func().Text // top of block
o := 0 // count of instructions
for p = c.cursym.Func().Text; p != nil; p = p1 {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p1 = p.Link
o++
if p.Mark&NOSCHED != 0 {
if q1 != p {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.sched(q1, q)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
for ; p != nil; p = p.Link {
if p.Mark&NOSCHED == 0 {
break
}
q = p
}
p1 = p
q1 = p
o = 0
continue
}
if p.Mark&(LABEL|SYNC) != 0 {
if q1 != p {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.sched(q1, q)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
q1 = p
o = 1
}
if p.Mark&(BRANCH|SYNC) != 0 {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.sched(q1, p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q1 = p1
o = 0
}
if o >= NSCHED {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.sched(q1, p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q1 = p1
o = 0
}
q = p
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
func (c *ctxt0) stacksplit(p *obj.Prog, framesize int32) *obj.Prog {
cmd/internal/obj/mips: simplify huge frame prologue CL 307010 for mips. Change-Id: Ie9addea728548315fdbb8e46f75da4010a9796bb Reviewed-on: https://go-review.googlesource.com/c/go/+/307051 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-04-02 17:20:15 -04:00
var mov, add obj.As
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.ctxt.Arch.Family == sys.MIPS64 {
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
add = AADDV
mov = AMOVV
} else {
add = AADDU
mov = AMOVW
}
cmd/{asm,compile,internal/obj}: add "maymorestack" support This adds a debugging hook for optionally calling a "maymorestack" function in the prologue of any function that might call morestack (whether it does at run time or not). The maymorestack function will let us improve lock checking and add debugging modes that stress function preemption and stack growth. Passes toolstash-check -all (except on js/wasm, where toolstash appears to be broken) Fixes #48297. Change-Id: I27197947482b329af75dafb9971fc0d3a52eaf31 Reviewed-on: https://go-review.googlesource.com/c/go/+/359795 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
2019-08-20 17:39:09 -04:00
if c.ctxt.Flag_maymorestack != "" {
// Save LR and REGCTXT.
frameSize := 2 * c.ctxt.Arch.PtrSize
p = c.ctxt.StartUnsafePoint(p, c.newprog)
// MOV REGLINK, -8/-16(SP)
p = obj.Appendp(p, c.newprog)
p.As = mov
p.From.Type = obj.TYPE_REG
p.From.Reg = REGLINK
p.To.Type = obj.TYPE_MEM
p.To.Offset = int64(-frameSize)
p.To.Reg = REGSP
// MOV REGCTXT, -4/-8(SP)
p = obj.Appendp(p, c.newprog)
p.As = mov
p.From.Type = obj.TYPE_REG
p.From.Reg = REGCTXT
p.To.Type = obj.TYPE_MEM
p.To.Offset = -int64(c.ctxt.Arch.PtrSize)
p.To.Reg = REGSP
// ADD $-8/$-16, SP
p = obj.Appendp(p, c.newprog)
p.As = add
p.From.Type = obj.TYPE_CONST
p.From.Offset = int64(-frameSize)
p.To.Type = obj.TYPE_REG
p.To.Reg = REGSP
p.Spadj = int32(frameSize)
// JAL maymorestack
p = obj.Appendp(p, c.newprog)
p.As = AJAL
p.To.Type = obj.TYPE_BRANCH
// See ../x86/obj6.go
p.To.Sym = c.ctxt.LookupABI(c.ctxt.Flag_maymorestack, c.cursym.ABI())
p.Mark |= BRANCH
// Restore LR and REGCTXT.
// MOV 0(SP), REGLINK
p = obj.Appendp(p, c.newprog)
p.As = mov
p.From.Type = obj.TYPE_MEM
p.From.Offset = 0
p.From.Reg = REGSP
p.To.Type = obj.TYPE_REG
p.To.Reg = REGLINK
// MOV 4/8(SP), REGCTXT
p = obj.Appendp(p, c.newprog)
p.As = mov
p.From.Type = obj.TYPE_MEM
p.From.Offset = int64(c.ctxt.Arch.PtrSize)
p.From.Reg = REGSP
p.To.Type = obj.TYPE_REG
p.To.Reg = REGCTXT
// ADD $8/$16, SP
p = obj.Appendp(p, c.newprog)
p.As = add
p.From.Type = obj.TYPE_CONST
p.From.Offset = int64(frameSize)
p.To.Type = obj.TYPE_REG
p.To.Reg = REGSP
p.Spadj = int32(-frameSize)
p = c.ctxt.EndUnsafePoint(p, c.newprog, -1)
}
// Jump back to here after morestack returns.
startPred := p
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
// MOV g_stackguard(g), R1
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.As = mov
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_MEM
p.From.Reg = REGG
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p.From.Offset = 2 * int64(c.ctxt.Arch.PtrSize) // G.stackguard0
if c.cursym.CFunc() {
p.From.Offset = 3 * int64(c.ctxt.Arch.PtrSize) // G.stackguard1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
p.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.To.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj: mark split-stack prologue nonpreemptible When there are both a synchronous preemption request (by clobbering the stack guard) and an asynchronous one (by signal), the running goroutine may observe the synchronous request first in stack bounds check, and go to the path of calling morestack. If the preemption signal arrives at this point before the call to morestack, the goroutine will be asynchronously preempted, entering the scheduler. When it is resumed, the scheduler clears the preemption request, unclobbers the stack guard. But the resumed goroutine will still call morestack, as it is already on its way. morestack will, as there is no preemption request, double the stack unnecessarily. If this happens multiple times, the stack may grow too big, although only a small amount is actually used. To fix this, we mark the stack bounds check and the call to morestack async-nonpreemptible, starting after the memory instruction (mostly a load, on x86 CMP with memory). Not done for Wasm as it does not support async preemption. Fixes #35470. Change-Id: Ibd7f3d935a3649b80f47539116ec9b9556680cf2 Reviewed-on: https://go-review.googlesource.com/c/go/+/207350 Reviewed-by: David Chase <drchase@google.com>
2019-11-14 20:23:17 -05:00
// Mark the stack bound check and morestack call async nonpreemptible.
// If we get preempted here, when resumed the preemption request is
// cleared, but we'll still call morestack, which will double the stack
// unnecessarily. See issue #35470.
p = c.ctxt.StartUnsafePoint(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
var q *obj.Prog
cmd/internal/objabi: extract shared functionality from obj Now only cmd/asm and cmd/compile depend on cmd/internal/obj. Changing the assembler backends no longer requires reinstalling cmd/link or cmd/addr2line. There's also now one canonical definition of the object file format in cmd/internal/objabi/doc.go, with a warning to update all three implementations. objabi is still something of a grab bag of unrelated code (e.g., flag and environment variable handling probably belong in a separate "tool" package), but this is still progress. Fixes #15165. Fixes #20026. Change-Id: Ic4b92fac7d0d35438e0d20c9579aad4085c5534c Reviewed-on: https://go-review.googlesource.com/40972 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-04-18 12:53:25 -07:00
if framesize <= objabi.StackSmall {
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
// small stack: SP < stackguard
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// AGTU SP, stackguard, R1
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = ASGTU
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.From.Reg = REGSP
p.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.To.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
} else {
cmd/internal/obj/mips: simplify huge frame prologue CL 307010 for mips. Change-Id: Ie9addea728548315fdbb8e46f75da4010a9796bb Reviewed-on: https://go-review.googlesource.com/c/go/+/307051 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-04-02 17:20:15 -04:00
// large stack: SP-framesize < stackguard-StackSmall
offset := int64(framesize) - objabi.StackSmall
if framesize > objabi.StackBig {
// Such a large stack we need to protect against underflow.
// The runtime guarantees SP > objabi.StackBig, but
// framesize is large enough that SP-framesize may
// underflow, causing a direct comparison with the
// stack guard to incorrectly succeed. We explicitly
// guard against underflow.
//
// SGTU $(framesize-StackSmall), SP, R2
// BNE R2, label-of-call-to-morestack
p = obj.Appendp(p, c.newprog)
p.As = ASGTU
p.From.Type = obj.TYPE_CONST
p.From.Offset = offset
p.Reg = REGSP
p.To.Type = obj.TYPE_REG
p.To.Reg = REG_R2
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: simplify huge frame prologue CL 307010 for mips. Change-Id: Ie9addea728548315fdbb8e46f75da4010a9796bb Reviewed-on: https://go-review.googlesource.com/c/go/+/307051 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-04-02 17:20:15 -04:00
p = obj.Appendp(p, c.newprog)
q = p
p.As = ABNE
p.From.Type = obj.TYPE_REG
p.From.Reg = REG_R2
p.To.Type = obj.TYPE_BRANCH
p.Mark |= BRANCH
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: simplify huge frame prologue CL 307010 for mips. Change-Id: Ie9addea728548315fdbb8e46f75da4010a9796bb Reviewed-on: https://go-review.googlesource.com/c/go/+/307051 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-04-02 17:20:15 -04:00
// Check against the stack guard. We've ensured this won't underflow.
// ADD $-(framesize-StackSmall), SP, R2
// SGTU R2, stackguard, R1
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.As = add
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_CONST
cmd/internal/obj/mips: simplify huge frame prologue CL 307010 for mips. Change-Id: Ie9addea728548315fdbb8e46f75da4010a9796bb Reviewed-on: https://go-review.googlesource.com/c/go/+/307051 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-04-02 17:20:15 -04:00
p.From.Offset = -offset
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.Reg = REGSP
p.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.To.Reg = REG_R2
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = ASGTU
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.From.Reg = REG_R2
p.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.To.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// q1: BNE R1, done
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
q1 := p
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = ABNE
p.From.Type = obj.TYPE_REG
p.From.Reg = REG_R1
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.To.Type = obj.TYPE_BRANCH
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.Mark |= BRANCH
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
// MOV LINK, R3
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
p.As = mov
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.From.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.From.Reg = REGLINK
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.To.Type = obj.TYPE_REG
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.To.Reg = REG_R3
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
if q != nil {
cmd/compile,cmd/asm: simplify recording of branch targets, take 2 We currently use two fields to store the targets of branches. Some phases use p.To.Val, some use p.Pcond. Rewrite so that every branch instruction uses p.To.Val. p.From.Val is also used in rare instances. Introduce a Pool link for use by arm/arm64, instead of repurposing Pcond. This is a cleanup CL in preparation for some stack frame CLs. Change-Id: If8239177e4b1ea2bccd0608eb39553d23210d405 Reviewed-on: https://go-review.googlesource.com/c/go/+/251437 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-08-28 17:10:32 +00:00
q.To.SetTarget(p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.Mark |= LABEL
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj: mark split-stack prologue nonpreemptible When there are both a synchronous preemption request (by clobbering the stack guard) and an asynchronous one (by signal), the running goroutine may observe the synchronous request first in stack bounds check, and go to the path of calling morestack. If the preemption signal arrives at this point before the call to morestack, the goroutine will be asynchronously preempted, entering the scheduler. When it is resumed, the scheduler clears the preemption request, unclobbers the stack guard. But the resumed goroutine will still call morestack, as it is already on its way. morestack will, as there is no preemption request, double the stack unnecessarily. If this happens multiple times, the stack may grow too big, although only a small amount is actually used. To fix this, we mark the stack bounds check and the call to morestack async-nonpreemptible, starting after the memory instruction (mostly a load, on x86 CMP with memory). Not done for Wasm as it does not support async preemption. Fixes #35470. Change-Id: Ibd7f3d935a3649b80f47539116ec9b9556680cf2 Reviewed-on: https://go-review.googlesource.com/c/go/+/207350 Reviewed-by: David Chase <drchase@google.com>
2019-11-14 20:23:17 -05:00
p = c.ctxt.EmitEntryStackMap(c.cursym, p, c.newprog)
cmd/internal/obj: consolidate emitting entry stack map The obj package needs to emit the PCDATA to select the entry stack map before calling morestack. Currently this is copied for every architecture. Since we're about to change how this works, consolidate all of these copies into a single helper function. For #24543. Change-Id: Ia92d94de78f8e23fd06dba747c43e03e5989f67b Reviewed-on: https://go-review.googlesource.com/109346 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2018-04-21 21:13:56 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// JAL runtime.morestack(SB)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = AJAL
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.To.Type = obj.TYPE_BRANCH
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.cursym.CFunc() {
cmd/internal/obj: eliminate LSym.Version There were only two versions, 0 and 1, and the only user of version 1 was the assembler, to indicate that a symbol was static. Rename LSym.Version to Static, and add it to LSym.Attributes. Simplify call-sites. Passes toolstash-check. Change-Id: Iabd39918f5019cce78f381d13f0481ae09f3871f Reviewed-on: https://go-review.googlesource.com/41201 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-04-20 07:13:02 -07:00
p.To.Sym = c.ctxt.Lookup("runtime.morestackc")
cmd/internal/obj: move LSym.Func into LSym.Extra This creates space for a different kind of extension field in LSym without making the struct any larger. (There are many LSym, so we care about keeping the struct small.) Change-Id: Ib16edb9e15f54c2a7351c8b875e19684058711e5 Reviewed-on: https://go-review.googlesource.com/c/go/+/243943 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-07-19 00:30:12 -04:00
} else if !c.cursym.Func().Text.From.Sym.NeedCtxt() {
cmd/internal/obj: eliminate LSym.Version There were only two versions, 0 and 1, and the only user of version 1 was the assembler, to indicate that a symbol was static. Rename LSym.Version to Static, and add it to LSym.Attributes. Simplify call-sites. Passes toolstash-check. Change-Id: Iabd39918f5019cce78f381d13f0481ae09f3871f Reviewed-on: https://go-review.googlesource.com/41201 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-04-20 07:13:02 -07:00
p.To.Sym = c.ctxt.Lookup("runtime.morestack_noctxt")
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
} else {
cmd/internal/obj: eliminate LSym.Version There were only two versions, 0 and 1, and the only user of version 1 was the assembler, to indicate that a symbol was static. Rename LSym.Version to Static, and add it to LSym.Attributes. Simplify call-sites. Passes toolstash-check. Change-Id: Iabd39918f5019cce78f381d13f0481ae09f3871f Reviewed-on: https://go-review.googlesource.com/41201 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-04-20 07:13:02 -07:00
p.To.Sym = c.ctxt.Lookup("runtime.morestack")
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.Mark |= BRANCH
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj: mark split-stack prologue nonpreemptible When there are both a synchronous preemption request (by clobbering the stack guard) and an asynchronous one (by signal), the running goroutine may observe the synchronous request first in stack bounds check, and go to the path of calling morestack. If the preemption signal arrives at this point before the call to morestack, the goroutine will be asynchronously preempted, entering the scheduler. When it is resumed, the scheduler clears the preemption request, unclobbers the stack guard. But the resumed goroutine will still call morestack, as it is already on its way. morestack will, as there is no preemption request, double the stack unnecessarily. If this happens multiple times, the stack may grow too big, although only a small amount is actually used. To fix this, we mark the stack bounds check and the call to morestack async-nonpreemptible, starting after the memory instruction (mostly a load, on x86 CMP with memory). Not done for Wasm as it does not support async preemption. Fixes #35470. Change-Id: Ibd7f3d935a3649b80f47539116ec9b9556680cf2 Reviewed-on: https://go-review.googlesource.com/c/go/+/207350 Reviewed-by: David Chase <drchase@google.com>
2019-11-14 20:23:17 -05:00
p = c.ctxt.EndUnsafePoint(p, c.newprog, -1)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
// JMP start
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.As = AJMP
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.To.Type = obj.TYPE_BRANCH
cmd/{asm,compile,internal/obj}: add "maymorestack" support This adds a debugging hook for optionally calling a "maymorestack" function in the prologue of any function that might call morestack (whether it does at run time or not). The maymorestack function will let us improve lock checking and add debugging modes that stress function preemption and stack growth. Passes toolstash-check -all (except on js/wasm, where toolstash appears to be broken) Fixes #48297. Change-Id: I27197947482b329af75dafb9971fc0d3a52eaf31 Reviewed-on: https://go-review.googlesource.com/c/go/+/359795 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
2019-08-20 17:39:09 -04:00
p.To.SetTarget(startPred.Link)
startPred.Link.Mark |= LABEL
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p.Mark |= BRANCH
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
// placeholder for q1's jump target
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
p = obj.Appendp(p, c.newprog)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
p.As = obj.ANOP // zero-width place holder
cmd/compile,cmd/asm: simplify recording of branch targets, take 2 We currently use two fields to store the targets of branches. Some phases use p.To.Val, some use p.Pcond. Rewrite so that every branch instruction uses p.To.Val. p.From.Val is also used in rare instances. Introduce a Pool link for use by arm/arm64, instead of repurposing Pcond. This is a cleanup CL in preparation for some stack frame CLs. Change-Id: If8239177e4b1ea2bccd0608eb39553d23210d405 Reviewed-on: https://go-review.googlesource.com/c/go/+/251437 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2020-08-28 17:10:32 +00:00
q1.To.SetTarget(p)
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
return p
}
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
func (c *ctxt0) addnop(p *obj.Prog) {
q := c.newprog()
cmd/internal/obj/mips: add support of LLV, SCV, NOOP instructions LLV and SCV are 64-bit load-linked and store-conditional. They were used in runtime as #define WORD. Change them to normal instruction form. NOOP is hardware no-op. It was written as WORD $0. Make a name for it for better disassembly output. Fixes #12561. Fixes #18238. Change-Id: I82c667ce756fa83ef37b034b641e8c4366335e83 Reviewed-on: https://go-review.googlesource.com/40297 Reviewed-by: Minux Ma <minux@golang.org> Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-04-11 10:39:55 -04:00
q.As = ANOOP
[dev.inline] cmd/internal/obj: rename Prog.Lineno to Prog.Pos Change-Id: I7585d85907869f5a286b36936dfd035f1e8e9906 Reviewed-on: https://go-review.googlesource.com/34197 Run-TryBot: David Lazar <lazard@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com>
2016-12-09 14:30:40 -05:00
q.Pos = p.Pos
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
q.Link = p.Link
p.Link = q
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
const (
E_HILO = 1 << 0
E_FCR = 1 << 1
E_MCR = 1 << 2
E_MEM = 1 << 3
E_MEMSP = 1 << 4 /* uses offset and size */
E_MEMSB = 1 << 5 /* uses offset and size */
ANYMEM = E_MEM | E_MEMSP | E_MEMSB
//DELAY = LOAD|BRANCH|FCMP
DELAY = BRANCH /* only schedule branch */
)
type Dep struct {
ireg uint32
freg uint32
cc uint32
}
type Sch struct {
p obj.Prog
set Dep
used Dep
soffset int32
size uint8
nop uint8
comp bool
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
func (c *ctxt0) sched(p0, pe *obj.Prog) {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
var sch [NSCHED]Sch
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
/*
* build side structure
*/
s := sch[:]
for p := p0; ; p = p.Link {
s[0].p = *p
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.markregused(&s[0])
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if p == pe {
break
}
s = s[1:]
}
se := s
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
for i := cap(sch) - cap(se); i >= 0; i-- {
s = sch[i:]
if s[0].p.Mark&DELAY == 0 {
continue
}
if -cap(s) < -cap(se) {
if !conflict(&s[0], &s[1]) {
continue
}
}
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
var t []Sch
var j int
for j = cap(sch) - cap(s) - 1; j >= 0; j-- {
t = sch[j:]
if t[0].comp {
if s[0].p.Mark&BRANCH != 0 {
cmd: remove some unnecessary gotos Pick the low-hanging fruit, which are the gotos that don't go very far and labels that aren't used often. All of them have easy replacements with breaks and returns. One slightly tricky rewrite is defaultlitreuse. We cannot use a defer func to reset lineno, because one of its return paths does not reset lineno, and thus broke toolstash -cmp. Passes toolstash -cmp on std cmd. Change-Id: Id1c0967868d69bb073addc7c5c3017ca91ff966f Reviewed-on: https://go-review.googlesource.com/110063 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2018-04-29 22:17:23 +09:00
continue
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
}
if t[0].p.Mark&DELAY != 0 {
if -cap(s) >= -cap(se) || conflict(&t[0], &s[1]) {
cmd: remove some unnecessary gotos Pick the low-hanging fruit, which are the gotos that don't go very far and labels that aren't used often. All of them have easy replacements with breaks and returns. One slightly tricky rewrite is defaultlitreuse. We cannot use a defer func to reset lineno, because one of its return paths does not reset lineno, and thus broke toolstash -cmp. Passes toolstash -cmp on std cmd. Change-Id: Id1c0967868d69bb073addc7c5c3017ca91ff966f Reviewed-on: https://go-review.googlesource.com/110063 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2018-04-29 22:17:23 +09:00
continue
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
}
for u := t[1:]; -cap(u) <= -cap(s); u = u[1:] {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.depend(&u[0], &t[0]) {
cmd: remove some unnecessary gotos Pick the low-hanging fruit, which are the gotos that don't go very far and labels that aren't used often. All of them have easy replacements with breaks and returns. One slightly tricky rewrite is defaultlitreuse. We cannot use a defer func to reset lineno, because one of its return paths does not reset lineno, and thus broke toolstash -cmp. Passes toolstash -cmp on std cmd. Change-Id: Id1c0967868d69bb073addc7c5c3017ca91ff966f Reviewed-on: https://go-review.googlesource.com/110063 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2018-04-29 22:17:23 +09:00
continue
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
}
goto out2
}
if s[0].p.Mark&BRANCH != 0 {
s[0].nop = 1
}
continue
out2:
// t[0] is the instruction being moved to fill the delay
stmp := t[0]
copy(t[:i-j], t[1:i-j+1])
s[0] = stmp
if t[i-j-1].p.Mark&BRANCH != 0 {
// t[i-j] is being put into a branch delay slot
// combine its Spadj with the branch instruction
t[i-j-1].p.Spadj += t[i-j].p.Spadj
t[i-j].p.Spadj = 0
}
i--
}
/*
* put it all back
*/
var p *obj.Prog
var q *obj.Prog
for s, p = sch[:], p0; -cap(s) <= -cap(se); s, p = s[1:], q {
q = p.Link
if q != s[0].p.Link {
*p = s[0].p
p.Link = q
}
for s[0].nop != 0 {
s[0].nop--
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.addnop(p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
}
}
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
func (c *ctxt0) markregused(s *Sch) {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
p := &s.p
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.comp = c.compound(p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
s.nop = 0
if s.comp {
s.set.ireg |= 1 << (REGTMP - REG_R0)
s.used.ireg |= 1 << (REGTMP - REG_R0)
}
ar := 0 /* dest is really reference */
ad := 0 /* source/dest is really address */
ld := 0 /* opcode is load instruction */
sz := 20 /* size of load/store for overlap computation */
/*
* flags based on opcode
*/
switch p.As {
case obj.ATEXT:
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
c.autosize = int32(p.To.Offset + 8)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
ad = 1
case AJAL:
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
r := p.Reg
if r == 0 {
r = REGLINK
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
s.set.ireg |= 1 << uint(r-REG_R0)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
ar = 1
ad = 1
case ABGEZAL,
ABLTZAL:
s.set.ireg |= 1 << (REGLINK - REG_R0)
fallthrough
case ABEQ,
ABGEZ,
ABGTZ,
ABLEZ,
ABLTZ,
ABNE:
ar = 1
ad = 1
case ABFPT,
ABFPF:
ad = 1
s.used.cc |= E_FCR
case ACMPEQD,
ACMPEQF,
ACMPGED,
ACMPGEF,
ACMPGTD,
ACMPGTF:
ar = 1
s.set.cc |= E_FCR
p.Mark |= FCMP
case AJMP:
ar = 1
ad = 1
case AMOVB,
AMOVBU:
sz = 1
ld = 1
case AMOVH,
AMOVHU:
sz = 2
ld = 1
case AMOVF,
AMOVW,
AMOVWL,
AMOVWR:
sz = 4
ld = 1
case AMOVD,
AMOVV,
AMOVVL,
AMOVVR:
sz = 8
ld = 1
case ADIV,
ADIVU,
AMUL,
AMULU,
AREM,
AREMU,
ADIVV,
ADIVVU,
AMULV,
AMULVU,
AREMV,
AREMVU:
s.set.cc = E_HILO
fallthrough
case AADD,
AADDU,
AADDV,
AADDVU,
AAND,
ANOR,
AOR,
ASGT,
ASGTU,
ASLL,
ASRA,
ASRL,
ASLLV,
ASRAV,
ASRLV,
ASUB,
ASUBU,
ASUBV,
ASUBVU,
AXOR,
AADDD,
AADDF,
AADDW,
ASUBD,
ASUBF,
ASUBW,
AMULF,
AMULD,
AMULW,
ADIVF,
ADIVD,
ADIVW:
if p.Reg == 0 {
if p.To.Type == obj.TYPE_REG {
p.Reg = p.To.Reg
}
//if(p->reg == NREG)
// print("botch %P\n", p);
}
}
/*
* flags based on 'to' field
*/
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls := int(p.To.Class)
if cls == 0 {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
cls = c.aclass(&p.To) + 1
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
p.To.Class = int8(cls)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls--
switch cls {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
default:
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
fmt.Printf("unknown class %d %v\n", cls, p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case C_ZCON,
C_SCON,
C_ADD0CON,
C_AND0CON,
C_ADDCON,
C_ANDCON,
C_UCON,
C_LCON,
C_NONE,
C_SBRA,
C_LBRA,
C_ADDR,
C_TEXTSIZE:
break
case C_HI,
C_LO:
s.set.cc |= E_HILO
case C_FCREG:
s.set.cc |= E_FCR
case C_MREG:
s.set.cc |= E_MCR
case C_ZOREG,
C_SOREG,
C_LOREG:
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls = int(p.To.Reg)
s.used.ireg |= 1 << uint(cls-REG_R0)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if ad != 0 {
break
}
s.size = uint8(sz)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.soffset = c.regoff(&p.To)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
m := uint32(ANYMEM)
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
if cls == REGSB {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
m = E_MEMSB
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
if cls == REGSP {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
m = E_MEMSP
}
if ar != 0 {
s.used.cc |= m
} else {
s.set.cc |= m
}
case C_SACON,
C_LACON:
s.used.ireg |= 1 << (REGSP - REG_R0)
case C_SECON,
C_LECON:
s.used.ireg |= 1 << (REGSB - REG_R0)
case C_REG:
if ar != 0 {
s.used.ireg |= 1 << uint(p.To.Reg-REG_R0)
} else {
s.set.ireg |= 1 << uint(p.To.Reg-REG_R0)
}
case C_FREG:
if ar != 0 {
s.used.freg |= 1 << uint(p.To.Reg-REG_F0)
} else {
s.set.freg |= 1 << uint(p.To.Reg-REG_F0)
}
if ld != 0 && p.From.Type == obj.TYPE_REG {
p.Mark |= LOAD
}
case C_SAUTO,
C_LAUTO:
s.used.ireg |= 1 << (REGSP - REG_R0)
if ad != 0 {
break
}
s.size = uint8(sz)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.soffset = c.regoff(&p.To)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if ar != 0 {
s.used.cc |= E_MEMSP
} else {
s.set.cc |= E_MEMSP
}
case C_SEXT,
C_LEXT:
s.used.ireg |= 1 << (REGSB - REG_R0)
if ad != 0 {
break
}
s.size = uint8(sz)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.soffset = c.regoff(&p.To)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if ar != 0 {
s.used.cc |= E_MEMSB
} else {
s.set.cc |= E_MEMSB
}
}
/*
* flags based on 'from' field
*/
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls = int(p.From.Class)
if cls == 0 {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
cls = c.aclass(&p.From) + 1
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
p.From.Class = int8(cls)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls--
switch cls {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
default:
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
fmt.Printf("unknown class %d %v\n", cls, p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case C_ZCON,
C_SCON,
C_ADD0CON,
C_AND0CON,
C_ADDCON,
C_ANDCON,
C_UCON,
C_LCON,
C_NONE,
C_SBRA,
C_LBRA,
C_ADDR,
C_TEXTSIZE:
break
case C_HI,
C_LO:
s.used.cc |= E_HILO
case C_FCREG:
s.used.cc |= E_FCR
case C_MREG:
s.used.cc |= E_MCR
case C_ZOREG,
C_SOREG,
C_LOREG:
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls = int(p.From.Reg)
s.used.ireg |= 1 << uint(cls-REG_R0)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if ld != 0 {
p.Mark |= LOAD
}
s.size = uint8(sz)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.soffset = c.regoff(&p.From)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
m := uint32(ANYMEM)
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
if cls == REGSB {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
m = E_MEMSB
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
if cls == REGSP {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
m = E_MEMSP
}
s.used.cc |= m
case C_SACON,
C_LACON:
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls = int(p.From.Reg)
if cls == 0 {
cls = REGSP
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
s.used.ireg |= 1 << uint(cls-REG_R0)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
case C_SECON,
C_LECON:
s.used.ireg |= 1 << (REGSB - REG_R0)
case C_REG:
s.used.ireg |= 1 << uint(p.From.Reg-REG_R0)
case C_FREG:
s.used.freg |= 1 << uint(p.From.Reg-REG_F0)
if ld != 0 && p.To.Type == obj.TYPE_REG {
p.Mark |= LOAD
}
case C_SAUTO,
C_LAUTO:
s.used.ireg |= 1 << (REGSP - REG_R0)
if ld != 0 {
p.Mark |= LOAD
}
if ad != 0 {
break
}
s.size = uint8(sz)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.soffset = c.regoff(&p.From)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
s.used.cc |= E_MEMSP
case C_SEXT:
case C_LEXT:
s.used.ireg |= 1 << (REGSB - REG_R0)
if ld != 0 {
p.Mark |= LOAD
}
if ad != 0 {
break
}
s.size = uint8(sz)
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
s.soffset = c.regoff(&p.From)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
s.used.cc |= E_MEMSB
}
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
cls = int(p.Reg)
if cls != 0 {
if REG_F0 <= cls && cls <= REG_F31 {
s.used.freg |= 1 << uint(cls-REG_F0)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
} else {
cmd/internal/obj: rename some local variables not c I plan to use c as a consistent local variable in this packages. Rename most variables named c, excepting only some simple functions in asm9.go. Changes prepared with gorename. Passes toolstash-check -all. Updates #15756 Change-Id: If79baac43fca68fad1076e1ff23ae87c2ba638e4 Reviewed-on: https://go-review.googlesource.com/40172 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2017-04-10 07:31:23 -07:00
s.used.ireg |= 1 << uint(cls-REG_R0)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
}
all: fix spelling mistakes Signed-off-by: Eric Engestrom <eric@engestrom.ch> Change-Id: I91873aaebf79bdf1c00d38aacc1a1fb8d79656a7 Reviewed-on: https://go-review.googlesource.com/21433 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-03 12:43:27 +01:00
s.set.ireg &^= (1 << (REGZERO - REG_R0)) /* R0 can't be set */
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
}
/*
all: fix typos and spelling Change-Id: Icd06d99c42b8299fd931c7da821e1f418684d913 Reviewed-on: https://go-review.googlesource.com/19829 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-02-24 11:55:20 +01:00
* test to see if two instructions can be
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
* interchanged without changing semantics
*/
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
func (c *ctxt0) depend(sa, sb *Sch) bool {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if sa.set.ireg&(sb.set.ireg|sb.used.ireg) != 0 {
return true
}
if sb.set.ireg&sa.used.ireg != 0 {
return true
}
if sa.set.freg&(sb.set.freg|sb.used.freg) != 0 {
return true
}
if sb.set.freg&sa.used.freg != 0 {
return true
}
/*
* special case.
* loads from same address cannot pass.
* this is for hardware fifo's and the like
*/
if sa.used.cc&sb.used.cc&E_MEM != 0 {
if sa.p.Reg == sb.p.Reg {
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
if c.regoff(&sa.p.From) == c.regoff(&sb.p.From) {
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
return true
}
}
}
x := (sa.set.cc & (sb.set.cc | sb.used.cc)) | (sb.set.cc & sa.used.cc)
if x != 0 {
/*
* allow SB and SP to pass each other.
* allow SB to pass SB iff doffsets are ok
* anything else conflicts
*/
if x != E_MEMSP && x != E_MEMSB {
return true
}
x = sa.set.cc | sb.set.cc | sa.used.cc | sb.used.cc
if x&E_MEM != 0 {
return true
}
if offoverlap(sa, sb) {
return true
}
}
return false
}
func offoverlap(sa, sb *Sch) bool {
if sa.soffset < sb.soffset {
if sa.soffset+int32(sa.size) > sb.soffset {
return true
}
return false
}
if sb.soffset+int32(sb.size) > sa.soffset {
return true
}
return false
}
/*
* test 2 adjacent instructions
* and find out if inserted instructions
* are desired to prevent stalls.
*/
func conflict(sa, sb *Sch) bool {
if sa.set.ireg&sb.used.ireg != 0 {
return true
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if sa.set.freg&sb.used.freg != 0 {
return true
}
if sa.set.cc&sb.used.cc != 0 {
return true
}
return false
}
cmd/internal/obj/mips: make assembler almost concurrency-safe CL 39922 made the arm assembler concurrency-safe. This CL does the same, but for mips. The approach is similar: introduce ctxt0 to hold function-local state and thread it through the assembler as necessary. One race remains after this CL, similar to CL 40252. That race is conceptually unrelated to this refactoring, and will be addressed in a separate CL. Passes toolstash-check -all. Updates #15756 Change-Id: I2c54a889aa448a4476c9a75da4dd94ef69657b16 Reviewed-on: https://go-review.googlesource.com/40370 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2017-04-10 14:15:57 -07:00
func (c *ctxt0) compound(p *obj.Prog) bool {
o := c.oplook(p)
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
if o.size != 4 {
return true
}
if p.To.Type == obj.TYPE_REG && p.To.Reg == REGSB {
return true
}
return false
}
var Linkmips64 = obj.LinkArch{
cmd/compile: add DWARF reg defs & fix 32-bit location list bug Before DWARF location lists can be turned on, 3 bugs need fixing. This CL addresses two -- lack of register definitions for various architectures, and bugs on 32-bit platforms. The third bug comes later. Passes GO_GCFLAGS=-dwarflocationlists ./run.bash -no-rebuild (-no-rebuild because the map dependence causes trouble) Change-Id: I4223b48ade84763e4b048e4aeb81149f082c7bc7 Reviewed-on: https://go-review.googlesource.com/99255 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-03-07 16:21:47 -05:00
Arch: sys.ArchMIPS64,
Init: buildop,
Preprocess: preprocess,
Assemble: span0,
Progedit: progedit,
DWARFRegisters: MIPSDWARFRegisters,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: added support for GOARCH=mips64{,le} MIPS64 has 32 general purpose 64-bit integer registers (R0-R31), 32 64-bit floating point registers (F0-F31). Instructions are fixed-width, and are 32-bit wide. Instructions are all in standard 1-, 2-, 3-operand forms. MIPS64-specific relocations are added. For this reason, test data of cmd/newlink are regenerated. No other changes are made to portable structures. Branch delay slots are current filled with NOP instructions. The function for instruction scheduling (try to fill the delay slot with a useful instruction) is implemented but disabled for now. Change-Id: Ic364999c7a33245260c1381fc26a2fa8972d38b3 Reviewed-on: https://go-review.googlesource.com/14442 Reviewed-by: Minux Ma <minux@golang.org>
2015-09-10 11:13:00 -04:00
var Linkmips64le = obj.LinkArch{
cmd/compile: add DWARF reg defs & fix 32-bit location list bug Before DWARF location lists can be turned on, 3 bugs need fixing. This CL addresses two -- lack of register definitions for various architectures, and bugs on 32-bit platforms. The third bug comes later. Passes GO_GCFLAGS=-dwarflocationlists ./run.bash -no-rebuild (-no-rebuild because the map dependence causes trouble) Change-Id: I4223b48ade84763e4b048e4aeb81149f082c7bc7 Reviewed-on: https://go-review.googlesource.com/99255 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-03-07 16:21:47 -05:00
Arch: sys.ArchMIPS64LE,
Init: buildop,
Preprocess: preprocess,
Assemble: span0,
Progedit: progedit,
DWARFRegisters: MIPSDWARFRegisters,
cmd/internal/obj/mips: copy cmd/internal/obj/ppc64 Just a mechanical copy with filename renames, no code changes. This is to reduce code difference when adding the mips64 port. Change-Id: Id06e975f414a7b09f4827167b30813b228a3bfae Reviewed-on: https://go-review.googlesource.com/14323 Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-09-05 20:27:00 -04:00
}
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
var Linkmips = obj.LinkArch{
cmd/compile: add DWARF reg defs & fix 32-bit location list bug Before DWARF location lists can be turned on, 3 bugs need fixing. This CL addresses two -- lack of register definitions for various architectures, and bugs on 32-bit platforms. The third bug comes later. Passes GO_GCFLAGS=-dwarflocationlists ./run.bash -no-rebuild (-no-rebuild because the map dependence causes trouble) Change-Id: I4223b48ade84763e4b048e4aeb81149f082c7bc7 Reviewed-on: https://go-review.googlesource.com/99255 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-03-07 16:21:47 -05:00
Arch: sys.ArchMIPS,
Init: buildop,
Preprocess: preprocess,
Assemble: span0,
Progedit: progedit,
DWARFRegisters: MIPSDWARFRegisters,
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
}
var Linkmipsle = obj.LinkArch{
cmd/compile: add DWARF reg defs & fix 32-bit location list bug Before DWARF location lists can be turned on, 3 bugs need fixing. This CL addresses two -- lack of register definitions for various architectures, and bugs on 32-bit platforms. The third bug comes later. Passes GO_GCFLAGS=-dwarflocationlists ./run.bash -no-rebuild (-no-rebuild because the map dependence causes trouble) Change-Id: I4223b48ade84763e4b048e4aeb81149f082c7bc7 Reviewed-on: https://go-review.googlesource.com/99255 Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-03-07 16:21:47 -05:00
Arch: sys.ArchMIPSLE,
Init: buildop,
Preprocess: preprocess,
Assemble: span0,
Progedit: progedit,
DWARFRegisters: MIPSDWARFRegisters,
cmd/internal/obj/mips: add support for GOARCH=mips{,le} Implements subset of MIPS32(r1) instruction set. Change-Id: Iba017350f6c2763de05d4d1bc2f123e8eb76d0ff Reviewed-on: https://go-review.googlesource.com/31475 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-10-18 23:50:37 +02:00
}
Reference in a new issue Copy permalink