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go/src/cmd/compile/internal/x86/galign.go

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[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
cmd/compile, cmd/link: create from 5g, 5l, etc Trivial merging of 5g, 6g, ... into go tool compile, and similarlly 5l, 6l, ... into go tool link. The files compile/main.go and link/main.go are new. Everything else in those directories is a move followed by change of imports and package name. This CL breaks the build. Manual fixups are in the next CL. See golang-dev thread titled "go tool compile, etc" for background. Change-Id: Id35ff5a5859ad9037c61275d637b1bd51df6828b Reviewed-on: https://go-review.googlesource.com/10287 Reviewed-by: Dave Cheney <dave@cheney.net> Reviewed-by: Rob Pike <r@golang.org>
2015-05-21 13:28:10 -04:00
package x86
[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
import (
cmd/compile, cmd/link: create from 5g, 5l, etc Trivial merging of 5g, 6g, ... into go tool compile, and similarlly 5l, 6l, ... into go tool link. The files compile/main.go and link/main.go are new. Everything else in those directories is a move followed by change of imports and package name. This CL breaks the build. Manual fixups are in the next CL. See golang-dev thread titled "go tool compile, etc" for background. Change-Id: Id35ff5a5859ad9037c61275d637b1bd51df6828b Reviewed-on: https://go-review.googlesource.com/10287 Reviewed-by: Dave Cheney <dave@cheney.net> Reviewed-by: Rob Pike <r@golang.org>
2015-05-21 13:28:10 -04:00
"cmd/compile/internal/gc"
[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
"cmd/internal/obj"
cmd/8g, cmd/old8a: stop renaming x86 import to i386 Change-Id: If2872e73da4daa4ff1912883d30c8fc9754ef552 Reviewed-on: https://go-review.googlesource.com/6894 Reviewed-by: Rob Pike <r@golang.org>
2015-03-04 22:58:27 -05:00
"cmd/internal/obj/x86"
cmd/8g: don't call gc.Fatal during initalisation Fixes #10592 Calling gc.Fatal before gc.Main has been called ends up flushing gc.bstdout before it is properly set up. Ideally obj.Bflush would handle this case, but that type and its callers are rather convoluted, so take the simpler route and avoid calling gc.Fatal altogether. Change-Id: I338b469e86edba558b6bedff35bb904bfc3d6990 Reviewed-on: https://go-review.googlesource.com/9525 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net> Run-TryBot: Dave Cheney <dave@cheney.net> TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-05-01 10:15:33 +10:00
"fmt"
"os"
[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
)
func betypeinit() {
}
cmd/compile, cmd/link: create from 5g, 5l, etc Trivial merging of 5g, 6g, ... into go tool compile, and similarlly 5l, 6l, ... into go tool link. The files compile/main.go and link/main.go are new. Everything else in those directories is a move followed by change of imports and package name. This CL breaks the build. Manual fixups are in the next CL. See golang-dev thread titled "go tool compile, etc" for background. Change-Id: Id35ff5a5859ad9037c61275d637b1bd51df6828b Reviewed-on: https://go-review.googlesource.com/10287 Reviewed-by: Dave Cheney <dave@cheney.net> Reviewed-by: Rob Pike <r@golang.org>
2015-05-21 13:28:10 -04:00
func Main() {
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
gc.Thearch.LinkArch = &x86.Link386
cmd/8g, cmd/old8a: stop renaming x86 import to i386 Change-Id: If2872e73da4daa4ff1912883d30c8fc9754ef552 Reviewed-on: https://go-review.googlesource.com/6894 Reviewed-by: Rob Pike <r@golang.org>
2015-03-04 22:58:27 -05:00
gc.Thearch.REGSP = x86.REGSP
gc.Thearch.REGCTXT = x86.REGCTXT
cmd/internal/gc: move cgen, regalloc, et al to portable code This CL moves the bulk of the code that has been copy-and-pasted since the initial 386 port back into a shared place, cutting 5 copies to 1. The motivation here is not cleanup per se but instead to reduce the cost of introducing changes in shared concepts like regalloc or general expression evaluation. For example, a change after this one will implement x.(*T) without a call into the runtime. This CL makes that followup work 5x easier. The single copy still has more special cases for architecture details than I'd like, but having them called out explicitly like this at least opens the door to generalizing the conditions and smoothing out the distinctions in the future. This is a LARGE CL. I started by trying to pull in one function at a time in a sequence of CLs and it became clear that everything was so interrelated that it had to be moved as a whole. Apologies for the size. It is not clear how many more releases this code will matter for; eventually it will be replaced by Keith's SSA work. But as noted above, the deduplication was necessary to reduce the cost of working on the current code while we have it. Passes tests on amd64, 386, arm, and ppc64le. Can build arm64 binaries but not tested there. Being able to build binaries means it is probably very close. Change-Id: I735977f04c0614f80215fb12966dfe9bbd1f5861 Reviewed-on: https://go-review.googlesource.com/7853 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-03-18 17:26:36 -04:00
gc.Thearch.REGCALLX = x86.REG_BX
gc.Thearch.REGCALLX2 = x86.REG_AX
gc.Thearch.REGRETURN = x86.REG_AX
gc.Thearch.REGMIN = x86.REG_AX
gc.Thearch.REGMAX = x86.REG_DI
cmd: use obj.GOOS, obj.GOARCH, etc As cmd/internal/obj is coordinating the definition of GOOS, GOARCH, etc across the compiler and linker, turn its functions into globals and use them everywhere. Change-Id: I5db5addda3c6b6435c37fd5581c7c3d9a561f492 Reviewed-on: https://go-review.googlesource.com/28854 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2016-09-09 08:13:16 -04:00
switch v := obj.GO386; v {
cmd/8g, cmd/internal/gc: fix GO386=387 build Adjust Thearch.FREG_MIN/MAX when using non sse2 mode in 8g. Also, gc.Use_sse is treated as a bool, so make it a bool. Change-Id: I840411605344bb31c32f492b3e6729166c084f0c Reviewed-on: https://go-review.googlesource.com/7993 Reviewed-by: Aram Hăvărneanu <aram@mgk.ro> Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net> Run-TryBot: Dave Cheney <dave@cheney.net>
2015-03-24 22:16:48 +11:00
case "387":
gc.Thearch.FREGMIN = x86.REG_F0
gc.Thearch.FREGMAX = x86.REG_F7
cmd/8g, cmd/internal/gc: clean up GO386 handling This change cleans up some of the uglyness introduced in 8fc73a39efe1 by moving the gc.Use_sse into the gc.Arch struct and adjusting its zero value to be more useful. Change-Id: I26ff5d9ac57b3f25e936519e443de6583cdafa56 Reviewed-on: https://go-review.googlesource.com/7994 Reviewed-by: Russ Cox <rsc@golang.org>
2015-03-25 09:17:09 +11:00
gc.Thearch.Use387 = true
cmd/8g, cmd/internal/gc: fix GO386=387 build Adjust Thearch.FREG_MIN/MAX when using non sse2 mode in 8g. Also, gc.Use_sse is treated as a bool, so make it a bool. Change-Id: I840411605344bb31c32f492b3e6729166c084f0c Reviewed-on: https://go-review.googlesource.com/7993 Reviewed-by: Aram Hăvărneanu <aram@mgk.ro> Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net> Run-TryBot: Dave Cheney <dave@cheney.net>
2015-03-24 22:16:48 +11:00
case "sse2":
gc.Thearch.FREGMIN = x86.REG_X0
gc.Thearch.FREGMAX = x86.REG_X7
default:
cmd/8g: don't call gc.Fatal during initalisation Fixes #10592 Calling gc.Fatal before gc.Main has been called ends up flushing gc.bstdout before it is properly set up. Ideally obj.Bflush would handle this case, but that type and its callers are rather convoluted, so take the simpler route and avoid calling gc.Fatal altogether. Change-Id: I338b469e86edba558b6bedff35bb904bfc3d6990 Reviewed-on: https://go-review.googlesource.com/9525 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net> Run-TryBot: Dave Cheney <dave@cheney.net> TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-05-01 10:15:33 +10:00
fmt.Fprintf(os.Stderr, "unsupported setting GO386=%s\n", v)
cmd/internal/obj: clean up Biobuf This is a follow up to rev 443a32e707d2 which reduces some of the duplication between methods and functions that operate on obj.Biobuf. obj.Biobuf has Flush and Write methods as well as helpers which duplicate those methods, consolidate on the former and remove the latter. Also, address a final comment from CL 9525. Change-Id: I67deaf3a163bb489a9bb21bb39524785d7a2f6c5 Reviewed-on: https://go-review.googlesource.com/9527 Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2015-05-01 11:51:47 +10:00
gc.Exit(1)
cmd/8g, cmd/internal/gc: fix GO386=387 build Adjust Thearch.FREG_MIN/MAX when using non sse2 mode in 8g. Also, gc.Use_sse is treated as a bool, so make it a bool. Change-Id: I840411605344bb31c32f492b3e6729166c084f0c Reviewed-on: https://go-review.googlesource.com/7993 Reviewed-by: Aram Hăvărneanu <aram@mgk.ro> Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Dave Cheney <dave@cheney.net> Run-TryBot: Dave Cheney <dave@cheney.net>
2015-03-24 22:16:48 +11:00
}
cmd/compile/internal: clean up galign.go constants Move the C header style architecture constants to the per arch Main methods. Change-Id: Ie7ff39baa275ceaa6680e7d16441ca9f0aa12597 Reviewed-on: https://go-review.googlesource.com/20722 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Dave Cheney <dave@cheney.net> TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-03-15 15:55:47 +11:00
gc.Thearch.MAXWIDTH = (1 << 32) - 1
cmd/internal/gc: move cgen, regalloc, et al to portable code This CL moves the bulk of the code that has been copy-and-pasted since the initial 386 port back into a shared place, cutting 5 copies to 1. The motivation here is not cleanup per se but instead to reduce the cost of introducing changes in shared concepts like regalloc or general expression evaluation. For example, a change after this one will implement x.(*T) without a call into the runtime. This CL makes that followup work 5x easier. The single copy still has more special cases for architecture details than I'd like, but having them called out explicitly like this at least opens the door to generalizing the conditions and smoothing out the distinctions in the future. This is a LARGE CL. I started by trying to pull in one function at a time in a sequence of CLs and it became clear that everything was so interrelated that it had to be moved as a whole. Apologies for the size. It is not clear how many more releases this code will matter for; eventually it will be replaced by Keith's SSA work. But as noted above, the deduplication was necessary to reduce the cost of working on the current code while we have it. Passes tests on amd64, 386, arm, and ppc64le. Can build arm64 binaries but not tested there. Being able to build binaries means it is probably very close. Change-Id: I735977f04c0614f80215fb12966dfe9bbd1f5861 Reviewed-on: https://go-review.googlesource.com/7853 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-03-18 17:26:36 -04:00
gc.Thearch.ReservedRegs = resvd
[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
gc.Thearch.Betypeinit = betypeinit
gc.Thearch.Defframe = defframe
gc.Thearch.Proginfo = proginfo
[dev.ssa] cmd/compile: initial 386 SSA port Basically just copied all the amd64 files, removed all the *Q ops, and rebuilt. Compiles fib successfully. Still need to do: - all the 64->32 bit op translations. - audit for instructions that aren't available on 386. - GO386=387? Update #16358 Change-Id: Ib8c684586416a554a527a5eefa0cff71424e36f5 Reviewed-on: https://go-review.googlesource.com/24912 Reviewed-by: Cherry Zhang <cherryyz@google.com>
2016-07-13 13:43:08 -07:00
gc.Thearch.SSARegToReg = ssaRegToReg
gc.Thearch.SSAMarkMoves = ssaMarkMoves
gc.Thearch.SSAGenValue = ssaGenValue
gc.Thearch.SSAGenBlock = ssaGenBlock
[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
gc.Main()
[dev.cc] cmd/new6g, etc: reconvert to add profiling Converted from rsc.io/c2go rev a9bc7f2. Adds profiling support. Change-Id: Ie04f86b71e0713c7294416c77d349e0d93798403 Reviewed-on: https://go-review.googlesource.com/5574 Reviewed-by: Rob Pike <r@golang.org>
2015-02-23 10:22:26 -05:00
gc.Exit(0)
[dev.cc] cmd/internal/gc, cmd/new6g etc: convert from cmd/gc, cmd/6g etc First draft of converted Go compiler, using rsc.io/c2go rev 83d795a. Change-Id: I29f4c7010de07d2ff1947bbca9865879d83c32c3 Reviewed-on: https://go-review.googlesource.com/4851 Reviewed-by: Rob Pike <r@golang.org>
2015-02-13 14:40:36 -05:00
}
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