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go/src/cmd/compile/internal/arm/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 arm
[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: start on ARM port Start working on arm port. Gets close to correct code for fibonacci: func fib(n int) int { if n < 2 { return n } return fib(n-1) + fib(n-2) } Still a lot to do, but this is a good starting point. Cleaned up some arch-specific dependencies in regalloc. Change-Id: I4301c6c31a8402168e50dcfee8bcf7aee73ea9d5 Reviewed-on: https://go-review.googlesource.com/21000 Reviewed-by: David Chase <drchase@google.com>
2016-03-21 22:57:26 -07:00
"cmd/compile/internal/ssa"
[dev.regabi] cmd/compile: split out package ssagen [generated] [git-generate] cd src/cmd/compile/internal/gc rf ' # maxOpenDefers is declared in ssa.go but used only by walk. mv maxOpenDefers walk.go # gc.Arch -> ssagen.Arch # It is not as nice but will do for now. mv Arch ArchInfo mv thearch Arch mv Arch ArchInfo arch.go # Pull dwarf out of pgen.go. mv debuginfo declPos createDwarfVars preInliningDcls \ createSimpleVars createSimpleVar \ createComplexVars createComplexVar \ dwarf.go # Pull high-level compilation out of pgen.go, # leaving only the SSA code. mv compilequeue funccompile compile compilenow \ compileFunctions isInlinableButNotInlined \ initLSym \ compile.go mv BoundsCheckFunc GCWriteBarrierReg ssa.go mv largeStack largeStackFrames CheckLargeStacks pgen.go # All that is left in dcl.go is the nowritebarrierrecCheck mv dcl.go nowb.go # Export API and unexport non-API. mv initssaconfig InitConfig mv isIntrinsicCall IsIntrinsicCall mv ssaDumpInline DumpInline mv initSSATables InitTables mv initSSAEnv InitEnv mv compileSSA Compile mv stackOffset StackOffset mv canSSAType TypeOK mv SSAGenState State mv FwdRefAux fwdRefAux mv cgoSymABIs CgoSymABIs mv readSymABIs ReadSymABIs mv initLSym InitLSym mv useABIWrapGen symabiDefs CgoSymABIs ReadSymABIs InitLSym selectLSym makeABIWrapper setupTextLSym abi.go mv arch.go abi.go nowb.go phi.go pgen.go pgen_test.go ssa.go cmd/compile/internal/ssagen ' rm go.go gsubr.go Change-Id: I47fad6cbf1d1e583fd9139003a08401d7cd048a1 Reviewed-on: https://go-review.googlesource.com/c/go/+/279476 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 00:57:10 -05:00
"cmd/compile/internal/ssagen"
[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/arm"
all: use new softfloat on GOARM=5 Use the new softfloat support in the compiler, originally added for softfloat on MIPS. This support is portable, so we can just use it for softfloat on ARM. In the old softfloat support on ARM, the compiler generates floating point instructions, then the assembler inserts calls to _sfloat before FP instructions. _sfloat decodes the following FP instructions and simulates them. In the new scheme, the compiler generates runtime calls to do FP operations at a higher level. It doesn't generate FP instructions, and therefore the assembler won't insert _sfloat calls, i.e. the old mechanism is automatically suppressed. The old method may be still be triggered with assembly code using FP instructions. In the standard library, the only occurance is math/sqrt_arm.s, which is rewritten to call to the Go implementation instead. Some significant speedups for code using floating points: name old time/op new time/op delta BinaryTree17-4 37.1s ± 2% 37.3s ± 1% ~ (p=0.105 n=10+10) Fannkuch11-4 13.0s ± 0% 13.1s ± 0% +0.46% (p=0.000 n=10+10) FmtFprintfEmpty-4 700ns ± 4% 734ns ± 6% +4.84% (p=0.009 n=10+10) FmtFprintfString-4 1.22µs ± 3% 1.22µs ± 4% ~ (p=0.897 n=10+10) FmtFprintfInt-4 1.27µs ± 2% 1.30µs ± 1% +1.91% (p=0.001 n=10+9) FmtFprintfIntInt-4 1.83µs ± 2% 1.81µs ± 3% ~ (p=0.149 n=10+10) FmtFprintfPrefixedInt-4 1.80µs ± 3% 1.81µs ± 2% ~ (p=0.421 n=10+8) FmtFprintfFloat-4 6.89µs ± 3% 3.59µs ± 2% -47.93% (p=0.000 n=10+10) FmtManyArgs-4 6.39µs ± 1% 6.09µs ± 1% -4.61% (p=0.000 n=10+9) GobDecode-4 109ms ± 2% 81ms ± 2% -25.99% (p=0.000 n=9+10) GobEncode-4 109ms ± 2% 76ms ± 2% -29.88% (p=0.000 n=10+9) Gzip-4 3.61s ± 1% 3.59s ± 1% ~ (p=0.247 n=10+10) Gunzip-4 449ms ± 4% 450ms ± 1% ~ (p=0.230 n=10+7) HTTPClientServer-4 1.55ms ± 3% 1.53ms ± 2% ~ (p=0.400 n=9+10) JSONEncode-4 356ms ± 1% 183ms ± 1% -48.73% (p=0.000 n=10+10) JSONDecode-4 1.12s ± 2% 0.87s ± 1% -21.88% (p=0.000 n=10+10) Mandelbrot200-4 5.49s ± 1% 2.55s ± 1% -53.45% (p=0.000 n=9+10) GoParse-4 49.6ms ± 2% 47.5ms ± 1% -4.08% (p=0.000 n=10+9) RegexpMatchEasy0_32-4 1.13µs ± 4% 1.20µs ± 4% +6.42% (p=0.000 n=10+10) RegexpMatchEasy0_1K-4 4.41µs ± 2% 4.44µs ± 2% ~ (p=0.128 n=10+10) RegexpMatchEasy1_32-4 1.15µs ± 5% 1.20µs ± 5% +4.85% (p=0.002 n=10+10) RegexpMatchEasy1_1K-4 6.21µs ± 2% 6.37µs ± 4% +2.62% (p=0.001 n=9+10) RegexpMatchMedium_32-4 1.58µs ± 5% 1.65µs ± 3% +4.85% (p=0.000 n=10+10) RegexpMatchMedium_1K-4 341µs ± 3% 351µs ± 7% ~ (p=0.573 n=8+10) RegexpMatchHard_32-4 21.4µs ± 3% 21.5µs ± 5% ~ (p=0.931 n=9+9) RegexpMatchHard_1K-4 626µs ± 2% 626µs ± 1% ~ (p=0.645 n=8+8) Revcomp-4 46.4ms ± 2% 47.4ms ± 2% +2.07% (p=0.000 n=10+10) Template-4 1.31s ± 3% 1.23s ± 4% -6.13% (p=0.000 n=10+10) TimeParse-4 4.49µs ± 1% 4.41µs ± 2% -1.81% (p=0.000 n=10+9) TimeFormat-4 9.31µs ± 1% 9.32µs ± 2% ~ (p=0.561 n=9+9) Change-Id: Iaeeff6c9a09c1b2c064d06e09dd88101dc02bfa4 Reviewed-on: https://go-review.googlesource.com/106735 Reviewed-by: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-02-14 16:26:39 -05:00
"cmd/internal/objabi"
[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
)
[dev.regabi] cmd/compile: split out package ssagen [generated] [git-generate] cd src/cmd/compile/internal/gc rf ' # maxOpenDefers is declared in ssa.go but used only by walk. mv maxOpenDefers walk.go # gc.Arch -> ssagen.Arch # It is not as nice but will do for now. mv Arch ArchInfo mv thearch Arch mv Arch ArchInfo arch.go # Pull dwarf out of pgen.go. mv debuginfo declPos createDwarfVars preInliningDcls \ createSimpleVars createSimpleVar \ createComplexVars createComplexVar \ dwarf.go # Pull high-level compilation out of pgen.go, # leaving only the SSA code. mv compilequeue funccompile compile compilenow \ compileFunctions isInlinableButNotInlined \ initLSym \ compile.go mv BoundsCheckFunc GCWriteBarrierReg ssa.go mv largeStack largeStackFrames CheckLargeStacks pgen.go # All that is left in dcl.go is the nowritebarrierrecCheck mv dcl.go nowb.go # Export API and unexport non-API. mv initssaconfig InitConfig mv isIntrinsicCall IsIntrinsicCall mv ssaDumpInline DumpInline mv initSSATables InitTables mv initSSAEnv InitEnv mv compileSSA Compile mv stackOffset StackOffset mv canSSAType TypeOK mv SSAGenState State mv FwdRefAux fwdRefAux mv cgoSymABIs CgoSymABIs mv readSymABIs ReadSymABIs mv initLSym InitLSym mv useABIWrapGen symabiDefs CgoSymABIs ReadSymABIs InitLSym selectLSym makeABIWrapper setupTextLSym abi.go mv arch.go abi.go nowb.go phi.go pgen.go pgen_test.go ssa.go cmd/compile/internal/ssagen ' rm go.go gsubr.go Change-Id: I47fad6cbf1d1e583fd9139003a08401d7cd048a1 Reviewed-on: https://go-review.googlesource.com/c/go/+/279476 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 00:57:10 -05:00
func Init(arch *ssagen.ArchInfo) {
cmd/compile: eliminate direct uses of gc.Thearch in backends This CL changes the GOARCH.Init functions to take gc.Thearch as a parameter, which gc.Main supplies. Additionally, the x86 backend is refactored to decide within Init whether to use the 387 or SSE2 instruction generators, rather than for each individual SSA Value/Block. Passes toolstash-check -all. Change-Id: Ie6305a6cd6f6ab4e89ecbb3cbbaf5ffd57057a24 Reviewed-on: https://go-review.googlesource.com/38301 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-03-17 13:35:31 -07:00
arch.LinkArch = &arm.Linkarm
arch.REGSP = arm.REGSP
arch.MAXWIDTH = (1 << 32) - 1
all: use new softfloat on GOARM=5 Use the new softfloat support in the compiler, originally added for softfloat on MIPS. This support is portable, so we can just use it for softfloat on ARM. In the old softfloat support on ARM, the compiler generates floating point instructions, then the assembler inserts calls to _sfloat before FP instructions. _sfloat decodes the following FP instructions and simulates them. In the new scheme, the compiler generates runtime calls to do FP operations at a higher level. It doesn't generate FP instructions, and therefore the assembler won't insert _sfloat calls, i.e. the old mechanism is automatically suppressed. The old method may be still be triggered with assembly code using FP instructions. In the standard library, the only occurance is math/sqrt_arm.s, which is rewritten to call to the Go implementation instead. Some significant speedups for code using floating points: name old time/op new time/op delta BinaryTree17-4 37.1s ± 2% 37.3s ± 1% ~ (p=0.105 n=10+10) Fannkuch11-4 13.0s ± 0% 13.1s ± 0% +0.46% (p=0.000 n=10+10) FmtFprintfEmpty-4 700ns ± 4% 734ns ± 6% +4.84% (p=0.009 n=10+10) FmtFprintfString-4 1.22µs ± 3% 1.22µs ± 4% ~ (p=0.897 n=10+10) FmtFprintfInt-4 1.27µs ± 2% 1.30µs ± 1% +1.91% (p=0.001 n=10+9) FmtFprintfIntInt-4 1.83µs ± 2% 1.81µs ± 3% ~ (p=0.149 n=10+10) FmtFprintfPrefixedInt-4 1.80µs ± 3% 1.81µs ± 2% ~ (p=0.421 n=10+8) FmtFprintfFloat-4 6.89µs ± 3% 3.59µs ± 2% -47.93% (p=0.000 n=10+10) FmtManyArgs-4 6.39µs ± 1% 6.09µs ± 1% -4.61% (p=0.000 n=10+9) GobDecode-4 109ms ± 2% 81ms ± 2% -25.99% (p=0.000 n=9+10) GobEncode-4 109ms ± 2% 76ms ± 2% -29.88% (p=0.000 n=10+9) Gzip-4 3.61s ± 1% 3.59s ± 1% ~ (p=0.247 n=10+10) Gunzip-4 449ms ± 4% 450ms ± 1% ~ (p=0.230 n=10+7) HTTPClientServer-4 1.55ms ± 3% 1.53ms ± 2% ~ (p=0.400 n=9+10) JSONEncode-4 356ms ± 1% 183ms ± 1% -48.73% (p=0.000 n=10+10) JSONDecode-4 1.12s ± 2% 0.87s ± 1% -21.88% (p=0.000 n=10+10) Mandelbrot200-4 5.49s ± 1% 2.55s ± 1% -53.45% (p=0.000 n=9+10) GoParse-4 49.6ms ± 2% 47.5ms ± 1% -4.08% (p=0.000 n=10+9) RegexpMatchEasy0_32-4 1.13µs ± 4% 1.20µs ± 4% +6.42% (p=0.000 n=10+10) RegexpMatchEasy0_1K-4 4.41µs ± 2% 4.44µs ± 2% ~ (p=0.128 n=10+10) RegexpMatchEasy1_32-4 1.15µs ± 5% 1.20µs ± 5% +4.85% (p=0.002 n=10+10) RegexpMatchEasy1_1K-4 6.21µs ± 2% 6.37µs ± 4% +2.62% (p=0.001 n=9+10) RegexpMatchMedium_32-4 1.58µs ± 5% 1.65µs ± 3% +4.85% (p=0.000 n=10+10) RegexpMatchMedium_1K-4 341µs ± 3% 351µs ± 7% ~ (p=0.573 n=8+10) RegexpMatchHard_32-4 21.4µs ± 3% 21.5µs ± 5% ~ (p=0.931 n=9+9) RegexpMatchHard_1K-4 626µs ± 2% 626µs ± 1% ~ (p=0.645 n=8+8) Revcomp-4 46.4ms ± 2% 47.4ms ± 2% +2.07% (p=0.000 n=10+10) Template-4 1.31s ± 3% 1.23s ± 4% -6.13% (p=0.000 n=10+10) TimeParse-4 4.49µs ± 1% 4.41µs ± 2% -1.81% (p=0.000 n=10+9) TimeFormat-4 9.31µs ± 1% 9.32µs ± 2% ~ (p=0.561 n=9+9) Change-Id: Iaeeff6c9a09c1b2c064d06e09dd88101dc02bfa4 Reviewed-on: https://go-review.googlesource.com/106735 Reviewed-by: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-02-14 16:26:39 -05:00
arch.SoftFloat = objabi.GOARM == 5
cmd/compile/internal/gc: make defframe arch-independent The arch backends no longer depend on gc.Node. Passes toolstash-check -all. Change-Id: Ic7e49ae0a3ed155a2761c25e17cc341b46333fb4 Reviewed-on: https://go-review.googlesource.com/41196 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-04-20 10:31:39 -07:00
arch.ZeroRange = zerorange
cmd/compile: eliminate direct uses of gc.Thearch in backends This CL changes the GOARCH.Init functions to take gc.Thearch as a parameter, which gc.Main supplies. Additionally, the x86 backend is refactored to decide within Init whether to use the 387 or SSE2 instruction generators, rather than for each individual SSA Value/Block. Passes toolstash-check -all. Change-Id: Ie6305a6cd6f6ab4e89ecbb3cbbaf5ffd57057a24 Reviewed-on: https://go-review.googlesource.com/38301 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-03-17 13:35:31 -07:00
arch.Ginsnop = ginsnop
cmd/compile: call ginsnop, not ginsnop2 on ppc64le for mid-stack inlining tracebacks A recent change to fix stacktraces for inlined functions introduced a regression on ppc64le when compiling position independent code. That happened because ginsnop2 was called for the purpose of inserting a NOP to identify the location of the inlined function, when ginsnop should have been used. ginsnop2 is intended to be used before deferreturn to ensure r2 is properly restored when compiling position independent code. In some cases the location where r2 is loaded from might not be initialized. If that happens and r2 is used to generate an address, the result is likely a SEGV. This fixes that problem. Fixes #30283 Change-Id: If70ef27fc65ef31969712422306ac3a57adbd5b6 Reviewed-on: https://go-review.googlesource.com/c/163337 Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Andrew Bonventre <andybons@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-02-21 14:48:52 -05:00
arch.Ginsnopdefer = ginsnop
[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
[dev.regabi] cmd/compile: split out package ssagen [generated] [git-generate] cd src/cmd/compile/internal/gc rf ' # maxOpenDefers is declared in ssa.go but used only by walk. mv maxOpenDefers walk.go # gc.Arch -> ssagen.Arch # It is not as nice but will do for now. mv Arch ArchInfo mv thearch Arch mv Arch ArchInfo arch.go # Pull dwarf out of pgen.go. mv debuginfo declPos createDwarfVars preInliningDcls \ createSimpleVars createSimpleVar \ createComplexVars createComplexVar \ dwarf.go # Pull high-level compilation out of pgen.go, # leaving only the SSA code. mv compilequeue funccompile compile compilenow \ compileFunctions isInlinableButNotInlined \ initLSym \ compile.go mv BoundsCheckFunc GCWriteBarrierReg ssa.go mv largeStack largeStackFrames CheckLargeStacks pgen.go # All that is left in dcl.go is the nowritebarrierrecCheck mv dcl.go nowb.go # Export API and unexport non-API. mv initssaconfig InitConfig mv isIntrinsicCall IsIntrinsicCall mv ssaDumpInline DumpInline mv initSSATables InitTables mv initSSAEnv InitEnv mv compileSSA Compile mv stackOffset StackOffset mv canSSAType TypeOK mv SSAGenState State mv FwdRefAux fwdRefAux mv cgoSymABIs CgoSymABIs mv readSymABIs ReadSymABIs mv initLSym InitLSym mv useABIWrapGen symabiDefs CgoSymABIs ReadSymABIs InitLSym selectLSym makeABIWrapper setupTextLSym abi.go mv arch.go abi.go nowb.go phi.go pgen.go pgen_test.go ssa.go cmd/compile/internal/ssagen ' rm go.go gsubr.go Change-Id: I47fad6cbf1d1e583fd9139003a08401d7cd048a1 Reviewed-on: https://go-review.googlesource.com/c/go/+/279476 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2020-12-23 00:57:10 -05:00
arch.SSAMarkMoves = func(s *ssagen.State, b *ssa.Block) {}
cmd/compile: eliminate direct uses of gc.Thearch in backends This CL changes the GOARCH.Init functions to take gc.Thearch as a parameter, which gc.Main supplies. Additionally, the x86 backend is refactored to decide within Init whether to use the 387 or SSE2 instruction generators, rather than for each individual SSA Value/Block. Passes toolstash-check -all. Change-Id: Ie6305a6cd6f6ab4e89ecbb3cbbaf5ffd57057a24 Reviewed-on: https://go-review.googlesource.com/38301 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2017-03-17 13:35:31 -07:00
arch.SSAGenValue = ssaGenValue
arch.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
}
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