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| author | Austin Clements <austin@google.com> | 2021-03-15 16:48:54 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2021-03-18 16:51:27 +0000 |
| commit | eaa1ddee84cfdfbd47183b03962744fea52624f0 (patch) | |
| tree | af4d26ddbbcba94950f64844141f5a9b04a56b2c /src/runtime/sys_linux_amd64.s | |
| parent | c71acbfe8372099877cdc989b546389b05222600 (diff) | |
| download | go-eaa1ddee84cfdfbd47183b03962744fea52624f0.tar.gz go-eaa1ddee84cfdfbd47183b03962744fea52624f0.zip | |
all: explode GOEXPERIMENT=regabi into 5 sub-experiments
This separates GOEXPERIMENT=regabi into five sub-experiments:
regabiwrappers, regabig, regabireflect, regabidefer, and regabiargs.
Setting GOEXPERIMENT=regabi now implies the working subset of these
(currently, regabiwrappers, regabig, and regabireflect).
This simplifies testing, helps derisk the register ABI project,
and will also help with performance comparisons.
This replaces the -abiwrap flag to the compiler and linker with
the regabiwrappers experiment.
As part of this, regabiargs now enables registers for all calls
in the compiler. Previously, this was statically disabled in
regabiEnabledForAllCompilation, but now that we can control it
independently, this isn't necessary.
For #40724.
Change-Id: I5171e60cda6789031f2ef034cc2e7c5d62459122
Reviewed-on: https://go-review.googlesource.com/c/go/+/302070
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>
Reviewed-by: David Chase <drchase@google.com>
Diffstat (limited to 'src/runtime/sys_linux_amd64.s')
| -rw-r--r-- | src/runtime/sys_linux_amd64.s | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/runtime/sys_linux_amd64.s b/src/runtime/sys_linux_amd64.s index d48573c2c5..584f2c5b1e 100644 --- a/src/runtime/sys_linux_amd64.s +++ b/src/runtime/sys_linux_amd64.s @@ -215,7 +215,7 @@ TEXT runtime·walltime1(SB),NOSPLIT,$16-12 MOVQ SP, R12 // Save old SP; R12 unchanged by C code. -#ifdef GOEXPERIMENT_REGABI +#ifdef GOEXPERIMENT_REGABI_G MOVQ g_m(R14), BX // BX unchanged by C code. #else get_tls(CX) @@ -236,7 +236,7 @@ TEXT runtime·walltime1(SB),NOSPLIT,$16-12 MOVQ CX, m_vdsoPC(BX) MOVQ DX, m_vdsoSP(BX) -#ifdef GOEXPERIMENT_REGABI +#ifdef GOEXPERIMENT_REGABI_G CMPQ R14, m_curg(BX) // Only switch if on curg. #else CMPQ AX, m_curg(BX) // Only switch if on curg. @@ -283,7 +283,7 @@ TEXT runtime·nanotime1(SB),NOSPLIT,$16-8 MOVQ SP, R12 // Save old SP; R12 unchanged by C code. -#ifdef GOEXPERIMENT_REGABI +#ifdef GOEXPERIMENT_REGABI_G MOVQ g_m(R14), BX // BX unchanged by C code. #else get_tls(CX) @@ -304,7 +304,7 @@ TEXT runtime·nanotime1(SB),NOSPLIT,$16-8 MOVQ CX, m_vdsoPC(BX) MOVQ DX, m_vdsoSP(BX) -#ifdef GOEXPERIMENT_REGABI +#ifdef GOEXPERIMENT_REGABI_G CMPQ R14, m_curg(BX) // Only switch if on curg. #else CMPQ AX, m_curg(BX) // Only switch if on curg. |