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| author | Joel Sing <joel@sing.id.au> | 2021-07-16 02:36:52 +1000 |
|---|---|---|
| committer | Joel Sing <joel@sing.id.au> | 2021-08-21 08:58:07 +0000 |
| commit | dcee007aad6cca16cec0383a394dd7db92cd6790 (patch) | |
| tree | 6eec18499f3ca2a0ef82b707b756cd44d7f39304 /src | |
| parent | e17439e0877d6ddb6881d9eb59758c27cc62f930 (diff) | |
| download | go-dcee007aad6cca16cec0383a394dd7db92cd6790.tar.gz go-dcee007aad6cca16cec0383a394dd7db92cd6790.zip | |
cmd/compile: sort regalloc switch by architecture
Also tweak comment for the arm64 case.
Change-Id: I073405bd2acf901dcaaf33a034a84b6a09dd4a83
Reviewed-on: https://go-review.googlesource.com/c/go/+/334869
Trust: Joel Sing <joel@sing.id.au>
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/compile/internal/ssa/regalloc.go | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/cmd/compile/internal/ssa/regalloc.go b/src/cmd/compile/internal/ssa/regalloc.go index 3d978e7ac8..28fac6ccd0 100644 --- a/src/cmd/compile/internal/ssa/regalloc.go +++ b/src/cmd/compile/internal/ssa/regalloc.go @@ -620,20 +620,20 @@ func (s *regAllocState) init(f *Func) { } if s.f.Config.ctxt.Flag_dynlink { switch s.f.Config.arch { - case "amd64": - s.allocatable &^= 1 << 15 // R15 - case "arm": - s.allocatable &^= 1 << 9 // R9 - case "ppc64le": // R2 already reserved. - // nothing to do - case "arm64": - // nothing to do? case "386": // nothing to do. // Note that for Flag_shared (position independent code) // we do need to be careful, but that carefulness is hidden // in the rewrite rules so we always have a free register // available for global load/stores. See gen/386.rules (search for Flag_shared). + case "amd64": + s.allocatable &^= 1 << 15 // R15 + case "arm": + s.allocatable &^= 1 << 9 // R9 + case "arm64": + // nothing to do + case "ppc64le": // R2 already reserved. + // nothing to do case "s390x": s.allocatable &^= 1 << 11 // R11 default: |