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| author | Austin Clements <austin@google.com> | 2021-04-02 13:32:08 -0400 |
|---|---|---|
| committer | Austin Clements <austin@google.com> | 2021-04-02 21:59:37 +0000 |
| commit | 2ebe77a2fda1ee9ff6fd9a3e08933ad1ebaea039 (patch) | |
| tree | 41ff593b733ac5ae0e2798747892b6bee45960a4 /src/cmd/internal/obj/x86 | |
| parent | f25d78f8e216f5558885ffd2cea39b3ff1a3ff43 (diff) | |
| download | go-git-2ebe77a2fda1ee9ff6fd9a3e08933ad1ebaea039.tar.gz | |
cmd/internal/obj: use REGENTRYTMP* in a few more places
There are a few remaining places in obj6 where we hard-code
safe-on-entry registers. Fix those to use the consts.
For #40724.
Change-Id: Ie640521aa67d6c99bc057553dc122160049c6edc
Reviewed-on: https://go-review.googlesource.com/c/go/+/307009
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>
Diffstat (limited to 'src/cmd/internal/obj/x86')
| -rw-r--r-- | src/cmd/internal/obj/x86/obj6.go | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/cmd/internal/obj/x86/obj6.go b/src/cmd/internal/obj/x86/obj6.go index a314583e49..785e6f5bd3 100644 --- a/src/cmd/internal/obj/x86/obj6.go +++ b/src/cmd/internal/obj/x86/obj6.go @@ -1046,7 +1046,7 @@ func stacksplit(ctxt *obj.Link, cursym *obj.LSym, p *obj.Prog, newprog obj.ProgA tmp := int16(REG_AX) // use AX for 32-bit if ctxt.Arch.Family == sys.AMD64 { // for 64-bit, stay away from register ABI parameter registers, even w/o GOEXPERIMENT=regabi - tmp = int16(REG_R13) + tmp = int16(REGENTRYTMP0) } // large stack: SP-framesize <= stackguard-StackSmall // LEAQ -xxx(SP), tmp @@ -1076,8 +1076,8 @@ func stacksplit(ctxt *obj.Link, cursym *obj.LSym, p *obj.Prog, newprog obj.ProgA tmp1 := int16(REG_SI) tmp2 := int16(REG_AX) if ctxt.Arch.Family == sys.AMD64 { - tmp1 = int16(REG_R13) // register ABI uses REG_SI and REG_AX for parameters. - tmp2 = int16(REG_R12) + tmp1 = int16(REGENTRYTMP0) // register ABI uses REG_SI and REG_AX for parameters. + tmp2 = int16(REGENTRYTMP1) } // Such a large stack we need to protect against wraparound. // If SP is close to zero: |