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cmd/internal/obj: add IsAsm flag

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This allows more exciting changes to compiler-generated assembly
language that might not be correct for tricky hand-crafted
assembly (e.g., nop padding breaking tables of call or branch
instructions).

Updates #35881

Change-Id: I842b811796076c160180a364564f2844604df3fb
Reviewed-on: https://go-review.googlesource.com/c/go/+/229708
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
David Chase 2020-04-23 19:52:31 -04:00
parent 6677a2a1fc
commit f5fcc9b8e0
2 changed files with 3 additions and 1 deletions
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1
src/cmd/asm/main.go
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@ -41,6 +41,7 @@ func main() {
ctxt.Flag_dynlink = *flags.Dynlink
ctxt.Flag_shared = *flags.Shared || *flags.Dynlink
ctxt.Flag_go115newobj = *flags.Go115Newobj
ctxt.IsAsm = true
switch *flags.Spectre {
default:
log.Printf("unknown setting -spectre=%s", *flags.Spectre)