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cmd/compile: do not emit args_stackmap for func _

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Fixes #11699.

Change-Id: I01bf506d76260bcdf828bbde52791e328aa441a5
Reviewed-on: https://go-review.googlesource.com/16921
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Russ Cox 2015-11-04 15:54:41 -05:00
parent 247959d9b8
commit 292ad59291
2 changed files with 15 additions and 0 deletions
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3
src/cmd/compile/internal/gc/pgen.go
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@ -129,6 +129,9 @@ func gcsymdup(s *Sym) {
}
func emitptrargsmap() {
if Curfn.Func.Nname.Sym.Name == "_" {
return
}
sym := Lookup(fmt.Sprintf("%s.args_stackmap", Curfn.Func.Nname.Sym.Name))
nptr := int(Curfn.Type.Argwid / int64(Widthptr))

12
test/fixedbugs/issue11699.go Normal file
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@ -0,0 +1,12 @@
// compile
// Copyright 2015 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.
// issue 11699; used to fail with duplicate _.args_stackmap symbols.
package p
func _()
func _()