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5f256dc8e6
The fix is CL 122756. Updates #26248. Change-Id: Ic4250ab5d01da9f65d0bc033e2306343d9c87a99 Reviewed-on: https://go-review.googlesource.com/122757 Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
40 lines
567 B
Go
40 lines
567 B
Go
// run
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 26248: gccgo miscompiles interface field expression.
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// In G().M where G returns an interface, G() is evaluated twice.
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package main
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type I interface {
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M()
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}
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type T struct{}
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func (T) M() {}
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var g = 0
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//go:noinline
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func G() I {
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g++
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return T{}
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}
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//go:noinline
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func Use(interface{}) {}
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func main() {
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x := G().M
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Use(x)
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if g != 1 {
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println("want 1, got", g)
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panic("FAIL")
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}
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}
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