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go/test/fixedbugs/bug500.go
Ian Lance Taylor 6270c5ac28 test: add test case for which gccgo generated incorrect GC info
Change-Id: I5e33db9e63f70706882b85ab124a48509797b05a
Reviewed-on: https://go-review.googlesource.com/33790
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-12-02 21:29:37 +00:00

42 lines
694 B
Go

// run
// Copyright 2016 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.
// Gccgo generated incorrect GC info when a global variable was
// initialized to a slice of a value containing pointers. The initial
// backing array for the slice was allocated in the .data section,
// which is fine, but the backing array was not registered as a GC
// root.
package main
import (
"runtime"
)
type s struct {
str string
}
var a = []struct {
str string
}{
{""},
}
var b = "b"
var c = "c"
func init() {
a[0].str = b + c
}
func main() {
runtime.GC()
if a[0].str != b + c {
panic(a[0].str)
}
}