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go/test/fixedbugs/issue14591.go
Emmanuel Odeke 53fd522c0d all: make copyright headers consistent with one space after period
Follows suit with https://go-review.googlesource.com/#/c/20111.

Generated by running
$ grep -R 'Go Authors.  All' * | cut -d":" -f1 | while read F;do perl -pi -e 's/Go
Authors.  All/Go Authors. All/g' $F;done

The code in cmd/internal/unvendor wasn't changed.

Fixes #15213

Change-Id: I4f235cee0a62ec435f9e8540a1ec08ae03b1a75f
Reviewed-on: https://go-review.googlesource.com/21819
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-05-02 13:43:18 +00:00

39 lines
769 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.
// Test to make sure we don't think values are dead
// when they are assigned to a PPARAMOUT slot before
// the last GC safepoint.
package main
import (
"fmt"
"runtime"
)
// When a T is deallocated, T[1] is certain to
// get clobbered (the runtime writes 0xdeaddeaddeaddead there).
type T [4]int
func f() (r, s *T) {
r = &T{0x30, 0x31, 0x32, 0x33}
runtime.GC()
s = &T{0x40, 0x41, 0x42, 0x43}
runtime.GC()
return
}
func main() {
r, s := f()
if r[1] != 0x31 {
fmt.Printf("bad r[1], want 0x31 got %x\n", r[1])
}
if s[1] != 0x41 {
fmt.Printf("bad s[1], want 0x41 got %x\n", s[1])
}
}