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go/test/fixedbugs/bug320.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

46 lines
963 B
Go

// run
// Copyright 2011 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.
package main
func main() {
c := make(chan int, 1)
dummy := make(chan int)
v := 0x12345678
for i := 0; i < 10; i++ {
// 6g had a bug that caused select to pass &t to
// selectrecv before allocating the memory for t,
// which caused non-deterministic crashes.
// This test looks for the bug by checking that the
// value received actually ends up in t.
// If the allocation happens after storing through
// whatever garbage &t holds, the later reference
// to t in the case body will use the new pointer and
// not see the received value.
v += 0x1020304
c <- v
select {
case t := <-c:
go func() {
f(t)
}()
escape(&t)
if t != v {
println(i, v, t)
panic("wrong values")
}
case dummy <- 1:
}
}
}
func escape(*int) {
}
func f(int) {
}