diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
commit | 73df946d56c74384511a194dd01dbe099584fd1a (patch) | |
tree | fd0bcea490dd81327ddfbb31e215439672c9a068 /test/fixedbugs/bug320.go | |
parent | Initial commit. (diff) | |
download | golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip |
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/fixedbugs/bug320.go')
-rw-r--r-- | test/fixedbugs/bug320.go | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/test/fixedbugs/bug320.go b/test/fixedbugs/bug320.go new file mode 100644 index 0000000..0406b96 --- /dev/null +++ b/test/fixedbugs/bug320.go @@ -0,0 +1,45 @@ +// 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) { +} + |