golang bug320 代码
文件路径：/test/fixedbugs/bug320.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) {
}