mirror of
https://github.com/golang/go
synced 2024-11-23 15:20:03 -07:00
29 lines
558 B
Go
29 lines
558 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2019 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.
|
||
|
|
|
||
|
|
// Code was miscompiled on ppc64le due to incorrect zero-extension
|
||
|
|
// that was CSE'd.
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func g(i uint64) uint64 {
|
||
|
|
return uint64(uint32(i))
|
||
|
|
}
|
||
|
|
|
||
|
|
var sink uint64
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
for i := uint64(0); i < 1; i++ {
|
||
|
|
i32 := int32(i - 1)
|
||
|
|
sink = uint64((uint32(i32) << 1) ^ uint32((i32 >> 31)))
|
||
|
|
x := g(uint64(i32))
|
||
|
|
if x != uint64(uint32(i32)) {
|
||
|
|
panic(x)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|