// 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) | |
} | |
} | |
} |