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