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