| // run | |
| // Copyright 2022 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. | |
| // Issue 50671: sign extension eliminated incorrectly on MIPS64. | |
| package main | |
| //go:noinline | |
| func F(x int32) (float64, int64) { | |
| a := float64(x) | |
| b := int64(x) | |
| return a, b | |
| } | |
| var a, b, c float64 | |
| // Poison some floating point registers with non-zero high bits. | |
| // | |
| //go:noinline | |
| func poison(x float64) { | |
| a = x - 123.45 | |
| b = a * 1.2 | |
| c = b + 3.4 | |
| } | |
| func main() { | |
| poison(333.3) | |
| _, b := F(123) | |
| if b != 123 { | |
| panic("FAIL") | |
| } | |
| } |