文件操作 - issue50671.go
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文件: /usr/share/go-1.23/test/fixedbugs/issue50671.go
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// 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") } }
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