go issue12411 源码
golang issue12411 代码
文件路径：/test/fixedbugs/issue12411.go
// +build !386
// run
// Copyright 2015 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 12411. Loss of AX during %.
package main
func main() {
x := f(4)
if x != 0 {
println("BUG: x=", x)
}
}
//go:noinline
func f(x int) int {
// AX was live on entry to one of the % code generations,
// and the % code generation smashed it.
return ((2 * x) % 3) % (2 % ((x << 2) ^ (x % 3)))
}
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