go prove_constant_folding 源码
golang prove_constant_folding 代码
文件路径：/test/prove_constant_folding.go
// +build amd64
// errorcheck -0 -d=ssa/prove/debug=2
// 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.
package main
func f0i(x int) int {
if x == 20 {
return x // ERROR "Proved.+is constant 20$"
}
if (x + 20) == 20 {
return x + 5 // ERROR "Proved.+is constant 0$"
}
return x / 2
}
func f0u(x uint) uint {
if x == 20 {
return x // ERROR "Proved.+is constant 20$"
}
if (x + 20) == 20 {
return x + 5 // ERROR "Proved.+is constant 0$"
}
return x / 2
}
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