go phiopt 源码

2022-07-15
浏览 (871)

golang phiopt 代码

文件路径：/test/phiopt.go

// +build amd64 s390x arm64
// errorcheck -0 -d=ssa/phiopt/debug=3

// Copyright 2016 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

//go:noinline
func f0(a bool) bool {
	x := false
	if a {
		x = true
	} else {
		x = false
	}
	return x // ERROR "converted OpPhi to Copy$"
}

//go:noinline
func f1(a bool) bool {
	x := false
	if a {
		x = false
	} else {
		x = true
	}
	return x // ERROR "converted OpPhi to Not$"
}

//go:noinline
func f2(a, b int) bool {
	x := true
	if a == b {
		x = false
	}
	return x // ERROR "converted OpPhi to Not$"
}

//go:noinline
func f3(a, b int) bool {
	x := false
	if a == b {
		x = true
	}
	return x // ERROR "converted OpPhi to Copy$"
}

//go:noinline
func f4(a, b bool) bool {
	return a || b // ERROR "converted OpPhi to OrB$"
}

//go:noinline
func f5or(a int, b bool) bool {
	var x bool
	if a == 0 {
		x = true
	} else {
		x = b
	}
	return x // ERROR "converted OpPhi to OrB$"
}

//go:noinline
func f5and(a int, b bool) bool {
	var x bool
	if a == 0 {
		x = b
	} else {
		x = false
	}
	return x // ERROR "converted OpPhi to AndB$"
}

//go:noinline
func f6or(a int, b bool) bool {
	x := b
	if a == 0 {
		// f6or has side effects so the OpPhi should not be converted.
		x = f6or(a, b)
	}
	return x
}

//go:noinline
func f6and(a int, b bool) bool {
	x := b
	if a == 0 {
		// f6and has side effects so the OpPhi should not be converted.
		x = f6and(a, b)
	}
	return x
}

//go:noinline
func f7or(a bool, b bool) bool {
	return a || b // ERROR "converted OpPhi to OrB$"
}

//go:noinline
func f7and(a bool, b bool) bool {
	return a && b // ERROR "converted OpPhi to AndB$"
}

//go:noinline
func f8(s string) (string, bool) {
	neg := false
	if s[0] == '-' {    // ERROR "converted OpPhi to Copy$"
		neg = true
		s = s[1:]
	}
	return s, neg
}

var d int

//go:noinline
func f9(a, b int) bool {
	c := false
	if a < 0 {          // ERROR "converted OpPhi to Copy$"
		if b < 0 {
			d = d + 1
		}
		c = true
	}
	return c
}

func main() {
}

相关信息

go 源码目录

相关文章

go 64bit 源码

go alias 源码

go alias1 源码

go alias2 源码

go alias3 源码

go align 源码

go append 源码

go append1 源码

0 赞

所属分类： 后端技术
本文标签： golang
版权声明： 原创文章如转载，请注明本文链接: https://www.seaxiang.com/blog/e1256f78b46a4d0d859769167a15c7ae

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
6、 harmony 鸿蒙初识ArkTS语言
7、 golang
8、 flink kafka connector scan.startup.mode 的几个选项
9、 openharmony
10、 Vue中input框自动聚焦

Loading...