mirror of
https://github.com/golang/go
synced 2024-11-23 12:20:12 -07:00
8b20fd000d
func f(a, b bool) bool {
return a || b
}
is now a single instructions (excluding loading and unloading the arguments):
v10 = ORB <bool> v11 v12 : AX
Change-Id: Iff63399410cb46909f4318ea1c3f45a029f4aa5e
Reviewed-on: https://go-review.googlesource.com/21872
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
76 lines
1.1 KiB
Go
76 lines
1.1 KiB
Go
// +build amd64
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// errorcheck -0 -d=ssa/phiopt/debug=3
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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//go:noinline
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func f0(a bool) bool {
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x := false
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if a {
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x = true
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} else {
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x = false
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}
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return x // ERROR "converted OpPhi to Copy$"
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}
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//go:noinline
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func f1(a bool) bool {
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x := false
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if a {
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x = false
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} else {
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x = true
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}
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return x // ERROR "converted OpPhi to Not$"
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}
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//go:noinline
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func f2(a, b int) bool {
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x := true
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if a == b {
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x = false
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}
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return x // ERROR "converted OpPhi to Not$"
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}
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//go:noinline
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func f3(a, b int) bool {
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x := false
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if a == b {
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x = true
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}
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return x // ERROR "converted OpPhi to Copy$"
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}
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//go:noinline
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func f4(a, b bool) bool {
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return a || b // ERROR "converted OpPhi to Or8$"
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}
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//go:noinline
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func f5(a int, b bool) bool {
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x := b
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if a == 0 {
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x = true
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}
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return x // ERROR "converted OpPhi to Or8$"
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}
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//go:noinline
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func f6(a int, b bool) bool {
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x := b
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if a == 0 {
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// f6 has side effects so the OpPhi should not be converted.
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x = f6(a, b)
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}
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return x
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}
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func main() {
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}
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