mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
|
// 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 ssa
|
||
|
|
|
||
|
|
import "testing"
|
||
|
|
|
||
|
|
func TestShortCircuit(t *testing.T) {
|
||
|
|
c := testConfig(t)
|
||
|
|
|
||
|
|
fun := Fun(c, "entry",
|
||
|
|
Bloc("entry",
|
||
|
|
Valu("mem", OpInitMem, TypeMem, 0, ".mem"),
|
||
|
|
Valu("arg1", OpArg, TypeInt64, 0, nil),
|
||
|
|
Valu("arg2", OpArg, TypeInt64, 0, nil),
|
||
|
|
Valu("arg3", OpArg, TypeInt64, 0, nil),
|
||
|
|
Goto("b1")),
|
||
|
|
Bloc("b1",
|
||
|
|
Valu("cmp1", OpLess64, TypeBool, 0, nil, "arg1", "arg2"),
|
||
|
|
If("cmp1", "b2", "b3")),
|
||
|
|
Bloc("b2",
|
||
|
|
Valu("cmp2", OpLess64, TypeBool, 0, nil, "arg2", "arg3"),
|
||
|
|
Goto("b3")),
|
||
|
|
Bloc("b3",
|
||
|
|
Valu("phi2", OpPhi, TypeBool, 0, nil, "cmp1", "cmp2"),
|
||
|
|
If("phi2", "b4", "b5")),
|
||
|
|
Bloc("b4",
|
||
|
|
Valu("cmp3", OpLess64, TypeBool, 0, nil, "arg3", "arg1"),
|
||
|
|
Goto("b5")),
|
||
|
|
Bloc("b5",
|
||
|
|
Valu("phi3", OpPhi, TypeBool, 0, nil, "phi2", "cmp3"),
|
||
|
|
If("phi3", "b6", "b7")),
|
||
|
|
Bloc("b6",
|
||
|
|
Exit("mem")),
|
||
|
|
Bloc("b7",
|
||
|
|
Exit("mem")))
|
||
|
|
|
||
|
|
CheckFunc(fun.f)
|
||
|
|
shortcircuit(fun.f)
|
||
|
|
CheckFunc(fun.f)
|
||
|
|
|
||
|
|
for _, b := range fun.f.Blocks {
|
||
|
|
for _, v := range b.Values {
|
||
|
|
if v.Op == OpPhi {
|
||
|
|
t.Errorf("phi %s remains", v)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|