You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
1.8 KiB
109 lines
1.8 KiB
// run
|
|
|
|
// Copyright 2019 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
|
|
|
|
import "reflect"
|
|
|
|
var tests = []interface{}{
|
|
func(x int, s int) int {
|
|
return x << s
|
|
},
|
|
func(x int, s int64) int {
|
|
return x << s
|
|
},
|
|
func(x int, s int32) int {
|
|
return x << s
|
|
},
|
|
func(x int, s int16) int {
|
|
return x << s
|
|
},
|
|
func(x int, s int8) int {
|
|
return x << s
|
|
},
|
|
func(x int, s int) int {
|
|
return x >> s
|
|
},
|
|
func(x int, s int64) int {
|
|
return x >> s
|
|
},
|
|
func(x int, s int32) int {
|
|
return x >> s
|
|
},
|
|
func(x int, s int16) int {
|
|
return x >> s
|
|
},
|
|
func(x int, s int8) int {
|
|
return x >> s
|
|
},
|
|
func(x uint, s int) uint {
|
|
return x << s
|
|
},
|
|
func(x uint, s int64) uint {
|
|
return x << s
|
|
},
|
|
func(x uint, s int32) uint {
|
|
return x << s
|
|
},
|
|
func(x uint, s int16) uint {
|
|
return x << s
|
|
},
|
|
func(x uint, s int8) uint {
|
|
return x << s
|
|
},
|
|
func(x uint, s int) uint {
|
|
return x >> s
|
|
},
|
|
func(x uint, s int64) uint {
|
|
return x >> s
|
|
},
|
|
func(x uint, s int32) uint {
|
|
return x >> s
|
|
},
|
|
func(x uint, s int16) uint {
|
|
return x >> s
|
|
},
|
|
func(x uint, s int8) uint {
|
|
return x >> s
|
|
},
|
|
}
|
|
|
|
func main() {
|
|
for _, t := range tests {
|
|
runTest(reflect.ValueOf(t))
|
|
}
|
|
}
|
|
|
|
func runTest(f reflect.Value) {
|
|
xt := f.Type().In(0)
|
|
st := f.Type().In(1)
|
|
|
|
for _, x := range []int{1, 0, -1} {
|
|
for _, s := range []int{-99, -64, -63, -32, -31, -16, -15, -8, -7, -1, 0, 1, 7, 8, 15, 16, 31, 32, 63, 64, 99} {
|
|
args := []reflect.Value{
|
|
reflect.ValueOf(x).Convert(xt),
|
|
reflect.ValueOf(s).Convert(st),
|
|
}
|
|
if s < 0 {
|
|
shouldPanic(func() {
|
|
f.Call(args)
|
|
})
|
|
} else {
|
|
f.Call(args) // should not panic
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func shouldPanic(f func()) {
|
|
defer func() {
|
|
if recover() == nil {
|
|
panic("did not panic")
|
|
}
|
|
}()
|
|
f()
|
|
}
|