mirror of
https://github.com/golang/go
synced 2024-11-15 03:30:37 -07:00
e8f78cb60c
ARM64 maintains booleans in the low byte of registers. Upper parts of that register are junk. This rule is using all 32 bits of a boolean-containing register, which is wrong. Change the rule to only look at the low bit. Fixes #57184 Change-Id: Ibbef86b2be859df3d06d993db00e1231c481c428 Reviewed-on: https://go-review.googlesource.com/c/go/+/456556 Auto-Submit: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org>
41 lines
851 B
Go
41 lines
851 B
Go
// run
|
|
|
|
// 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
|
|
|
|
import (
|
|
"log"
|
|
"reflect"
|
|
"sort"
|
|
)
|
|
|
|
func main() {
|
|
const length = 257
|
|
x := make([]int64, length)
|
|
for i := 0; i < length; i++ {
|
|
x[i] = int64(i) * 27644437 % int64(length)
|
|
}
|
|
|
|
isLessStatic := func(i, j int) bool {
|
|
return x[i] < x[j]
|
|
}
|
|
|
|
isLessReflect := reflect.MakeFunc(reflect.TypeOf(isLessStatic), func(args []reflect.Value) []reflect.Value {
|
|
i := args[0].Int()
|
|
j := args[1].Int()
|
|
b := x[i] < x[j]
|
|
return []reflect.Value{reflect.ValueOf(b)}
|
|
}).Interface().(func(i, j int) bool)
|
|
|
|
sort.SliceStable(x, isLessReflect)
|
|
|
|
for i := 0; i < length-1; i++ {
|
|
if x[i] >= x[i+1] {
|
|
log.Fatalf("not sorted! (length=%v, idx=%v)\n%v\n", length, i, x)
|
|
}
|
|
}
|
|
}
|