mirror of
https://github.com/golang/go
synced 2024-11-02 15:37:45 +00:00
24 lines
687 B
Go
24 lines
687 B
Go
|
// run -gcflags=-d=ssa/check/on
|
||
|
|
|
||
|
|
// 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.
|
||
|
|
|
||
|
|
// As of 2019-06, bug affects/ed amd64 and s390x.
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
var foo = []byte{105, 57, 172, 152}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
for i := 0; i < len(foo); i += 4 {
|
||
|
|
// Requires inlining and non-constant i
|
||
|
|
// Note the bug/fix also apply to different widths, but was unable to reproduce for those.
|
||
|
|
println(readLittleEndian32_2(foo[i], foo[i+1], foo[i+2], foo[i+3]))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func readLittleEndian32_2(a, b, c, d byte) uint32 {
|
||
|
|
return uint32(a) | (uint32(b) << 8) | (uint32(c) << 16) | (uint32(d) << 24)
|
||
|
|
}
|