mirror of
https://github.com/golang/go
synced 2024-11-17 22:34:47 -07:00
30 lines
603 B
Go
30 lines
603 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2018 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
|
||
|
|
|
||
|
|
// On 32-bit archs, one of the f fields of a [2]T
|
||
|
|
// will be unaligned (address of 4 mod 8).
|
||
|
|
// Make sure we can access the f fields successfully,
|
||
|
|
// particularly for load-add combo instructions
|
||
|
|
// introduced by CL 102036.
|
||
|
|
type T struct {
|
||
|
|
pad uint32
|
||
|
|
f float64
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func f(t, u *T) float64 {
|
||
|
|
return 3.0 + t.f + u.f
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
t := [2]T{{0, 1.0}, {0, 2.0}}
|
||
|
|
sink = f(&t[0], &t[1])
|
||
|
|
}
|
||
|
|
|
||
|
|
var sink float64
|