mirror of
https://github.com/golang/go
synced 2024-11-25 07:37:57 -07:00
27 lines
630 B
Go
27 lines
630 B
Go
|
// compile -d=ssa/check/on
|
||
|
|
|
||
|
|
// Copyright 2020 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.
|
||
|
|
|
||
|
|
// Issue 36723: fail to compile on PPC64 when SSA check is on.
|
||
|
|
|
||
|
|
package p
|
||
|
|
|
||
|
|
import "unsafe"
|
||
|
|
|
||
|
|
type T struct {
|
||
|
|
a, b, c, d uint8
|
||
|
|
x [10]int32
|
||
|
|
}
|
||
|
|
|
||
|
|
func F(p *T, i uintptr) int32 {
|
||
|
|
// load p.x[i] using unsafe, derived from runtime.pcdatastart
|
||
|
|
_ = *p
|
||
|
|
return *(*int32)(add(unsafe.Pointer(&p.d), unsafe.Sizeof(p.d)+i*unsafe.Sizeof(p.x[0])))
|
||
|
|
}
|
||
|
|
|
||
|
|
func add(p unsafe.Pointer, x uintptr) unsafe.Pointer {
|
||
|
|
return unsafe.Pointer(uintptr(p) + x)
|
||
|
|
}
|