mirror of
https://github.com/golang/go
synced 2024-09-24 13:30:13 -06:00
26 lines
537 B
Go
26 lines
537 B
Go
|
// asmcheck
|
||
|
|
|
||
|
|
// 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.
|
||
|
|
|
||
|
|
// Make sure a pointer variable and a zero-sized variable
|
||
|
|
// aren't allocated to the same stack slot.
|
||
|
|
// See issue 24993.
|
||
|
|
|
||
|
|
package codegen
|
||
|
|
|
||
|
|
func zeroSize() {
|
||
|
|
c := make(chan struct{})
|
||
|
|
// amd64:`MOVQ\t\$0, ""\.s\+32\(SP\)`
|
||
|
|
var s *int
|
||
|
|
g(&s) // force s to be a stack object
|
||
|
|
|
||
|
|
// amd64:`LEAQ\t""\..*\+31\(SP\)`
|
||
|
|
c <- struct{}{}
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func g(p **int) {
|
||
|
|
}
|