1// asmcheck
2
3// Copyright 2018 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Make sure a pointer variable and a zero-sized variable
8// aren't allocated to the same stack slot.
9// See issue 24993.
10
11package codegen
12
13func zeroSize() {
14	c := make(chan struct{})
15	// amd64:`MOVQ\t\$0, command-line-arguments\.s\+56\(SP\)`
16	var s *int
17	// force s to be a stack object, also use some (fixed) stack space
18	g(&s, 1, 2, 3, 4, 5)
19
20	// amd64:`LEAQ\tcommand-line-arguments\..*\+55\(SP\)`
21	c <- struct{}{}
22}
23
24//go:noinline
25func g(**int, int, int, int, int, int) {}
26