| Linux in-mum-web1499.main-hosting.eu 5.14.0-503.40.1.el9_5.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May 5 06:06:04 EDT 2025 x86_64 Path : /opt/golang/1.22.0/test/fixedbugs/ |
| Current File : //opt/golang/1.22.0/test/fixedbugs/issue16948.go |
// run
// Copyright 2016 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 16948: make sure intrinsified atomic ops won't
// confuse the scheduler.
package main
import "sync/atomic"
func main() {
f()
}
var x int32
type T [10]int
var sink *T
func f() (t T) {
atomic.AddInt32(&x, 1)
g(42, 42, 42, 42, 42, &t) // use int values that is invalid pointer to smash the stack slot of return value of runtime.newobject
return
}
//go:noinline
func g(a, b, c, d, e int, p *T) {
var t [10000]int // a large stack frame to trigger stack growing
_ = t
sink = p // force p (in caller) heap allocated
}