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package main
import (
"fmt"
"os"
)
type big struct {
pile [768]int8
}
type thing struct {
name string
next *thing
self *thing
stuff []big
}
func test(t *thing, u *thing) {
if t.next != nil {
return
}
fmt.Fprintf(os.Stderr, "%s\n", t.name)
u.self = u
t.self = t
t.next = u
for _, p := range t.stuff {
if isFoo(t, p) {
return
}
}
}
//go:noinline
func isFoo(t *thing, b big) bool {
return true
}
func main() {
growstack() // Use stack early to prevent growth during test, which confuses gdb
t := &thing{name: "t", self: nil, next: nil, stuff: make([]big, 1)}
u := thing{name: "u", self: t, next: t, stuff: make([]big, 1)}
test(t, &u)
}
var snk string
//go:noinline
func growstack() {
snk = fmt.Sprintf("%#v,%#v,%#v", 1, true, "cat")
}
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