// errorcheck
// +build amd64
// Copyright 2017 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 20529: Large stack frames caused compiler panics.
// Only tested on amd64 because the test only makes sense
// on a 64 bit system, and it is platform-agnostic,
// so testing one suffices.
package p
import "runtime"
func f() { // ERROR "stack frame too large"
x := [][]int{1e9: []int{}}
runtime.KeepAlive(x)
}