1// Copyright 2014 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// +build 386 amd64p32 arm armbe m68k mips mipsle mips64p32 mips64p32le nios2 ppc s390 sh shbe sparc
6
7package runtime
8
9import "unsafe"
10
11// On 32-bit systems, the stored uint64 has a 32-bit pointer and 32-bit count.
12
13func lfstackPack(node *lfnode, cnt uintptr) uint64 {
14	return uint64(uintptr(unsafe.Pointer(node)))<<32 | uint64(cnt)
15}
16
17func lfstackUnpack(val uint64) *lfnode {
18	return (*lfnode)(unsafe.Pointer(uintptr(val >> 32)))
19}
20