lfstack_32bit.go

     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  //go:build 386 || arm || mips || mipsle
     6  
     7  package runtime
     8  
     9  import "unsafe"
    10  
    11  // On 32-bit systems, the stored uint64 has a 32-bit pointer and 32-bit count.
    12  
    13  func lfstackPack(node *lfnode, cnt uintptr) uint64 {
    14  	return uint64(uintptr(unsafe.Pointer(node)))<<32 | uint64(cnt)
    15  }
    16  
    17  func lfstackUnpack(val uint64) *lfnode {
    18  	return (*lfnode)(unsafe.Pointer(uintptr(val >> 32)))
    19  }
    20
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