blob: 435f89010d410ac09ea0b200a3f9aa18b232ef6d [file] [log] [blame]
//===- BuryPointer.cpp - Memory Manipulation/Leak ---------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "llvm/Support/BuryPointer.h"
#include "llvm/Support/Compiler.h"
#include <atomic>
namespace llvm {
void BuryPointer(const void *Ptr) {
// This function may be called only a small fixed amount of times per each
// invocation, otherwise we do actually have a leak which we want to report.
// If this function is called more than kGraveYardMaxSize times, the pointers
// will not be properly buried and a leak detector will report a leak, which
// is what we want in such case.
static const size_t kGraveYardMaxSize = 16;
LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
static std::atomic<unsigned> GraveYardSize;
unsigned Idx = GraveYardSize++;
if (Idx >= kGraveYardMaxSize)
GraveYard[Idx] = Ptr;