//==- BlockCounter.h - ADT for counting block visits ---------------*- C++ -*-//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines BlockCounter, an abstract data type used to count
// the number of times a given block has been visited along a path
// analyzed by CoreEngine.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_BLOCKCOUNTER_H
#define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_BLOCKCOUNTER_H
#include "llvm/Support/Allocator.h"
namespace clang {
class StackFrameContext;
namespace ento {
/// \class BlockCounter
/// An abstract data type used to count the number of times a given
/// block has been visited along a path analyzed by CoreEngine.
class BlockCounter {
void *Data;
BlockCounter(void *D) : Data(D) {}
public:
BlockCounter() : Data(nullptr) {}
unsigned getNumVisited(const StackFrameContext *CallSite,
unsigned BlockID) const;
class Factory {
void *F;
public:
Factory(llvm::BumpPtrAllocator& Alloc);
~Factory();
BlockCounter GetEmptyCounter();
BlockCounter IncrementCount(BlockCounter BC,
const StackFrameContext *CallSite,
unsigned BlockID);
};
friend class Factory;
};
} // end GR namespace
} // end clang namespace
#endif