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//===- bolt/Core/BinaryLoop.h - Loop info at low-level IR -------*- 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 the BinaryLoop class, which represents a loop in the
// CFG of a binary function, and the BinaryLoopInfo class, which stores
// information about all the loops of a binary function.
//
//===----------------------------------------------------------------------===//
#ifndef BOLT_CORE_BINARY_LOOP_H
#define BOLT_CORE_BINARY_LOOP_H
#include "llvm/Support/GenericLoopInfoImpl.h"
namespace llvm {
namespace bolt {
class BinaryBasicBlock;
class BinaryLoop : public LoopBase<BinaryBasicBlock, BinaryLoop> {
public:
BinaryLoop() : LoopBase<BinaryBasicBlock, BinaryLoop>() {}
// The total count of all the back edges of this loop.
uint64_t TotalBackEdgeCount{0};
// The times the loop is entered from outside.
uint64_t EntryCount{0};
// The times the loop is exited.
uint64_t ExitCount{0};
// Most of the public interface is provided by LoopBase.
protected:
friend class LoopInfoBase<BinaryBasicBlock, BinaryLoop>;
explicit BinaryLoop(BinaryBasicBlock *BB)
: LoopBase<BinaryBasicBlock, BinaryLoop>(BB) {}
};
class BinaryLoopInfo : public LoopInfoBase<BinaryBasicBlock, BinaryLoop> {
public:
BinaryLoopInfo() {}
unsigned OuterLoops{0};
unsigned TotalLoops{0};
unsigned MaximumDepth{0};
// Most of the public interface is provided by LoopInfoBase.
};
} // namespace bolt
} // namespace llvm
#endif
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