llvm-6502/include/llvm/Analysis/BlockFrequencyInfo.h
Alexander Kornienko c16fc54851 Use 'override/final' instead of 'virtual' for overridden methods
The patch is generated using clang-tidy misc-use-override check.

This command was used:

  tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py \
    -checks='-*,misc-use-override' -header-filter='llvm|clang' \
    -j=32 -fix -format

http://reviews.llvm.org/D8925



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234679 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-11 02:11:45 +00:00

69 lines
2.1 KiB
C++

//===- BlockFrequencyInfo.h - Block Frequency Analysis ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Loops should be simplified before this analysis.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_BLOCKFREQUENCYINFO_H
#define LLVM_ANALYSIS_BLOCKFREQUENCYINFO_H
#include "llvm/Pass.h"
#include "llvm/Support/BlockFrequency.h"
#include <climits>
namespace llvm {
class BranchProbabilityInfo;
template <class BlockT> class BlockFrequencyInfoImpl;
/// BlockFrequencyInfo pass uses BlockFrequencyInfoImpl implementation to
/// estimate IR basic block frequencies.
class BlockFrequencyInfo : public FunctionPass {
typedef BlockFrequencyInfoImpl<BasicBlock> ImplType;
std::unique_ptr<ImplType> BFI;
public:
static char ID;
BlockFrequencyInfo();
~BlockFrequencyInfo() override;
void getAnalysisUsage(AnalysisUsage &AU) const override;
bool runOnFunction(Function &F) override;
void releaseMemory() override;
void print(raw_ostream &O, const Module *M) const override;
const Function *getFunction() const;
void view() const;
/// getblockFreq - Return block frequency. Return 0 if we don't have the
/// information. Please note that initial frequency is equal to ENTRY_FREQ. It
/// means that we should not rely on the value itself, but only on the
/// comparison to the other block frequencies. We do this to avoid using of
/// floating points.
BlockFrequency getBlockFreq(const BasicBlock *BB) const;
// Print the block frequency Freq to OS using the current functions entry
// frequency to convert freq into a relative decimal form.
raw_ostream &printBlockFreq(raw_ostream &OS, const BlockFrequency Freq) const;
// Convenience method that attempts to look up the frequency associated with
// BB and print it to OS.
raw_ostream &printBlockFreq(raw_ostream &OS, const BasicBlock *BB) const;
uint64_t getEntryFreq() const;
};
}
#endif