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a490793037
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
//=======-------- BlockFrequencyInfo.cpp - Block Frequency Analysis -------=======//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Loops should be simplified before this analysis.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/BlockFrequencyInfo.h"
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#include "llvm/Analysis/BlockFrequencyImpl.h"
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#include "llvm/Analysis/BranchProbabilityInfo.h"
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#include "llvm/Analysis/LoopInfo.h"
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#include "llvm/Analysis/Passes.h"
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#include "llvm/InitializePasses.h"
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using namespace llvm;
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INITIALIZE_PASS_BEGIN(BlockFrequencyInfo, "block-freq", "Block Frequency Analysis",
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true, true)
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INITIALIZE_PASS_DEPENDENCY(BranchProbabilityInfo)
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INITIALIZE_PASS_END(BlockFrequencyInfo, "block-freq", "Block Frequency Analysis",
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true, true)
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char BlockFrequencyInfo::ID = 0;
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BlockFrequencyInfo::BlockFrequencyInfo() : FunctionPass(ID) {
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initializeBlockFrequencyInfoPass(*PassRegistry::getPassRegistry());
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BFI = new BlockFrequencyImpl<BasicBlock, Function, BranchProbabilityInfo>();
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}
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BlockFrequencyInfo::~BlockFrequencyInfo() {
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delete BFI;
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}
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void BlockFrequencyInfo::getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequired<BranchProbabilityInfo>();
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AU.setPreservesAll();
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}
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bool BlockFrequencyInfo::runOnFunction(Function &F) {
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BranchProbabilityInfo &BPI = getAnalysis<BranchProbabilityInfo>();
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BFI->doFunction(&F, &BPI);
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return false;
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}
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void BlockFrequencyInfo::print(raw_ostream &O, const Module *) const {
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if (BFI) BFI->print(O);
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}
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/// getblockFreq - Return block frequency. Return 0 if we don't have the
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/// information. Please note that initial frequency is equal to 1024. It means
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/// that we should not rely on the value itself, but only on the comparison to
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/// the other block frequencies. We do this to avoid using of floating points.
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///
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BlockFrequency BlockFrequencyInfo::getBlockFreq(const BasicBlock *BB) const {
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return BFI->getBlockFreq(BB);
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}
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