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Remove Obsolete LoopDepthCalculator. All users should use LoopInfo directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1697 91177308-0d34-0410-b5e6-96231b3b80d8
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//===- llvm/Analysis/LoopDepth.h - Loop Depth Calculation --------*- C++ -*--=//
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//
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// This file provides a simple class to calculate the loop depth of a
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// BasicBlock.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_LOOP_DEPTH_H
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#define LLVM_ANALYSIS_LOOP_DEPTH_H
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#include "llvm/Pass.h"
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namespace cfg {
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class LoopInfo;
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class LoopDepthCalculator : public MethodPass {
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std::map<const BasicBlock*, unsigned> LoopDepth;
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void calculate(Method *M, LoopInfo &Loops);
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public:
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static AnalysisID ID; // cfg::LoopDepth Analysis ID
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LoopDepthCalculator(AnalysisID id) { assert(id == ID); }
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// This is a pass...
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bool runOnMethod(Method *M);
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inline unsigned getLoopDepth(const BasicBlock *BB) const {
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std::map<const BasicBlock*,unsigned>::const_iterator I = LoopDepth.find(BB);
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return I != LoopDepth.end() ? I->second : 0;
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}
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// getAnalysisUsageInfo - Provide loop depth, require loop info
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//
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virtual void getAnalysisUsageInfo(Pass::AnalysisSet &Requires,
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Pass::AnalysisSet &Destroyed,
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Pass::AnalysisSet &Provided);
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};
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} // end namespace cfg
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#endif
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//===- LoopDepth.cpp - Loop Depth Calculation --------------------*- C++ -*--=//
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//
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// This file provides a simple class to calculate the loop depth of a
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// BasicBlock.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/LoopDepth.h"
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#include "llvm/Analysis/LoopInfo.h"
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#include "llvm/Method.h"
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#include <algorithm>
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AnalysisID cfg::LoopDepthCalculator::ID(AnalysisID::create<cfg::LoopDepthCalculator>());
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bool cfg::LoopDepthCalculator::runOnMethod(Method *M) {
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calculate(M, getAnalysis<LoopInfo>());
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return false;
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}
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void cfg::LoopDepthCalculator::calculate(Method *M, LoopInfo &Loops) {
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for (Method::iterator I = M->begin(), E = M->end(); I != E; ++I)
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LoopDepth[*I] = Loops.getLoopDepth(*I);
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}
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// getAnalysisUsageInfo - Provide loop depth, require loop info
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//
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void cfg::LoopDepthCalculator::getAnalysisUsageInfo(Pass::AnalysisSet &Requires,
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Pass::AnalysisSet &Destroyed,
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Pass::AnalysisSet &Provided) {
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Provided.push_back(ID);
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Requires.push_back(LoopInfo::ID);
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}
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