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https://github.com/c64scene-ar/llvm-6502.git
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9261f0e02b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1600 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
//===- 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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LoopDepthCalculator(Method *M);
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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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