diff options
Diffstat (limited to 'lib/Analysis/BlockFrequencyInfo.cpp')
-rw-r--r-- | lib/Analysis/BlockFrequencyInfo.cpp | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/lib/Analysis/BlockFrequencyInfo.cpp b/lib/Analysis/BlockFrequencyInfo.cpp index e52a0f8a8e..63049a5601 100644 --- a/lib/Analysis/BlockFrequencyInfo.cpp +++ b/lib/Analysis/BlockFrequencyInfo.cpp @@ -114,12 +114,9 @@ char BlockFrequencyInfo::ID = 0; BlockFrequencyInfo::BlockFrequencyInfo() : FunctionPass(ID) { initializeBlockFrequencyInfoPass(*PassRegistry::getPassRegistry()); - BFI = new BlockFrequencyImpl<BasicBlock, Function, BranchProbabilityInfo>(); } -BlockFrequencyInfo::~BlockFrequencyInfo() { - delete BFI; -} +BlockFrequencyInfo::~BlockFrequencyInfo() {} void BlockFrequencyInfo::getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<BranchProbabilityInfo>(); @@ -128,6 +125,8 @@ void BlockFrequencyInfo::getAnalysisUsage(AnalysisUsage &AU) const { bool BlockFrequencyInfo::runOnFunction(Function &F) { BranchProbabilityInfo &BPI = getAnalysis<BranchProbabilityInfo>(); + if (!BFI) + BFI.reset(new ImplType); BFI->doFunction(&F, &BPI); #ifndef NDEBUG if (ViewBlockFreqPropagationDAG != GVDT_None) @@ -136,12 +135,14 @@ bool BlockFrequencyInfo::runOnFunction(Function &F) { return false; } +void BlockFrequencyInfo::releaseMemory() { BFI.reset(); } + void BlockFrequencyInfo::print(raw_ostream &O, const Module *) const { if (BFI) BFI->print(O); } BlockFrequency BlockFrequencyInfo::getBlockFreq(const BasicBlock *BB) const { - return BFI->getBlockFreq(BB); + return BFI ? BFI->getBlockFreq(BB) : 0; } /// Pop up a ghostview window with the current block frequency propagation @@ -157,20 +158,20 @@ void BlockFrequencyInfo::view() const { } const Function *BlockFrequencyInfo::getFunction() const { - return BFI->Fn; + return BFI ? BFI->Fn : nullptr; } raw_ostream &BlockFrequencyInfo:: printBlockFreq(raw_ostream &OS, const BlockFrequency Freq) const { - return BFI->printBlockFreq(OS, Freq); + return BFI ? BFI->printBlockFreq(OS, Freq) : OS; } raw_ostream & BlockFrequencyInfo::printBlockFreq(raw_ostream &OS, const BasicBlock *BB) const { - return BFI->printBlockFreq(OS, BB); + return BFI ? BFI->printBlockFreq(OS, BB) : OS; } uint64_t BlockFrequencyInfo::getEntryFreq() const { - return BFI->getEntryFreq(); + return BFI ? BFI->getEntryFreq() : 0; } |