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cache result of operator*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107967 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -266,15 +266,16 @@ unsigned Loop::getSmallConstantTripMultiple() const {
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bool Loop::isLCSSAForm(DominatorTree &DT) const {
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// Sort the blocks vector so that we can use binary search to do quick
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// lookups.
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SmallPtrSet<BasicBlock *, 16> LoopBBs(block_begin(), block_end());
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SmallPtrSet<BasicBlock*, 16> LoopBBs(block_begin(), block_end());
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for (block_iterator BI = block_begin(), E = block_end(); BI != E; ++BI) {
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BasicBlock *BB = *BI;
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for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E;++I)
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for (Value::use_iterator UI = I->use_begin(), E = I->use_end(); UI != E;
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++UI) {
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BasicBlock *UserBB = cast<Instruction>(*UI)->getParent();
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if (PHINode *P = dyn_cast<PHINode>(*UI))
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User *U = *UI;
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BasicBlock *UserBB = cast<Instruction>(U)->getParent();
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if (PHINode *P = dyn_cast<PHINode>(U))
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UserBB = P->getIncomingBlock(UI);
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// Check the current block, as a fast-path, before checking whether
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