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cache result of operator*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107968 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -190,14 +190,15 @@ bool LCSSA::ProcessInstruction(Instruction *Inst,
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for (Value::use_iterator UI = Inst->use_begin(), E = Inst->use_end();
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UI != E; ++UI) {
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BasicBlock *UserBB = cast<Instruction>(*UI)->getParent();
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if (PHINode *PN = 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 *PN = dyn_cast<PHINode>(U))
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UserBB = PN->getIncomingBlock(UI);
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if (InstBB != UserBB && !inLoop(UserBB))
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UsesToRewrite.push_back(&UI.getUse());
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}
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// If there are no uses outside the loop, exit with no change.
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if (UsesToRewrite.empty()) return false;
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