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Reserve space for PHI operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9007 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1649,6 +1649,7 @@ InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
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| PHI PHIList {
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const Type *Ty = $2->front().first->getType();
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$$ = new PHINode(Ty);
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$$->op_reserve($2->size()*2);
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while ($2->begin() != $2->end()) {
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if ($2->front().first->getType() != Ty)
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ThrowException("All elements of a PHI node must be of the same type!");
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