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Switch inst insertion in instcombine transform to IRBuilder. 

llvm-svn: 131542
This commit is contained in:
Eli Friedman 2011-05-18 17:31:55 +00:00
parent 1fabbe921b
commit cde9c1628c
1 changed files with 2 additions and 6 deletions
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8
llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
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@ -604,9 +604,7 @@ Instruction *InstCombiner::visitSelectInst(SelectInst &SI) {
return BinaryOperator::CreateOr(CondVal, FalseVal); return BinaryOperator::CreateOr(CondVal, FalseVal);
} }
// Change: A = select B, false, C --> A = and !B, C // Change: A = select B, false, C --> A = and !B, C
Value *NotCond = Value *NotCond = Builder->CreateNot(CondVal, "not."+CondVal->getName());
InsertNewInstBefore(BinaryOperator::CreateNot(CondVal,
"not."+CondVal->getName()), SI);
return BinaryOperator::CreateAnd(NotCond, FalseVal); return BinaryOperator::CreateAnd(NotCond, FalseVal);
} else if (ConstantInt *C = dyn_cast<ConstantInt>(FalseVal)) { } else if (ConstantInt *C = dyn_cast<ConstantInt>(FalseVal)) {
if (C->getZExtValue() == false) { if (C->getZExtValue() == false) {
@ -614,9 +612,7 @@ Instruction *InstCombiner::visitSelectInst(SelectInst &SI) {
return BinaryOperator::CreateAnd(CondVal, TrueVal); return BinaryOperator::CreateAnd(CondVal, TrueVal);
} }
// Change: A = select B, C, true --> A = or !B, C // Change: A = select B, C, true --> A = or !B, C
Value *NotCond = Value *NotCond = Builder->CreateNot(CondVal, "not."+CondVal->getName());
InsertNewInstBefore(BinaryOperator::CreateNot(CondVal,
"not."+CondVal->getName()), SI);
return BinaryOperator::CreateOr(NotCond, TrueVal); return BinaryOperator::CreateOr(NotCond, TrueVal);
} }