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Switch more inst insertion in instcombine to IRBuilder.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131544 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2011-05-18 17:58:37 +00:00
parent f88ad9aeee
commit 1eca76a611
1 changed files with 6 additions and 13 deletions
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17
lib/Transforms/InstCombine/InstCombineSelect.cpp
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@@ -751,27 +751,20 @@ Instruction *InstCombiner::visitSelectInst(SelectInst &SI) {
// So at this point we know we have (Y -> OtherAddOp): // So at this point we know we have (Y -> OtherAddOp):
// select C, (add X, Y), (sub X, Z) // select C, (add X, Y), (sub X, Z)
Value *NegVal; // Compute -Z Value *NegVal; // Compute -Z
if (Constant *C = dyn_cast<Constant>(SubOp->getOperand(1))) { if (SI.getType()->isFloatingPointTy()) {
NegVal = ConstantExpr::getNeg(C); NegVal = Builder->CreateFNeg(SubOp->getOperand(1));
} else if (SI.getType()->isFloatingPointTy()) {
NegVal = InsertNewInstBefore(
BinaryOperator::CreateFNeg(SubOp->getOperand(1),
"tmp"), SI);
} else { } else {
NegVal = InsertNewInstBefore( NegVal = Builder->CreateNeg(SubOp->getOperand(1));
BinaryOperator::CreateNeg(SubOp->getOperand(1),
"tmp"), SI);
} }
Value *NewTrueOp = OtherAddOp; Value *NewTrueOp = OtherAddOp;
Value *NewFalseOp = NegVal; Value *NewFalseOp = NegVal;
if (AddOp != TI) if (AddOp != TI)
std::swap(NewTrueOp, NewFalseOp); std::swap(NewTrueOp, NewFalseOp);
Instruction *NewSel = Value *NewSel =
SelectInst::Create(CondVal, NewTrueOp, Builder->CreateSelect(CondVal, NewTrueOp,
NewFalseOp, SI.getName() + ".p"); NewFalseOp, SI.getName() + ".p");
NewSel = InsertNewInstBefore(NewSel, SI);
if (SI.getType()->isFloatingPointTy()) if (SI.getType()->isFloatingPointTy())
return BinaryOperator::CreateFAdd(SubOp->getOperand(0), NewSel); return BinaryOperator::CreateFAdd(SubOp->getOperand(0), NewSel);
else else