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Add constant replacement for insertelement/vectorshuffle constant exprs 

llvm-svn: 27532
This commit is contained in:
Chris Lattner 2006-04-08 05:09:48 +00:00
parent 9356489266
commit a93b4b5866
1 changed files with 16 additions and 0 deletions
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16
llvm/lib/VMCore/Constants.cpp
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@ -1702,6 +1702,22 @@ void ConstantExpr::replaceUsesOfWithOnConstant(Value *From, Value *ToV,
if (C1 == From) C1 = To;
if (C2 == From) C2 = To;
Replacement = ConstantExpr::getExtractElement(C1, C2);
} else if (getOpcode() == Instruction::InsertElement) {
Constant *C1 = getOperand(0);
Constant *C2 = getOperand(1);
Constant *C3 = getOperand(1);
if (C1 == From) C1 = To;
if (C2 == From) C2 = To;
if (C3 == From) C3 = To;
Replacement = ConstantExpr::getInsertElement(C1, C2, C3);
} else if (getOpcode() == Instruction::ShuffleVector) {
Constant *C1 = getOperand(0);
Constant *C2 = getOperand(1);
Constant *C3 = getOperand(2);
if (C1 == From) C1 = To;
if (C2 == From) C2 = To;
if (C3 == From) C3 = To;
Replacement = ConstantExpr::getShuffleVector(C1, C2, C3);
} else if (getNumOperands() == 2) {
Constant *C1 = getOperand(0);
Constant *C2 = getOperand(1);