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Add constant replacement for insertelement/vectorshuffle constant exprs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27532 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1702,6 +1702,22 @@ void ConstantExpr::replaceUsesOfWithOnConstant(Value *From, Value *ToV,
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if (C1 == From) C1 = To;
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if (C2 == From) C2 = To;
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Replacement = ConstantExpr::getExtractElement(C1, C2);
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} else if (getOpcode() == Instruction::InsertElement) {
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Constant *C1 = getOperand(0);
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Constant *C2 = getOperand(1);
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Constant *C3 = getOperand(1);
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if (C1 == From) C1 = To;
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if (C2 == From) C2 = To;
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if (C3 == From) C3 = To;
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Replacement = ConstantExpr::getInsertElement(C1, C2, C3);
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} else if (getOpcode() == Instruction::ShuffleVector) {
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Constant *C1 = getOperand(0);
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Constant *C2 = getOperand(1);
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Constant *C3 = getOperand(2);
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if (C1 == From) C1 = To;
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if (C2 == From) C2 = To;
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if (C3 == From) C3 = To;
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Replacement = ConstantExpr::getShuffleVector(C1, C2, C3);
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} else if (getNumOperands() == 2) {
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Constant *C1 = getOperand(0);
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Constant *C2 = getOperand(1);
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