forked from OSchip/llvm-project
parent
4c42211c6f
commit
c774f8c265
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@ -2439,15 +2439,14 @@ Instruction *InstCombiner::visitICmpInstWithCastAndCast(ICmpInst &ICI) {
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}
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// If we aren't dealing with a constant on the RHS, exit early.
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ConstantInt *CI = dyn_cast<ConstantInt>(ICI.getOperand(1));
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auto *CI = dyn_cast<ConstantInt>(ICI.getOperand(1));
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if (!CI)
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return nullptr;
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// Compute the constant that would happen if we truncated to SrcTy then
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// reextended to DestTy.
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// re-extended to DestTy.
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Constant *Res1 = ConstantExpr::getTrunc(CI, SrcTy);
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Constant *Res2 = ConstantExpr::getCast(LHSCI->getOpcode(),
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Res1, DestTy);
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Constant *Res2 = ConstantExpr::getCast(LHSCI->getOpcode(), Res1, DestTy);
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// If the re-extended constant didn't change...
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if (Res2 == CI) {
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