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[InstCombine] Remove unnecessary type equality check when creating zext or trunc (NFC) (#175947)

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This came up during discussions under PR #161101.
This commit is contained in:
Gábor Spaits 2026-01-14 15:50:04 +01:00 committed by GitHub
parent 5b0270cb72
commit 3424447645
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1 changed files with 2 additions and 4 deletions
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6
llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
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@ -3965,8 +3965,7 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
Value *V = Builder.CreateBitCast(
Vect, Builder.getIntNTy(FTy->getNumElements()));
Value *Res = Builder.CreateUnaryIntrinsic(Intrinsic::ctpop, V);
if (Res->getType() != II->getType())
Res = Builder.CreateZExtOrTrunc(Res, II->getType());
Res = Builder.CreateZExtOrTrunc(Res, II->getType());
if (Arg != Vect &&
cast<Instruction>(Arg)->getOpcode() == Instruction::SExt)
Res = Builder.CreateNeg(Res);
@ -4041,8 +4040,7 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
if (auto *VTy = dyn_cast<VectorType>(Vect->getType()))
if (VTy->getElementType() == Builder.getInt1Ty()) {
Value *Res = Builder.CreateAndReduce(Vect);
if (Res->getType() != II->getType())
Res = Builder.CreateZExt(Res, II->getType());
Res = Builder.CreateZExt(Res, II->getType());
return replaceInstUsesWith(CI, Res);
}
}