[llvm] [AArch64][SVE][SelectionDAG] Improve codegen for SVE patterns sext(icmp) and zext(icmp) (PR #192052)
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Wed Apr 15 02:43:14 PDT 2026
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git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/AArch64/AArch64ISelLowering.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
index d35ddf675..d22158afd 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -24466,8 +24466,9 @@ static SDValue performExtendCombine(SDNode *N,
unsigned BitwidthMinusOne = N->getValueType(0).getScalarSizeInBits() - 1;
EVT PredVT =
N->getValueType(0).changeElementType(*DAG.getContext(), MVT::i1);
- //SDValue AllTruePred = getPTrue(DAG, DL, PredVT, AArch64SVEPredPattern::all);
- SDValue AllTruePred = ComparePred ;
+ // SDValue AllTruePred = getPTrue(DAG, DL, PredVT,
+ // AArch64SVEPredPattern::all);
+ SDValue AllTruePred = ComparePred;
EVT EltVT = N->getValueType(0).getVectorElementType();
MVT ConstantTy = EltVT.bitsGT(MVT::i32) ? MVT::i64 : MVT::i32;
SDValue ShiftAmt =
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https://github.com/llvm/llvm-project/pull/192052
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