[llvm] [VPlan] Narrow wide stores in narrowToSingleScalars (PR #166939)
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Fri Nov 7 05:53:50 PST 2025
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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->
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You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp --diff_from_common_commit
``````````
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index b6e8e2a4d..e684fa2cf 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -1419,10 +1419,9 @@ static void narrowToSingleScalarRecipes(VPlan &Plan) {
true /*IsSingleScalar*/,
nullptr /*Mask*/, Metadata);
Clone->insertBefore(&R);
- unsigned ExtractOpc =
- vputils::isUniformAcrossVFsAndUFs(OperandToCheck)
- ? VPInstruction::ExtractLastElement
- : VPInstruction::ExtractLastLanePerPart;
+ unsigned ExtractOpc = vputils::isUniformAcrossVFsAndUFs(OperandToCheck)
+ ? VPInstruction::ExtractLastElement
+ : VPInstruction::ExtractLastLanePerPart;
auto *Ext = new VPInstruction(ExtractOpc, {Clone->getOperand(0)});
Ext->insertBefore(Clone);
Clone->setOperand(0, Ext);
``````````
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https://github.com/llvm/llvm-project/pull/166939
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