[llvm] [VPlan] Add opcode to create step for wide inductions. (PR #119284)

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git-clang-format --diff 6dc356d6985fc49d1b69c20cc27f6b066742144a 6b671a750396006c75389817bf29087bd163c590 --extensions cpp,h -- llvm/lib/Transforms/Vectorize/LoopVectorize.cpp llvm/lib/Transforms/Vectorize/VPlan.h llvm/lib/Transforms/Vectorize/VPlanPatternMatch.h llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp llvm/lib/Transforms/Vectorize/VPlanTransforms.h llvm/lib/Transforms/Vectorize/VPlanUnroll.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index bff06114c9..f31b0c304f 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -7654,7 +7654,8 @@ DenseMap<const SCEV *, Value *> LoopVectorizationPlanner::executePlan(
   VPlanTransforms::optimizeForVFAndUF(BestVPlan, BestVF, BestUF, PSE);
   VPlanTransforms::simplifyRecipes(BestVPlan, Legal->getWidestInductionType());
   VPlanTransforms::removeDeadRecipes(BestVPlan);
-  VPlanTransforms::convertToConcreteRecipes(BestVPlan, Legal->getWidestInductionType());
+  VPlanTransforms::convertToConcreteRecipes(BestVPlan,
+                                            Legal->getWidestInductionType());
 
   // Perform the actual loop transformation.
   VPTransformState State(&TTI, BestVF, BestUF, LI, DT, ILV.Builder, &ILV,
diff --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index d9e7e6ec75..3ba1faa6b5 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -4027,9 +4027,7 @@ public:
     UFs.insert(UF);
   }
 
-  unsigned hasSingleUF() const {
-    return UFs.size() == 1;
-  }
+  unsigned hasSingleUF() const { return UFs.size() == 1; }
 
   /// Return a string with the name of the plan and the applicable VFs and UFs.
   std::string getName() const;
diff --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index 8c4c699906..5fe7ee397e 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -889,8 +889,8 @@ static void simplifyRecipe(VPRecipeBase &R, VPTypeAnalysis &TypeInfo) {
   }
 
   if (auto *Steps = dyn_cast<VPScalarIVStepsRecipe>(&R)) {
-    if (Steps->getParent()->getPlan()->hasSingleUF() && Steps->getNumOperands() == 2 && 
-        vputils::onlyFirstLaneUsed(Steps)) {
+    if (Steps->getParent()->getPlan()->hasSingleUF() &&
+        Steps->getNumOperands() == 2 && vputils::onlyFirstLaneUsed(Steps)) {
       Steps->replaceAllUsesWith(Steps->getOperand(0));
       return;
     }

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https://github.com/llvm/llvm-project/pull/119284