[llvm] df357a7 - [VPlan] Use step from induction recipe directly. (NFC)

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2023-06-11T21:40:06+01:00
New Revision: df357a71dd7d10ee4bdc0bd22e6be048c5ad7088

URL: https://github.com/llvm/llvm-project/commit/df357a71dd7d10ee4bdc0bd22e6be048c5ad7088
DIFF: https://github.com/llvm/llvm-project/commit/df357a71dd7d10ee4bdc0bd22e6be048c5ad7088.diff

LOG: [VPlan] Use step from induction recipe directly. (NFC)

Directly use the step of the transformed induction instead of creating
a new step. This allows replacing all uses of strides in D147783.

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
index ea8f483aed79c..2047de281c6c7 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
@@ -507,8 +507,7 @@ void VPlanTransforms::optimizeInductions(VPlan &Plan, ScalarEvolution &SE) {
     if (Instruction *TruncI = WideIV->getTruncInst())
       ResultTy = TruncI->getType();
     const InductionDescriptor &ID = WideIV->getInductionDescriptor();
-    VPValue *Step =
-        vputils::getOrCreateVPValueForSCEVExpr(Plan, ID.getStep(), SE);
+    VPValue *Step = WideIV->getStepValue();
     VPValue *BaseIV = CanonicalIV;
     if (!CanonicalIV->isCanonical(ID.getKind(), WideIV->getStartValue(), Step,
                                   ResultTy)) {