[llvm] 2906f36 - [VPlan] Update ::onlyScalarsGenerated to take IsScalable bool (NFCI).

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2024-02-03T14:51:14Z
New Revision: 2906f3626b54136b885d82d2b28b7991f3d728ae

URL: https://github.com/llvm/llvm-project/commit/2906f3626b54136b885d82d2b28b7991f3d728ae
DIFF: https://github.com/llvm/llvm-project/commit/2906f3626b54136b885d82d2b28b7991f3d728ae.diff

LOG: [VPlan] Update ::onlyScalarsGenerated to take IsScalable bool (NFCI).

Instead of passing in a full VF, just pass IsScalable as bool.

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    llvm/lib/Transforms/Vectorize/VPlan.cpp
    llvm/lib/Transforms/Vectorize/VPlan.h
    llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 17a0d01f18072..55466720aa11f 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -9237,7 +9237,7 @@ void VPWidenPointerInductionRecipe::execute(VPTransformState &State) {
   auto *IVR = getParent()->getPlan()->getCanonicalIV();
   PHINode *CanonicalIV = cast<PHINode>(State.get(IVR, 0));
 
-  if (onlyScalarsGenerated(State.VF)) {
+  if (onlyScalarsGenerated(State.VF.isScalable())) {
     // This is the normalized GEP that starts counting at zero.
     Value *PtrInd = State.Builder.CreateSExtOrTrunc(
         CanonicalIV, IndDesc.getStep()->getType());

diff  --git a/llvm/lib/Transforms/Vectorize/VPlan.cpp b/llvm/lib/Transforms/Vectorize/VPlan.cpp
index a1bd6aaf0e551..08dc32f0702b6 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlan.cpp
@@ -854,7 +854,7 @@ void VPlan::execute(VPTransformState *State) {
         auto *WidenPhi = cast<VPWidenPointerInductionRecipe>(&R);
         // TODO: Split off the case that all users of a pointer phi are scalar
         // from the VPWidenPointerInductionRecipe.
-        if (WidenPhi->onlyScalarsGenerated(State->VF))
+        if (WidenPhi->onlyScalarsGenerated(State->VF.isScalable()))
           continue;
 
         auto *GEP = cast<GetElementPtrInst>(State->get(WidenPhi, 0));

diff  --git a/llvm/lib/Transforms/Vectorize/VPlan.h b/llvm/lib/Transforms/Vectorize/VPlan.h
index 20792cb9ac7c1..de385eb315119 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.h
+++ b/llvm/lib/Transforms/Vectorize/VPlan.h
@@ -1745,7 +1745,7 @@ class VPWidenPointerInductionRecipe : public VPHeaderPHIRecipe {
   void execute(VPTransformState &State) override;
 
   /// Returns true if only scalar values will be generated.
-  bool onlyScalarsGenerated(ElementCount VF);
+  bool onlyScalarsGenerated(bool IsScalable);
 
   /// Returns the induction descriptor for the recipe.
   const InductionDescriptor &getInductionDescriptor() const { return IndDesc; }
@@ -2966,6 +2966,9 @@ class VPlan {
   }
 
   bool hasVF(ElementCount VF) { return VFs.count(VF); }
+  bool hasScalableVF() {
+    return any_of(VFs, [](ElementCount VF) { return VF.isScalable(); });
+  }
 
   bool hasScalarVFOnly() const { return VFs.size() == 1 && VFs[0].isScalar(); }
 

diff  --git a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
index e51184b0dd1fe..297b58d8abc47 100644
--- a/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
@@ -1650,9 +1650,9 @@ bool VPCanonicalIVPHIRecipe::isCanonical(
   return StepC && StepC->isOne();
 }
 
-bool VPWidenPointerInductionRecipe::onlyScalarsGenerated(ElementCount VF) {
+bool VPWidenPointerInductionRecipe::onlyScalarsGenerated(bool IsScalable) {
   return IsScalarAfterVectorization &&
-         (!VF.isScalable() || vputils::onlyFirstLaneUsed(this));
+         (!IsScalable || vputils::onlyFirstLaneUsed(this));
 }
 
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)