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[VPlan] Simplify code in single scalar transform code (NFC).

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Adjust code as suggested post-commit 3b7b95f78e.

3b7b95f78e (r160997427)
This commit is contained in:
Florian Hahn
2025-06-28 22:52:55 +01:00
parent a365abd544
commit bdb299a67e
2 changed files with 4 additions and 5 deletions
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4
llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
View File

@@ -1220,9 +1220,9 @@ static void narrowToSingleScalarRecipes(VPlan &Plan) {
for (VPBasicBlock *VPBB : VPBlockUtils::blocksOnly<VPBasicBlock>(
vp_depth_first_shallow(Plan.getVectorLoopRegion()->getEntry()))) {
for (VPRecipeBase &R : make_early_inc_range(reverse(*VPBB))) {
auto *RepR = dyn_cast<VPReplicateRecipe>(&R);
if (!RepR && !isa<VPWidenRecipe, VPWidenSelectRecipe>(&R))
if (!isa<VPWidenRecipe, VPWidenSelectRecipe, VPReplicateRecipe>(&R))
continue;
auto *RepR = dyn_cast<VPReplicateRecipe>(&R);
if (RepR && (RepR->isSingleScalar() || RepR->isPredicated()))
continue;

5
llvm/lib/Transforms/Vectorize/VPlanUtils.h
View File

@@ -69,14 +69,13 @@ inline bool isSingleScalar(const VPValue *VPV) {
return Rep->isSingleScalar() || (PreservesUniformity(Rep->getOpcode()) &&
all_of(Rep->operands(), isSingleScalar));
}
if (isa<VPWidenGEPRecipe, VPDerivedIVRecipe, VPBlendRecipe>(VPV))
if (isa<VPWidenGEPRecipe, VPDerivedIVRecipe, VPBlendRecipe,
VPWidenSelectRecipe>(VPV))
return all_of(VPV->getDefiningRecipe()->operands(), isSingleScalar);
if (auto *WidenR = dyn_cast<VPWidenRecipe>(VPV)) {
return PreservesUniformity(WidenR->getOpcode()) &&
all_of(WidenR->operands(), isSingleScalar);
}
if (auto *WidenR = dyn_cast<VPWidenSelectRecipe>(VPV))
return all_of(WidenR->operands(), isSingleScalar);
if (auto *VPI = dyn_cast<VPInstruction>(VPV))
return VPI->isSingleScalar() || VPI->isVectorToScalar() ||
(PreservesUniformity(VPI->getOpcode()) &&