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[VPlan] Move isUniformAfterVectorization from VPlan to vputils (NFC).

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This allows re-using the utility without a VPlan object. The helper also
doesn't access any data from VPlan.
This commit is contained in:
Florian Hahn 2022-08-26 18:26:32 +01:00
parent c7b815a510
commit 4e5c44964a
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GPG Key ID: EEF712BB5E80EBBA
2 changed files with 7 additions and 7 deletions
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12
llvm/lib/Transforms/Vectorize/VPlan.h
View File

@ -2680,12 +2680,6 @@ public:
return map_range(Operands, Fn);
}
/// Returns true if \p VPV is uniform after vectorization.
bool isUniformAfterVectorization(VPValue *VPV) const {
auto RepR = dyn_cast_or_null<VPReplicateRecipe>(VPV->getDef());
return !VPV->getDef() || (RepR && RepR->isUniform());
}
/// Returns the VPRegionBlock of the vector loop.
VPRegionBlock *getVectorLoopRegion() {
return cast<VPRegionBlock>(getEntry()->getSingleSuccessor());
@ -3061,6 +3055,12 @@ bool onlyFirstLaneUsed(VPValue *Def);
/// create a new one.
VPValue *getOrCreateVPValueForSCEVExpr(VPlan &Plan, const SCEV *Expr,
ScalarEvolution &SE);
/// Returns true if \p VPV is uniform after vectorization.
inline bool isUniformAfterVectorization(VPValue *VPV) {
auto RepR = dyn_cast_or_null<VPReplicateRecipe>(VPV->getDef());
return !VPV->getDef() || (RepR && RepR->isUniform());
}
} // end namespace vputils
} // end namespace llvm

2
llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp
View File

@ -134,7 +134,7 @@ bool VPRecipeBase::mayHaveSideEffects() const {
void VPLiveOut::fixPhi(VPlan &Plan, VPTransformState &State) {
auto Lane = VPLane::getLastLaneForVF(State.VF);
VPValue *ExitValue = getOperand(0);
if (Plan.isUniformAfterVectorization(ExitValue))
if (vputils::isUniformAfterVectorization(ExitValue))
Lane = VPLane::getFirstLane();
Phi->addIncoming(State.get(ExitValue, VPIteration(State.UF - 1, Lane)),
State.Builder.GetInsertBlock());