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[LV] Use VPReplicateRecipe::isUniform instead isUniformAfterVec (NFCI).

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In scalarizeInstruction(), isUniformAfterVectorization is used to detect
cases where it is sufficient to always access the first lane. This
should map directly checking whether the operand is a uniform replicate
recipe.

Differential Revision: https://reviews.llvm.org/D116654
This commit is contained in:
Florian Hahn 2022-02-06 16:37:20 +00:00
parent 7275de7fb2
commit 541ca12dcd
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1 changed files with 2 additions and 1 deletions
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3
llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
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@ -2945,7 +2945,8 @@ void InnerLoopVectorizer::scalarizeInstruction(Instruction *Instr,
for (auto &I : enumerate(RepRecipe->operands())) {
auto InputInstance = Instance;
VPValue *Operand = I.value();
if (State.Plan->isUniformAfterVectorization(Operand))
VPReplicateRecipe *OperandR = dyn_cast<VPReplicateRecipe>(Operand);
if (OperandR && OperandR->isUniform())
InputInstance.Lane = VPLane::getFirstLane();
Cloned->setOperand(I.index(), State.get(Operand, InputInstance));
}