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[SLP] NFC. Remove the useless check for alternate instruction. #117116

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Merged
merged 2 commits into from
Nov 22, 2024
Merged

[SLP] NFC. Remove the useless check for alternate instruction. #117116

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[SLP] NFC. Remove the useless check for alternate instruction.
HanKuanChen Nov 21, 2024
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HanKuanChen Nov 21, 2024
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14 changes: 11 additions & 3 deletions llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -975,6 +975,9 @@ static InstructionsState getSameOpcode(ArrayRef<Value *> VL,
Type *Ty1 = Inst->getOperand(0)->getType();
if (Ty0 == Ty1) {
assert(InstOpcode == Opcode && "Expected same CmpInst opcode.");
assert(InstOpcode == AltOpcode &&
"Alternate instructions are only supported by BinaryOperator "
"and CastInst.");
// Check for compatible operands. If the corresponding operands are not
// compatible - need to perform alternate vectorization.
CmpInst::Predicate CurrentPred = Inst->getPredicate();
Expand Down Expand Up @@ -1003,7 +1006,10 @@ static InstructionsState getSameOpcode(ArrayRef<Value *> VL,
AltPred == CurrentPred || AltPred == SwappedCurrentPred)
continue;
}
} else if (InstOpcode == Opcode || InstOpcode == AltOpcode) {
} else if (InstOpcode == Opcode) {
assert(InstOpcode == AltOpcode &&
"Alternate instructions are only supported by BinaryOperator and "
"CastInst.");
if (auto *Gep = dyn_cast<GetElementPtrInst>(I)) {
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Add the assertion instead of the check

if (Gep->getNumOperands() != 2 ||
Gep->getOperand(0)->getType() != IBase->getOperand(0)->getType())
Expand Down Expand Up @@ -5999,8 +6005,10 @@ void BoUpSLP::reorderTopToBottom() {
if ((TE->State == TreeEntry::Vectorize ||
TE->State == TreeEntry::StridedVectorize) &&
isa<ExtractElementInst, ExtractValueInst, LoadInst, StoreInst,
InsertElementInst>(TE->getMainOp()) &&
!TE->isAltShuffle()) {
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Add the assertion

InsertElementInst>(TE->getMainOp())) {
assert(!TE->isAltShuffle() &&
"Alternate instructions are only supported by BinaryOperator "
"and CastInst.");
// Build correct orders for extract{element,value}, loads and
// stores.
reorderOrder(TE->ReorderIndices, Mask);
Expand Down
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