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[CostModel][X86] getIntrinsicInstrCost - lrint/llrint costs can use getCastInstrCost without argument data

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We don't use the IntrinsicCostAttributes arguments so, which allows us to use in type-only analysis in a future patch.
This commit is contained in:
Simon Pilgrim 2025-01-24 09:11:57 +00:00
parent 990837f91d
commit 1fa56038f6
1 changed files with 5 additions and 7 deletions
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12
llvm/lib/Target/X86/X86TargetTransformInfo.cpp
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@ -4482,15 +4482,13 @@ X86TTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
}
break;
case Intrinsic::lrint:
case Intrinsic::llrint:
case Intrinsic::llrint: {
// X86 can use the CVTP2SI instructions to lower lrint/llrint calls, which
// have the same costs as the CVTTP2SI (fptosi) instructions
if (!ICA.isTypeBasedOnly()) {
const SmallVectorImpl<Type *> &ArgTys = ICA.getArgTypes();
return getCastInstrCost(Instruction::FPToSI, RetTy, ArgTys[0],
TTI::CastContextHint::None, CostKind);
}
break;
const SmallVectorImpl<Type *> &ArgTys = ICA.getArgTypes();
return getCastInstrCost(Instruction::FPToSI, RetTy, ArgTys[0],
TTI::CastContextHint::None, CostKind);
}
case Intrinsic::maxnum:
case Intrinsic::minnum:
// FMINNUM has same costs so don't duplicate.