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[TTI] Move abs/smax/smin/umax/umin cost expansion to ICA getIntrinsicInstrCost variant

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This will simplify target overrides, and matches what we do for most integer intrinsic costs.
This commit is contained in:
Simon Pilgrim 2020-07-29 13:32:05 +01:00
parent acc205118e
commit 44836ba0cf
1 changed files with 20 additions and 20 deletions
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40
include/llvm/CodeGen/BasicTTIImpl.h
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@ -1223,26 +1223,6 @@ public:
IntrinsicCostAttributes Attrs(IID, RetTy, Args[0]->getType(), FMF, 1, I);
return getIntrinsicInstrCost(Attrs, CostKind);
}
case Intrinsic::abs:
case Intrinsic::smax:
case Intrinsic::smin:
case Intrinsic::umax:
case Intrinsic::umin: {
// abs(X) = select(icmp(X,0),X,sub(0,X))
// minmax(X,Y) = select(icmp(X,Y),X,Y)
Type *CondTy = RetTy->getWithNewBitWidth(1);
unsigned Cost = 0;
// TODO: Ideally getCmpSelInstrCost would accept an icmp condition code.
Cost += thisT()->getCmpSelInstrCost(BinaryOperator::ICmp, RetTy, CondTy,
CostKind);
Cost += thisT()->getCmpSelInstrCost(BinaryOperator::Select, RetTy, CondTy,
CostKind);
// TODO: Should we add an OperandValueProperties::OP_Zero property?
if (IID == Intrinsic::abs)
Cost += thisT()->getArithmeticInstrCost(
BinaryOperator::Sub, RetTy, CostKind, TTI::OK_UniformConstantValue);
return Cost;
}
case Intrinsic::fshl:
case Intrinsic::fshr: {
const Value *X = Args[0];
@ -1475,6 +1455,26 @@ public:
VecOpTy, cast<VectorType>(CmpInst::makeCmpResultType(VecOpTy)),
/*IsPairwiseForm=*/false,
/*IsUnsigned=*/true, CostKind);
case Intrinsic::abs:
case Intrinsic::smax:
case Intrinsic::smin:
case Intrinsic::umax:
case Intrinsic::umin: {
// abs(X) = select(icmp(X,0),X,sub(0,X))
// minmax(X,Y) = select(icmp(X,Y),X,Y)
Type *CondTy = RetTy->getWithNewBitWidth(1);
unsigned Cost = 0;
// TODO: Ideally getCmpSelInstrCost would accept an icmp condition code.
Cost += thisT()->getCmpSelInstrCost(BinaryOperator::ICmp, RetTy, CondTy,
CostKind);
Cost += thisT()->getCmpSelInstrCost(BinaryOperator::Select, RetTy, CondTy,
CostKind);
// TODO: Should we add an OperandValueProperties::OP_Zero property?
if (IID == Intrinsic::abs)
Cost += thisT()->getArithmeticInstrCost(
BinaryOperator::Sub, RetTy, CostKind, TTI::OK_UniformConstantValue);
return Cost;
}
case Intrinsic::sadd_sat:
case Intrinsic::ssub_sat: {
Type *CondTy = RetTy->getWithNewBitWidth(1);