Simon Pilgrim 9e30b87afb [TTI] getMinMaxReductionCost - add FastMathFlag argument ...

Similar to the getArithmeticReductionCost / getExtendedReductionCost calls (which really don't need to use std::optional<>).

This will be necessary to correct recognize fast/nnan fmax/fmul reductions which can avoid nan handling - which will allow us to remove the fmax/fmin special case in X86TTIImpl::getMinMaxCost and use getIntrinsicInstrCost like we do for integer reductions (63c3895327).

Differential Revision: https://reviews.llvm.org/D148149

2023-04-13 10:42:42 +01:00

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