Craig Topper 3e798476de [LegalizeDAG][RISCV] Don't promote f16 vector ISD::FNEG/FABS/FCOPYSIGN to f32 when we don't have Zvfh. (#106652) ...

The fp_extend will canonicalize NaNs which is not the semantics of
FNEG/FABS/FCOPYSIGN.

For fixed vectors I'm scalarizing due to test changes on other targets
where the scalarization is expected. I will try to address in a follow
up.

For scalable vectors, we bitcast to integer and use integer logic ops.

2024-09-03 22:44:49 -07:00

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