David Green dcd246cbde
[ARM] Add scalar add_sat costs. (#100988)
These can usually generate:
 - qadd / qsub for signed i32 scalars
- uqadd16 / qadd16 / uqsub16 / qsub16 with an extend for signed/unsigned
i8/i16
 - Are expanded to an add + cmp + sel otherwise

This can lead to differences in unrolling etc, but should be a better
cost for the instructions.
2024-08-05 18:56:04 +01:00
..