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[RISCV] Masked compares should use a tail agnostic policy.
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Authored by craig.topper on May 28 2021, 11:21 AM.

Details

Summary

Writes of a mask result are always tail agnostic.

Unfortunately, this seems to have made codegen worse. I can only
think this must be because the vsetvli was acting as some sort
of barrier that prevented some code movement in the scheduler.

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Event Timeline

craig.topper created this revision.May 28 2021, 11:21 AM
craig.topper requested review of this revision.May 28 2021, 11:21 AM
Herald added a project: Restricted Project. · View Herald TranscriptMay 28 2021, 11:21 AM
Herald added a subscriber: MaskRay. · View Herald Transcript
arcbbb accepted this revision.Jun 7 2021, 8:03 PM

LGTM

This revision is now accepted and ready to land.Jun 7 2021, 8:03 PM