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[RISCV] Obey -riscv-v-fixed-length-vector-elen-max when lowering mask BUILD_VECTORs.
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Authored by craig.topper on Jan 17 2022, 3:21 PM.

Details

Summary

We may not be allowed to use vXiXLen vectors. Consult ELEN to
determine what is allowed. This will become even more important
when Zve32 is added.

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Event Timeline

craig.topper created this revision.Jan 17 2022, 3:21 PM
craig.topper requested review of this revision.Jan 17 2022, 3:21 PM
Herald added a project: Restricted Project. · View Herald TranscriptJan 17 2022, 3:21 PM

Use Subtarget method directly. Will need to fold Zve into that function in a later patch.

arcbbb accepted this revision.Jan 19 2022, 1:29 AM

LGTM. Thanks!

This revision is now accepted and ready to land.Jan 19 2022, 1:29 AM
frasercrmck accepted this revision.Jan 19 2022, 2:25 AM

LGTM too, cheers

This revision was landed with ongoing or failed builds.Jan 19 2022, 10:48 AM
This revision was automatically updated to reflect the committed changes.