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mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Craig Topper 04c3e7a651 [RISCV] Pad v4i1/v2i1/v1i1 stores with 0s to make a full byte.
As noted in the FIXME there's a sort of agreement that the any
extra bits stored will be 0.

The generated code is pretty terrible. I was really hoping we
could use a tail undisturbed trick, but tail undisturbed no
longer applies to masked destinations in the current draft
spec.

Fingers crossed that it isn't common to do this. I doubt IR
from clang or the vectorizer would ever create this kind of store.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D100618
2021-04-19 11:05:18 -07:00
2021-04-03 12:49:03 -07:00
2020-03-14 18:08:26 -07:00

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