[PATCH] D99479: [RISCV] Add custom type legalization to form MULHSU when possible.

[Alex Bradbury via Phabricator via llvm-commits]

asb accepted this revision.
asb added a comment.
This revision is now accepted and ready to land.

LGTM.

I think it's OK to land without this, but: Running this patch quickly across the GCC torture suite, the only codegen changes are to 20120817-1.c and pr51581-{1,2}.c on RV32 where a mulhsu is now selected rather than a solitary mulh. I believe this is still correct, but it made me wonder if we are missing some test coverage and should have a codegen test that would demonstrate that change.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D99479/new/

https://reviews.llvm.org/D99479