[PATCH] D116720: [RISCV] Use shift for zext.h when Zbb and Zbp are not enabled

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

The AND could be better for loops if LICM can move the constant materialization out of the loop.

I’ve wondered about doing this as a machine IR peephole after LICM has its chance. But I haven’t spent any time on it.


Repository:
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  https://reviews.llvm.org/D116720/new/

https://reviews.llvm.org/D116720