[PATCH] D133739: [RISCV][WIP] Form more VW instructions

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

> I wonder if even for cases where not all the users of the extension are folded, the performance gain from using a vw variant would make up for keeping two extension instructions. Any idea?

I was wondering about that too, but like Craig said the register pressure implication may be problematic.


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https://reviews.llvm.org/D133739