[PATCH] D109729: [RISCV] Optimize (add (shl x, c0), (shl y, c1))

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

In D109729#2998980 <https://reviews.llvm.org/D109729#2998980>, @benshi001 wrote:

> Using `let PredicateCodeUsesOperands = 1` makes code more boring and complex. So I have resorted to using DAG2GAG selection which looks more clear.

I'm not sure what you mean by boring here. Can you share one of the PatFrags using that feature?


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