[PATCH] D154805: [DAGCombiner] Fold IEEE `fmul`/`fdiv` by Pow2 to `add`/`sub` of exp

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n added a comment.

In D154805#4648261 <https://reviews.llvm.org/D154805#4648261>, @RKSimon wrote:

> LGTM - please can you raise an issue describing the missing (fmul x, pow2_k) - > (ldexp x, (log2 pow2_k)) fold

Done: see https://github.com/llvm/llvm-project/issues/66794


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