[PATCH] D58521: [DAGCombiner] allow truncation of binops after legalization if desirable

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

IIRC the idot patterns are looking for very specific patterns and avoiding commuting to save compile time, so maybe those just need to be updated?


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  https://reviews.llvm.org/D58521/new/

https://reviews.llvm.org/D58521