[PATCH] D55866: [DAGCombiner] allow narrowing of add followed by truncate

Andrea Di Biagio via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Dec 19 03:26:47 PST 2018

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andreadb added a comment.

>From an x86 point of view, this change looks good.

At some point, we should address the poor codegen from `test/CodeGen/X86/pr32345.ll`. Maybe you could raise a bug for it.


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  https://reviews.llvm.org/D55866/new/

https://reviews.llvm.org/D55866

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