[PATCH] D64432: [InstCombine] try to narrow a truncated load

Wed Jul 17 08:05:03 PDT 2019

jdoerfert added a subscriber: uenoku.
jdoerfert added a comment.

I think you are missing the negative test without `dereferenceable`.

In D64432#1588103 <https://reviews.llvm.org/D64432#1588103>, @spatel wrote:

> I'm expecting that will significantly reduce the opportunities for the transform though...until Attributor is working at full strength.

Agreed. Though, we already have `dereferenceabl` arguments. @uenoku Is now working on `dereferenceable` deduction for the Attributor :)

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https://reviews.llvm.org/D64432