[PATCH] D62444: [CostModel] Add really basic support for being able to query the cost of the FNeg instruction.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

In D62444#1517291 <https://reviews.llvm.org/D62444#1517291>, @spatel wrote:

> Add the tests first as a preliminary step? 
>  Make sure I'm seeing it correctly: neither default nor x86 override is distinguishing the fsub idiom from normal fsub currently?


Yeah doesn't look like we recognize fsub -0.0, X as special currently.


Repository:
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  https://reviews.llvm.org/D62444/new/

https://reviews.llvm.org/D62444