[PATCH] D34458: [TTI] Refine the cost of EXT in getUserCost()

[Haicheng Wu via Phabricator via llvm-commits]

haicheng marked an inline comment as done.
haicheng added a comment.

In https://reviews.llvm.org/D34458#806904, @efriedma wrote:

> > The regression in spec2006/h264ref is caused by a fully unrolled loop. The loop has an indrect call inside it. If transforming the indirect call to direct call, the performance can be improved by +10%, and then unrolling this loop can get additional +3% improvement. We are working on it.
>
> You're planning a change to the unroller?  Or something else?


We plan to work on transforming the indirect call to direct calls, not on the unroller.

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> It looks like this has some impact on other targets; do we have any test coverage?

I added two more tests for other targets.

Thank you,

Haicheng


Repository:
  rL LLVM

https://reviews.llvm.org/D34458