[PATCH] D36338: BlockPlacement: Consider hotness of blocks relative to a loop iteration rather than relative to the loop as a whole

[Xinliang David Li via llvm-commits]

Since this is not turned on for non-PGO yet, so I assumed the performance
measurement is with PGO, right?

David

On Mon, Aug 14, 2017 at 12:57 PM, Richard Smith - zygoloid via Phabricator <
reviews at reviews.llvm.org> wrote:

> rsmith added a comment.
>
> In https://reviews.llvm.org/D36338#832543, @davidxl wrote:
>
> > This looks fine to me. Is there any performance data with PGO?
>
>
> I've done some measurements, and found that while some benchmarks improve
> significantly, others regress significantly. I'd like to take a look at the
> regressions before pushing forward more with this.
>
>
> Repository:
>   rL LLVM
>
> https://reviews.llvm.org/D36338
>
>
>
>
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