[llvm-commits] PATCH: Teach LLVM to form minimal multiply DAGs

[Chandler Carruth]

On Wed, Apr 25, 2012 at 9:20 PM, Chandler Carruth <chandlerc at gmail.com>wrote:

> On Tue, Apr 24, 2012 at 4:47 PM, Evan Cheng <evan.cheng at apple.com> wrote:
>
>> Interesting stuff. But it seems like we need some performance data. Are
>> they coming? :-)
>>
>
> Indeed!
>
> This has almost no impact on LNT. The only regressions look like noise to
> me (<3%, only two benchmarks)
>
> However, SPASS speeds up by 8%!!! =D
>
> Look good?
>

Hmm, given the lack of regressions in my test run, I chatted w/ Eric on IRC
and have submitted as r155616 so that it'll get picked up by the nightly
performance runs. I'll chat w/ folks tomorrow and revert if any issues crop
up.

-Chandler
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