[llvm] r300746 - [SCEV] Make SCEV or modeling more aggressive.

[Friedman, Eli via llvm-commits]

On 4/20/2017 4:50 PM, Sanjoy Das wrote:
> I can't immediately think of any silver bullets here unfortunately.  I
> do want to take a look to see if some of the regression can be
> recovered by making the add expr handling faster in the pattern seen
> in this benchmark, but that's pretty uncertain.
>
> Were you able to figure out why we had a code size regression?

I can't reproduce the codesize regression from the given testcase; it 
looks like we're generating identical code at -Os before and after my patch.

-Eli

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