3.6.1 patch nomination: r230564 - only propagate equality comparisons of FP values that we are certain are non-zero

[Simon Byrne]

I'm just wanted to ping this again before the RC. Is there any chance
this could make 3.6.1?

Simon

On 12 March 2015 at 23:56, Hans Wennborg <hans at chromium.org> wrote:
> +Tom for 3.6.1.
>
> On Sun, Mar 8, 2015 at 6:58 AM, Simon Byrne <simonbyrne at gmail.com> wrote:
>> I would like to nominate patch r230564 for backporting to the 3.6
>> branch. As it stands currently, the gvn pass in 3.6.0 can sometimes
>> result in invalid changes to the sign of floating point zeros: see,
>> for example,
>> http://llvm.org/bugs/show_bug.cgi?id=22823
>> and the related Julia thread,
>> https://github.com/JuliaLang/julia/issues/10377
>>
>> Thank you,
>> Simon
>> _______________________________________________
>> llvm-commits mailing list
>> llvm-commits at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits