[llvm] r270344 - [AVX512] Add a couple patterns to fix some cases where two vector mask inversions could appear in a row.

Rafael EspĂ­ndola via llvm-commits llvm-commits at lists.llvm.org
Wed May 25 05:31:16 PDT 2016

Terribly sorry about the noise.

Turn out the program was not frozen, just hitting a bot timeout and
the timeout was for the entire build+run. This was just the last drop
that moved it over the limit by making the build a bit slower.

It is actually quite remarkable how reproducible the bot build times are.


On 24 May 2016 at 21:53, Rafael EspĂ­ndola <rafael.espindola at gmail.com> wrote:
> On 24 May 2016 at 21:48, Craig Topper <craig.topper at gmail.com> wrote:
>> What sort of regression? The types in that pattern are only legal in AVX512
>> so I don't think a non AVX512 could even reach that pattern through isel.
> Compiled program freezes. I only noticed on the bot so far, but
> tomorrow I will try doing two builds locally to see if I can reproduce
> any .o changing.
> Thanks,
> Rafael

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