[llvm] r218101 - Optimize sext/zext insertion algorithm in back-end.

[Eric Christopher]

On Wed, Sep 24, 2014 at 4:20 PM, Kostya Serebryany <kcc at google.com> wrote:
>
>
> On Wed, Sep 24, 2014 at 2:47 PM, Eric Christopher <echristo at gmail.com>
> wrote:
>>
>> On Wed, Sep 24, 2014 at 1:16 AM, Renato Golin <renato.golin at linaro.org>
>> wrote:
>> > On 23 September 2014 18:56, Bob Wilson <bob.wilson at apple.com> wrote:
>> >> We’re seeing significant regressions in memory usage. I think you
>> >> forgot to clear the PreferredExtendType DenseMap that you added here.
>> >
>> > Seems we're missing some valgrind / sanitizer buildbots to check that
>> > automatically?
>> >
>>
>> http://lab.llvm.org:8011/builders/clang-x86_64-linux-vg
>>
>> which appears to be having problems.
>>
>> I know that Kostya has some sanitizer bots, but I'm not sure what the
>> status is there.
>
>
> We have two bots:
> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux
> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/
> The second one is red at the moment with some (fresh?) msan reports.
> What is the problem here?
>

Aha.

Anyhow as of r218101 we were leaking quite a bit of memory. I don't
know if the sanitizers reported it or not.

-eric

>>
>>
>> -eric
>
>