[llvm] r213396 - MergedLoadStoreMotion pass

[Sanjay Patel]

I just posted a somewhat reduced test case in:
http://llvm.org/bugs/show_bug.cgi?id=20369


On Sun, Jul 20, 2014 at 7:36 PM, Renato Golin <renato.golin at linaro.org>
wrote:

> On 18 July 2014 20:13, Gerolf Hoflehner <ghoflehner at apple.com> wrote:
> > Author: ghoflehner
> > Date: Fri Jul 18 14:13:09 2014
> > New Revision: 213396
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=213396&view=rev
> > Log:
> > MergedLoadStoreMotion pass
> >
> > Merges equivalent loads on both sides of a hammock/diamond
> > and hoists into into the header.
> > Merges equivalent stores on both sides of a hammock/diamond
> > and sinks it to the footer.
> > Can enable if conversion and tolerate better load misses
> > and store operand latencies.
>
> Hi Gerolf,
>
> This commit broke the test-suite on ARM.
>
> I just bisected the commits between:
> http://lab.llvm.org:8011/builders/clang-native-arm-lnt/builds/7492
> http://lab.llvm.org:8011/builders/clang-native-arm-lnt/builds/7493
>
> And, although another commit broke the build, yours silently
> introduced a failure in MultiSource/Applications/obsequi.
>
> I'm trying to reduce the problem, but given that this is the release
> week, if we can't find it before 3.5 is branched, I think we better
> revert your commit until the release is gone or we can find a fix for
> it..
>
> cheers,
> --renato
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-- 
Sanjay Patel
RotateRight, LLC
http://www.rotateright.com
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