[llvm] r252825 - [ARM] Enable shrink-wrapping by default.

[Renato Golin via llvm-commits]

On 11 November 2015 at 23:31, Quentin Colombet via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: qcolombet
> Date: Wed Nov 11 17:31:46 2015
> New Revision: 252825
>
> URL: http://llvm.org/viewvc/llvm-project?rev=252825&view=rev
> Log:
> [ARM] Enable shrink-wrapping by default.
>
> Differential Revision: http://reviews.llvm.org/D14357
>
> rdar://problem/21942589

Quentin,

After bisecting, this seems to have caused:

http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15-full/builds/9014

http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15-full/builds/9014/steps/ninja%20check%201/logs/FAIL%3A%20AddressSanitizer-armhf-linux%3A%3Anull_deref.cc

I'm copying sanitizer folks to understand what's the change here, but
I'm guessing the sanitizer instrumentation didn't get inserted right,
with the prologue changed.

I'll revert for now...

cheers,
--renato