[llvm] r329287 - ARM: Do not spill CSR to stack on entry to noreturn functions

[Vitaly Buka via llvm-commits]

It fails only on 1 out of 3 Android configs on our bot, 32bit arm only.
aarch64 seems fine.

Easy way to reproduce should be just attach Android device with debug
enabled and run BUILDBOT_REVISION=329287
BUILDBOT_CLOBBER= zorg/zorg/buildbot/builders/sanitizers/buildbot_android.sh
from some scratch dir.
Make sure to kill your adb server, because the script will download own one.

https://github.com/llvm-mirror/zorg

Also we should revert the patch and investigate later.

On Fri, Apr 6, 2018 at 2:11 PM Tim Northover <tnorthover at apple.com> wrote:

> 9355 was  not green
> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-android/builds/9355
>
>
> OK, it looks like I misread that builder, apologies. Nevertheless, I’ve
> reverted the patch locally with no effect. So I need help here.
>
> I need you to either help me reproduce the environment of the builder (I
> do have an android phone, but local attempts to use NDK to build
> compiler-rt failed, and I wouldn’t know how to run the result if it
> hadn’t), or to give me the binaries from a differential pair of builds. The
> latter is a bit of a stab in the dark, but worth a shot if it’s easier.
>
> Cheers.
>
> Tim.
>
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