[PATCH] D42898: Do not spill CSR to stack on entry to noreturn functions

[Vitaly Buka via Phabricator via llvm-commits]

vitalybuka reopened this revision.
vitalybuka added a comment.
This revision is now accepted and ready to land.

I had to revert it in r329486
It breaks UBSAN test http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-android/builds/9418/steps/run%20lit%20tests%20%5Barm%2Faosp_marlin-userdebug%2FOPR4.170623.016%5D/logs/stdio
Looks like UBSAN crashes unrolling the stack for such functions.


https://reviews.llvm.org/D42898