[llvm] r308493 - GlobalISel: select G_EXTRACT and G_INSERT instructions on AArch64.

[Tim Northover via llvm-commits]

On 20 Jul 2017, at 09:11, Tim Northover via llvm-commits <llvm-commits at lists.llvm.org> wrote:
>> I reverted this because it broke something in the test-suite:
>> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-global-isel/builds/185
> 
> Oh dear, sorry about that. I'll look into it right away.

Well that was fun! Turns out the Localizer was placing a G_FRAME_INDEX before the "this is where unwinding should jump to" EH_LABEL. Before, all that code was chucked out when the fallback was taken; with the G_INSERT/G_EXTRACT patch it was actually emitted.

I've put a fix together which passes the test-suite, so I'll polish it up and commit. Sorry again that you had to revert.

Tim.