[llvm] 224319 - ARM: diagnose deprecated syntax

[Asiri Rathnayake]

Hi Saleem,

This patch:
http://llvm.org/viewvc/llvm-project?view=revision&revision=224319

Is causing internal faults in our MCHammer tests.

llvm-mc reproducer:

> echo 'STMDAEQ  r0,{r0}' | ./bin/llvm-mc -triple=armv7 --show-encoding
--show-inst

Can you have a look?

Best,

- Asiri