[llvm] r189819 - [SystemZ] Add support for TMHH, TMHL, TMLH and TMLL

[Richard Sandiford]

Richard Sandiford <rsandifo at linux.vnet.ibm.com> writes:
> Author: rsandifo
> Date: Tue Sep  3 10:38:35 2013
> New Revision: 189819
>
> URL: http://llvm.org/viewvc/llvm-project?rev=189819&view=rev
> Log:
> [SystemZ] Add support for TMHH, TMHL, TMLH and TMLL
>
> For now this just handles simple comparisons of an ANDed value with zero.
> The CC value provides enough information to do any comparison for a
> 2-bit mask, and some nonzero comparisons with more populated masks,
> but that's all future work.

Gah.  The message was supposed to be:

[SystemZ] Extend TM support

Handle comparisons like (X & Const) == Const, and various other combinations.