[PATCH] opcodes/arc: Support dmb instruction with no operands

[Andrew Burgess]

* Andrew Burgess <andrew.burgess@embecosm.com> [2015-12-16 14:07:58 +0000]:

> The following patch adds a new instruction alias for arc.  I'll push
> this as obvious in a few days if I get no complaints.
> 
> Thanks,
> Andrew
> 
> --
> 
> In this GCC commit:
>   https://gcc.gnu.org/ml/gcc-patches/2015-12/msg00735.html
> GCC started emitting dmb instructions with no operands.  The intention
> was that dmb with no operands should be an alias for 'dmb 0'.
> 
> The following patch extends the arc opcodes library to support dmb with
> no operands.
> 
> opcodes/ChangeLog:
> 
> 	* arc-tbl.h (dmb): Add a no operand version of dmb.

Now pushed.

Thanks,
Andrew