[RFA] [ARM] Fix reporting of undefined and deprecated mov rd, rm instructions

[Matthew Gretton-Dann]

Hi,

In Thumb state gas rejects mov sp, sp.  In fact this instruction is
allowed (but deprecated).

The attached patch fixes this case, and other related cases where the
disassembler was incorrectly accepting or rejecting variants of mov rd,
rm in Thumb state.  Please can someone review and if appropriate approve
it?

Thanks,

Matt

Proposed ChangeLogs:

gas/ChangeLog:
2010-06-28  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* config/tc-arm.c (do_t_mov_cmp): Fix reporting of 
	unpredictable and deprecated mov register instructions.

gas/testsuite/ChangeLog:
2010-06-28  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* gas/arm/thumb2_bad_reg.s: Update mov register tests.
	* gas/arm/thumb2_bad_reg.l: Likewise.

-- 
Matthew Gretton-Dann
Principal Engineer - PDSW Tools
ARM Ltd
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