[PATCH, ARM] MSR/MRS assembly and disassembly tweaks

[Hans-Peter Nilsson]

> Date: Mon, 4 Apr 2011 15:07:28 +0100
> From: Julian Brown <julian@codesourcery.com>

> This patch improves handling of MSR and MRS instructions in GAS, and
> also improves disassembly output in a couple of cases.

Please fix the resulting fallout from the src/sim testsuite for
arm-elf with the arm-sim board.  It has regressed in the last
24h, like so:

Running /tmp/hpautotest-sim/src/sim/testsuite/sim/arm/allinsn.exp ...
Testing adc.cgs on machine xscale.
Executing on host: arm-elf-as /tmp/hpautotest-sim/src/sim/testsuite/sim/arm/adc.cgs  -I/tmp/hpautotest-sim/src/sim/testsuite/sim/arm  -o adc.cgs.o    (timeout = 300)
/tmp/hpautotest-sim/src/sim/testsuite/sim/arm/adc.cgs: Assembler messages:
/tmp/hpautotest-sim/src/sim/testsuite/sim/arm/adc.cgs:15: Error: selected processor does not support requested special purpose register -- `mrs r1,cpsr'

I guess it could be Nick's recent patch, but...nah.

brgds, H-P