[PING][Patch, ARM] Fix invalid immediate constant acceptance for carry-setting addw,subw.

[Tejas Belagod]

On Tue, 2010-08-24 at 08:47 +0100, Tejas Belagod wrote:
> Hi,
> 
> Widening carry-setting thumb2 add and sub accepted invalid immediates
> which were flat 12-bit encoded. ADDS.W and SUBS.W's immediates have to
> be modified immediate constants(unlike addw and subw). Attached is a
> patch that adds this check and fixes it in gas. Regression tested on
> arm-none-eabi.
> 
> OK?
> 
> --
> Tejas Belagod
> ARM.
> 
> gas/testsuite/
> 
> 2010-08-23 Tejas Belagod <tejas.belagod@arm.com>
> 
> 	* gas/arm/addsw-bad.s: New file.
> 	* gas/arm/addsw-bad.l: New file.
> 	* gas/arm/addsw-bad.d: New file.
> 
> gas/
> 
> 2010-08-23 Tejas Belagod <tejas.belagod@arm.com>
> 
> 	* config/tc-arm.c (md_apply_fix): Check if widened add, sub are
> 	flag-setting and handle accordingly.