arm.h (arm_class_likely_spilled_p): Check against LO_REGS only for Thumb-1.

arm.h (arm_class_likely_spilled_p): Check against LO_REGS only for Thumb-1.

2011-03-06  Andrew Stubbs  <ams@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Mark Shinwell  <shinwell@codesourcery.com>

	gcc/
	* config/arm/arm.h (arm_class_likely_spilled_p): Check against
	LO_REGS only for Thumb-1.
	(MODE_BASE_REG_CLASS): Restrict base registers to those which can
	be used in short instructions when optimising for size on Thumb-2.

Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Mark Shinwell <shinwell@codesourcery.com>
From-SVN: r172032