arm.c (use_return_insn): Use offsets->saved_regs_mask instead of {arm,thumb}_compute_...

arm.c (use_return_insn): Use offsets->saved_regs_mask instead of {arm,thumb}_compute_save_reg_mask.

2008-03-12  Paul Brook  <paul@codesourcery.com>

	gcc/
	* config/arm/arm.c (use_return_insn): Use offsets->saved_regs_mask
	instead of {arm,thumb}_compute_save_reg_mask.
	(output_return_instruction): Ditto.
	(thumb_unexpanded_epilogue): Ditto.
	(thumb1_expand_prologue): Ditto.
	(thumb1_output_function_prologue): Ditto.
	(arm_set_return_address): Ditto.
	(thumb_set_return_address): Ditto.
	(arm_get_frame_offsets): Set offsets->saved_regs_mask.  Push extra
	regs to achieve stack alignment.
	(thumb1_compute_save_reg_mask): Fix compiler warning.
	(arm_output_epilogue): Use offsets->saved_regs_mask.
	Adjust stack pointer by poping call clobered registers.
	(arm_expand_prologue): Use offsets->saved_regs_mask.
	Adjust stack pointer by pushing extra registers.
	* gcc/config/arm.h (arm_stack_offsets): Add saved_regs_mask.

From-SVN: r133148