alpha.c (alpha_sa_size): Force procedure type to PT_STACK when frame_pointer_needed...

alpha.c (alpha_sa_size): Force procedure type to PT_STACK when frame_pointer_needed on OpenVMS.

	* config/alpha/alpha.c (alpha_sa_size): Force procedure type to
	PT_STACK when frame_pointer_needed on OpenVMS.
	(alpha_pv_save_size, alpha_using_fp): Remove.
	(alpha_vms_can_eliminate): New function. Support for CAN_ELIMINATE
	with proper processing for PT_NULL.
	(alpha_vms_initial_elimination_offset): New function. Support for
	INITIAL_ELIMINATION_OFFSET with proper processing for PT_NULL.
	(alpha_sa_size): Force procedure type to PT_STACK when
	frame_pointer_needed on OpenVMS.
	* config/alpha/alpha-protos.h (alpha_pv_save_size): Remove prototype.
	(alpha_using_fp): Likewise.
	(alpha_vms_can_eliminate): Add prototype.
	(alpha_vms_initial_elimination_offset): Likewise.
	* config/alpha/vms.h (CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET):
	Call alpha_vms_can_eliminate and alpha_vms_initial_elimination_offset.

Co-Authored-By: Douglas B Rupp <rupp@gnat.com>
From-SVN: r150646