* config/sh/sh.c (regno_reg_class): Add GENERAL_REGS for

	soft frame pointer.
	(sh_expand_prologue): Use hard_frame_pointer_rtx instead
	of frame_pointer_rtx.
	(sh_expand_epilogue): Likewise.
	(sh_set_return_address): Likewise.
	(initial_elimination_offset): Use HARD_FRAME_POINTER_REGNUM
	instead of FRAME_POINTER_REGNUM if needed.  Add elimination
	offsets from FRAME_POINTER_REGNUM.
	* config/sh/sh.h (SH_REGISTER_NAMES_INITIALIZER): Add sfp.
	(sh_register_names): Add initializer for sfp.
	(GENERAL_OR_AP_REGISTER_P): Permit FRAME_POINTER_REGNUM.
	(VALID_REGISTER_P): Likewise.
	(FIRST_PSEUDO_REGISTER): Update.
	(DWARF_FRAME_REGISTERS): Define.
	(FIXED_REGISTERS, CALL_USED_REGISTERS): Add sfp.
	(HARD_FRAME_POINTER_REGNUM): Define.
	(FRAME_POINTER_REGNUM): Redefine.
	(ELIMINABLE_REGS): Never eliminate to FRAME_POINTER_REGNUM,
	but HARD_FRAME_POINTER_REGNUM instead.  Add eliminations
	from FRAME_POINTER_REGNUM.
	(CAN_ELIMINATE): Use HARD_FRAME_POINTER_REGNUM instead of
	FRAME_POINTER_REGNUM.
	(REG_CLASS_CONTENTS): Add sfp.
	(REG_ALLOC_ORDER): Likewise.
	(FRAME_GROWS_DOWNWARD): Set to 1.  Update comment.
	(GO_IF_LEGITIMATE_ADDRESS): Use hard_frame_pointer_rtx instead
	of frame_pointer_rtx.
	(LEGITIMIZE_RELOAD_ADDRESS): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102187 138bc75d-0d04-0410-961f-82ee72b054a4

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