* 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