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* 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. From-SVN: r102187
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