combine.c (force_to_mode): Remove STACK_BIAS code.

combine.c (force_to_mode): Remove STACK_BIAS code.

        * combine.c (force_to_mode): Remove STACK_BIAS code.
        (nonzero_bits): Likewise.  Replace sp/fp special case with
        REGNO_POINTER_ALIGN.

        * config/sparc/sparc.h (FRAME_POINTER_REGNUM): Change to SFP.
        (HARD_FRAME_POINTER_REGNUM): New.
        (FIRST_PSEUDO_REGISTER, REG_CLASS_CONTENTS): Update.
        (FIXED_REGS, CALL_USED_REGS): Update.
        (REG_ALLOC_ORDER, REGISTER_NAMES): Update.
        (CONDITIONAL_REGISTER_USAGE): Update for HFP.
        (HARD_REGNO_NREGS): Update for SFP.
        (STACK_POINTER_OFFSET): Include bias here ...
        (FIRST_PARM_OFFSET): ... not here.
        (STACK_BIAS): Remove.
        (INIT_EXPANDERS): New.
        (STARTING_FRAME_OFFSET): Do not include bias.
        (ELIMINABLE_REGS, CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): New.
        (REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P): Update for SFP.
        (REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Likewise.
        * config/sparc/aout.h (DBX_REGISTER_NUMBER): Update for HFP.
        * config/sparc/litecoff.h, config/sparc/sol2.h: Likewise.
        * config/sparc/sparc.c (mem_min_alignment): Update for HFP.
        (sparc_nonflat_function_prologue, epilogue_renumber): Likewise.
        (MUST_SAVE_REGISTER): Likewise.
        (sparc_flat_function_prologue): Likewise.
        (sparc_flat_function_epilogue): Likewise.
        (HARD_FRAME_POINTER_MASK): Rename from FRAME_POINTER_MASK.
        (sparc_init_modes): SFP is GENERAL_REGS.
        (sparc_builtin_saveregs): SFP does not have bias applied.

From-SVN: r49486