* sparc.c (sparc_override_options): Force stack bias off for !arch64.
Care for flag_pcc_struct_return default.
(output_move_quad): Rewrite to move by halves on v9 and in the
proper direction.
(move_quad_direction): New function.
(output_fp_move_quad): Use it to determine the direction of copy.
(function_arg_slotno): Return -1 for FP reg overflow as well.
(function_arg_record_value*): New functions.
(function_arg): Use them. Streamline unprototyped parameter passing.
(function_arg_pass_by_reference): Pass TCmode by reference.
(function_value): New function.
* sparc.h (PTRDIFF_TYPE, SIZE_TYPE): For -pedantic's sake, don't use
long long in 64-bit mode.
(RETURN_IN_MEMORY): v9 returns structs < 32-bytes in regs.
(DEFAULT_PCC_STRUCT_RETURN): Make the default detectable.
(BASE_RETURN_VALUE_REG): Consider complex float types for arch64.
(BASE_OUTGOING_VALUE_REG, BASE_PASSING_ARG_REG): Likewise.
(BASE_INCOMING_ARG_REG): Likewise.
(FUNCTION_VALUE): Call function_value.
(FUNCTION_OUTGOING_VALUE, LIBCALL_VALUE): Likewise.
* sparc.md (movdi_sp32_v9): Disable for arch64.
(movsf, movdf, movtf): Sort all ulternatives using fp regs first.
(call_value_address_sp64): Remove register class constraints.
(call_value_symbolic_sp64): Likewise.
(nonlocal_goto): Pass label reg directly to goto_handlers. Constrain
v9 case to 32-bit constants.
(goto_handler_and_restore_v9): Provide a version for arch64.
* sparc/linux64.h (SIZE_TYPE, PTRDIFF_TYPE): Remove private definition.
* sparc/sp64-aout.h (TARGET_DEFAULT): Turn on stack bias.
(CPP_PREDEFINES): New.
* sparc/sp64-elf.h: Likewise.
(PREFERRED_DEBUGGING_TYPE): Dwarf2.
(ASM_OUTPUT_DWARF2_ADDR_CONST): New.
* sparc/sysv4.h (SIZE_TYPE, PTRDIFF_TYPE): Undo svr4.h's changes.
From-SVN: r19526
