sp64-elf.h (TARGET_DEFAULT): Delete MASK_STACK_BIAS.

	* sparc/sp64-elf.h (TARGET_DEFAULT): Delete MASK_STACK_BIAS.
	* sparc/sparc.h (PROMOTE_MODE): Promote small ints if arch64.
	(PROMOTE_FUNCTION_ARGS,PROMOTE_FUNCTION_RETURN): Define.
	(SPARC_FIRST_FP_REG, SPARC_FP_REG_P): New macros.
	(SPARC_{OUTGOING,INCOMING}_INT_ARG_FIRST): New macros.
	(SPARC_FP_ARG_FIRST): New macro.
	(CONDITIONAL_REGISTER_USAGE): All v9 fp regs are volatile now.
	(REG_ALLOC_ORDER,REG_LEAF_ALLOC_ORDER): Reorganize fp regs.
	(NPARM_REGS): There are 32 fp argument registers now.
	(FUNCTION_ARG_REGNO_P): Likewise.
	(FIRST_PARM_OFFSET): Update to new v9 abi.
	(REG_PARM_STACK_SPACE): Define for arch64.
	(enum sparc_arg_class): Delete.
	(sparc_arg_count,sparc_n_named_args): Delete.
	(struct sparc_args): Redefine and use for arch32 as well as arch64.
	(GET_SPARC_ARG_CLASS,ROUND_REG,ROUND_ADVANCE): Delete.
	(FUNCTION_ARG_ADVANCE): Rewrite.
	(FUNCTION_ARG,FUNCTION_INCOMING_ARG): Rewrite.
	(FUNCTION_ARG_{PARTIAL_NREGS,PASS_BY_REFERENCE}): Rewrite.
	(FUNCTION_ARG_CALLEE_COPIES): Delete.
	(FUNCTION_ARG_{PADDING,BOUNDARY}): Define.
	(STRICT_ARGUMENT_NAMING): Define.
	(doublemove_string): Declare.
	* sparc/sparc.c (sparc_arg_count,sparc_n_named_args): Delete.
	(single_move_string): Use GEN_INT, and HOST_WIDE_INT.
	(doublemove_string): New function.
	(output_move_quad): Clean up some of the arch64 support.
	(compute_frame_size): Add REG_PARM_STACK_SPACE if arch64.
	Don't add 8 bytes of reserved space if arch64.
	(sparc_builtin_saveregs): Combine arch32/arch64 versions.
	(init_cumulative_args): New function.
	(function_arg_slotno): New static function.
	(function_arg,function_arg_partial_nregs): New functions.
	(function_arg_{pass_by_reference,advance}): New functions.
	(function_arg_padding): New function.
First pass at updating to current v9 abi.

From-SVN: r15968

gcc/config/sparc/sp64-elf.h

 /* Definitions of target machine for GNU compiler, for SPARC64, ELF.
-   Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
    Contributed by Doug Evans, dje@cygnus.com.
 
 This file is part of GNU CC.
@@ -19,7 +19,7 @@ along with GNU CC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-/* This is a v9 only compiler.  -mv8 is not expected to work.  If you want
+/* This is a v9 only compiler.  -mcpu=v8 is not expected to work.  If you want
    a v8/v9 compiler, this isn't the place to do it.  */
 
 #define SPARC_V9 1	/* See sparc.h.  */
@@ -35,13 +35,15 @@ Boston, MA 02111-1307, USA.  */
 #undef TARGET_VERSION
 #define TARGET_VERSION fprintf (stderr, " (sparc64-elf)")
 
-/* A v9 compiler with stack-bias, 32 bit integers and 64 bit pointers,
-   in a Medium/Anywhere code model environment.  */
+/* A v9 compiler without stack-bias, lp64 sizes,
+   in a Medium/Anywhere code model environment.
+   There is no stack bias as this configuration is intended for
+   embedded systems.  */
 
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT \
-  (MASK_V9 + MASK_ARCH64 + MASK_PTR64 + MASK_HARD_QUAD \
-   + MASK_STACK_BIAS + MASK_MEDANY + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU)
+  (MASK_V9 + MASK_ARCH64 + MASK_PTR64 + MASK_LONG64 + MASK_HARD_QUAD \
+   MASK_MEDANY + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU)
 
 /* __svr4__ is used by the C library */
 /* ??? __arch64__ is subject to change.  */
@@ -120,6 +122,7 @@ crtbegin.o%s \
 /* The medium/anywhere code model practically requires us to put jump tables
    in the text section as gcc is unable to distinguish LABEL_REF's of jump
    tables from other label refs (when we need to).  */
+/* ??? Revisit this.  */
 #undef JUMP_TABLES_IN_TEXT_SECTION
 #define JUMP_TABLES_IN_TEXT_SECTION