function.c (assign_parms): Don't set pretend_args_size if REG_PARM_STACK_SPACE.

2003-01-08  Dale Johannesen  <dalej@apple.com>

        * function.c (assign_parms):  Don't set pretend_args_size if
          REG_PARM_STACK_SPACE.
          config/rs6000/rs6000.c (setup_incoming_varargs):  Don't set
          pretend_args_size.

From-SVN: r61063

gcc/ChangeLog

+2003-01-08  Dale Johannesen  <dalej@apple.com>
+ 
+        * function.c (assign_parms):  Don't set pretend_args_size if 
+	  REG_PARM_STACK_SPACE.
+          config/rs6000/rs6000.c (setup_incoming_varargs):  Don't set 
+	  pretend_args_size.
+
 2003-01-08  Nathanael Nerode  <neroden@gcc.gnu.org>
 
 	* gcc.hlp: Delete.

gcc/config/rs6000/rs6000.c

@@ -3325,7 +3325,7 @@ setup_incoming_varargs (cum, mode, type, pretend_size, no_rtl)
      CUMULATIVE_ARGS *cum;
      enum machine_mode mode;
      tree type;
-     int *pretend_size;
+     int *pretend_size ATTRIBUTE_UNUSED;
      int no_rtl;
 
 {
@@ -3380,9 +3380,6 @@ setup_incoming_varargs (cum, mode, type, pretend_size, no_rtl)
 	(GP_ARG_MIN_REG + first_reg_offset, mem,
 	 GP_ARG_NUM_REG - first_reg_offset,
 	 (GP_ARG_NUM_REG - first_reg_offset) * UNITS_PER_WORD);
-
-      /* ??? Does ABI_V4 need this at all?  */
-      *pretend_size = (GP_ARG_NUM_REG - first_reg_offset) * UNITS_PER_WORD;
     }
 
   /* Save FP registers if needed.  */

gcc/function.c

@@ -4477,6 +4477,12 @@ assign_parms (fndecl)
 
 	  if (nregs > 0)
 	    {
+#if defined (REG_PARM_STACK_SPACE) && !defined (MAYBE_REG_PARM_STACK_SPACE)
+	      /* When REG_PARM_STACK_SPACE is nonzero, stack space for
+		 split parameters was allocated by our caller, so we
+		 won't be pushing it in the prolog.  */
+	      if (REG_PARM_STACK_SPACE (fndecl) == 0)
+#endif
 	      current_function_pretend_args_size
 		= (((nregs * UNITS_PER_WORD) + (PARM_BOUNDARY / BITS_PER_UNIT) - 1)
 		   / (PARM_BOUNDARY / BITS_PER_UNIT)