Franz Sirl <Franz.Sirl-kernel@lauterbach.com>

        * rs6000.c (rs6000_va_list): Type is an array.
        (rs6000_va_start): Don't doubly adjust for varargs.
        (rs6000_va_arg): Evaluate long long GPR adjustment.

From-SVN: r28408

gcc/ChangeLog

+1999-08-02  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
+
+	* rs6000.c (rs6000_va_list): Type is an array.
+	(rs6000_va_start): Don't doubly adjust for varargs.
+	(rs6000_va_arg): Evaluate long long GPR adjustment.
+
 Mon Aug  2 16:15:57 1999  David Edelsohn  <edelsohn@gnu.org>
 
 	* rs6000/aix43.h (SUBTARGET_SWITCHES): Use -m64 and -m32 instead of

gcc/config/rs6000/rs6000.h

@@ -1566,14 +1566,17 @@ typedef struct rs6000_args
 #define SETUP_INCOMING_VARARGS(CUM,MODE,TYPE,PRETEND_SIZE,NO_RTL) \
   setup_incoming_varargs (&CUM, MODE, TYPE, &PRETEND_SIZE, NO_RTL)
 
-/* If defined, is a C expression that produces the machine-specific
-   code for a call to `__builtin_saveregs'.  This code will be moved
-   to the very beginning of the function, before any parameter access
-   are made.  The return value of this function should be an RTX that
-   contains the value to use as the return of `__builtin_saveregs'.  */
+/* Define the `__builtin_va_list' type for the ABI.  */
+#define BUILD_VA_LIST_TYPE(VALIST) \
+  (VALIST) = rs6000_build_va_list ()
 
-#define EXPAND_BUILTIN_SAVEREGS() \
-  rs6000_expand_builtin_saveregs ()
+/* Implement `va_start' for varargs and stdarg.  */
+#define EXPAND_BUILTIN_VA_START(stdarg, valist, nextarg) \
+  rs6000_va_start (stdarg, valist, nextarg)
+
+/* Implement `va_arg'.  */
+#define EXPAND_BUILTIN_VA_ARG(valist, type) \
+  rs6000_va_arg (valist, type)
 
 /* This macro generates the assembly code for function entry.
    FILE is a stdio stream to output the code to.
@@ -3297,7 +3300,9 @@ extern struct rtx_def *function_arg ();
 extern int function_arg_partial_nregs ();
 extern int function_arg_pass_by_reference ();
 extern void setup_incoming_varargs ();
-extern struct rtx_def *rs6000_expand_builtin_saveregs ();
+extern union tree_node *rs6000_va_list ();
+extern void rs6000_va_start ();
+extern struct rtx_def *rs6000_va_arg ();
 extern struct rtx_def *rs6000_stack_temp ();
 extern int expand_block_move ();
 extern int load_multiple_operation ();