Fix -O3 stdarg miscompilation.

	* config/v850/v850.c (current_function_anonymous_args): Delete.
	(expand_prologue): Use current_function_args_info.anonymous_args.
	(expand_epilogue): Delete use of current_function_anonymous_args.
	* config/v850/v850.h (struct cum_arg): Add anonymous_args field.
	(INIT_CUMULATIVE_ARGS): Clear anonymous_args field.
	(current_function_anonymous_args): Delete extern declaration.
	(SETUP_INCOMING_VARARGS): Set anonymous_args field.

From-SVN: r57363

gcc/ChangeLog

+2002-09-20  Jim Wilson  <wilson@redhat.com>
+
+	* config/v850/v850.c (current_function_anonymous_args): Delete.
+	(expand_prologue): Use current_function_args_info.anonymous_args.
+	(expand_epilogue): Delete use of current_function_anonymous_args.
+	* config/v850/v850.h (struct cum_arg): Add anonymous_args field.
+	(INIT_CUMULATIVE_ARGS): Clear anonymous_args field.
+	(current_function_anonymous_args): Delete extern declaration.
+	(SETUP_INCOMING_VARARGS): Set anonymous_args field.
+
 2002-09-20  Geoffrey Keating  <geoffk@apple.com>
 
 	* config/rs6000/rs6000.c (rs6000_emit_prologue): Update for change

gcc/config/v850/v850.c

@@ -61,9 +61,6 @@ static void v850_encode_data_area    PARAMS ((tree));
 static void v850_encode_section_info PARAMS ((tree, int));
 static const char *v850_strip_name_encoding PARAMS ((const char *));
 
-/* True if the current function has anonymous arguments.  */
-int current_function_anonymous_args;
-
 /* Information about the various small memory areas.  */
 struct small_memory_info small_memory[ (int)SMALL_MEMORY_max ] =
 {
@@ -1656,7 +1653,7 @@ expand_prologue ()
     }
 
   /* Save arg registers to the stack if necessary.  */
-  else if (current_function_anonymous_args)
+  else if (current_function_args_info.anonymous_args)
     {
       if (TARGET_PROLOG_FUNCTION)
 	{
@@ -2063,7 +2060,6 @@ Saved %d bytes via epilogue function (%d vs. %d) in function %s\n",
 	emit_jump_insn (gen_return ());
     }
 
-  current_function_anonymous_args = 0;
   v850_interrupt_cache_p = FALSE;
   v850_interrupt_p = FALSE;
 }

gcc/config/v850/v850.h

@@ -713,7 +713,7 @@ enum reg_class
    such as FUNCTION_ARG to determine where the next arg should go.  */
 
 #define CUMULATIVE_ARGS struct cum_arg
-struct cum_arg { int nbytes; };
+struct cum_arg { int nbytes; int anonymous_args; };
 
 /* Define where to put the arguments to a function.
    Value is zero to push the argument on the stack,
@@ -739,7 +739,7 @@ struct cum_arg { int nbytes; };
    For a library call, FNTYPE is 0.  */
 
 #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT)	\
- ((CUM).nbytes = 0)
+ ((CUM).nbytes = 0, (CUM).anonymous_args = 0)
 
 /* Update the data in CUM to advance over an argument
    of mode MODE and data type TYPE.
@@ -758,10 +758,9 @@ struct cum_arg { int nbytes; };
    space allocated by the caller.  */
 #define OUTGOING_REG_PARM_STACK_SPACE
 
-extern int current_function_anonymous_args;
 /* Do any setup necessary for varargs/stdargs functions.  */
 #define SETUP_INCOMING_VARARGS(CUM, MODE, TYPE, PAS, SECOND) \
-  current_function_anonymous_args = (!TARGET_GHS ? 1 : 0);
+  (CUM).anonymous_args = (!TARGET_GHS ? 1 : 0);
 
 /* Implement `va_arg'.  */
 #define EXPAND_BUILTIN_VA_ARG(valist, type) \