iq2000.c (iq2000_function_value): Make static, add new 'outgoing' argument.

	* config/iq2000/iq2000.c (iq2000_function_value): Make static, add
	new 'outgoing' argument.
	(iq2000_libcall_value, iq2000_function_value_regno_p): New functions.
	(TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE): Declare.
	* config/iq2000/iq2000.h: (FUNCTION_VALUE_REGNO_P): Redefine, use
	iq2000_function_value_regno_p.
	(FUNCTION_VALUE, LIBCALL_VALUE): Remove.
	* config/iq2000/iq2000-protos.h (iq2000_function_value_regno_p):
	Declare.

From-SVN: r154184

gcc/ChangeLog

+2009-11-14  Anatoly Sokolov  <aesok@post.ru>
+
+	* config/iq2000/iq2000.c (iq2000_function_value): Make static, add
+	new 'outgoing' argument.
+	(iq2000_libcall_value, iq2000_function_value_regno_p): New functions.
+	(TARGET_FUNCTION_VALUE, TARGET_LIBCALL_VALUE): Declare.
+	* config/iq2000/iq2000.h: (FUNCTION_VALUE_REGNO_P): Redefine, use
+	iq2000_function_value_regno_p.
+	(FUNCTION_VALUE, LIBCALL_VALUE): Remove.
+	* config/iq2000/iq2000-protos.h (iq2000_function_value_regno_p):
+	Declare.
+
 2009-11-14  Richard Earnshaw  <rearnsha@arm.com>
 
 	PR target/42031

gcc/config/iq2000/iq2000-protos.h

@@ -47,7 +47,7 @@ extern void             gen_conditional_branch (rtx *, enum machine_mode);
 extern void             init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
 extern void             function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode, tree, int);
 extern struct rtx_def * function_arg (CUMULATIVE_ARGS *, enum machine_mode, const_tree, int);
-extern rtx              iq2000_function_value (const_tree, const_tree);
+extern bool 		iq2000_function_value_regno_p (const unsigned int);
 #endif
 
 #endif /* ! GCC_IQ2000_PROTOS_H */

gcc/config/iq2000/iq2000.c

@@ -168,6 +168,8 @@ static bool iq2000_legitimate_address_p (enum machine_mode, rtx, bool);
 static bool iq2000_can_eliminate      (const int, const int);
 static void iq2000_asm_trampoline_template (FILE *);
 static void iq2000_trampoline_init    (rtx, tree, rtx);
+static rtx iq2000_function_value      (const_tree, const_tree, bool);
+static rtx iq2000_libcall_value       (enum machine_mode, const_rtx);
 
 #undef  TARGET_INIT_BUILTINS
 #define TARGET_INIT_BUILTINS 		iq2000_init_builtins
@@ -197,6 +199,10 @@ static void iq2000_trampoline_init    (rtx, tree, rtx);
 #undef  TARGET_PROMOTE_PROTOTYPES
 #define TARGET_PROMOTE_PROTOTYPES	hook_bool_const_tree_true
 
+#undef TARGET_FUNCTION_VALUE
+#define TARGET_FUNCTION_VALUE 		iq2000_function_value
+#undef TARGET_LIBCALL_VALUE
+#define TARGET_LIBCALL_VALUE		iq2000_libcall_value
 #undef  TARGET_RETURN_IN_MEMORY
 #define TARGET_RETURN_IN_MEMORY		iq2000_return_in_memory
 #undef  TARGET_PASS_BY_REFERENCE
@@ -2210,18 +2216,47 @@ iq2000_select_section (tree decl, int reloc ATTRIBUTE_UNUSED,
 /* Return register to use for a function return value with VALTYPE for function
    FUNC.  */
 
-rtx
-iq2000_function_value (const_tree valtype, const_tree func)
+static rtx
+iq2000_function_value (const_tree valtype,
+		       const_tree fn_decl_or_type,
+		       bool outgoing ATTRIBUTE_UNUSED)
 {
   int reg = GP_RETURN;
   enum machine_mode mode = TYPE_MODE (valtype);
   int unsignedp = TYPE_UNSIGNED (valtype);
+  tree func = fn_decl_or_type;
+
+  if (fn_decl_or_type
+      && !DECL_P (fn_decl_or_type))
+    fn_decl_or_type = NULL;
 
   /* Since we promote return types, we must promote the mode here too.  */
   mode = promote_function_mode (valtype, mode, &unsignedp, func, 1);
 
   return gen_rtx_REG (mode, reg);
 }
+
+/* Worker function for TARGET_LIBCALL_VALUE.  */
+
+static rtx
+iq2000_libcall_value (enum machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED)
+{
+  return gen_rtx_REG (((GET_MODE_CLASS (mode) != MODE_INT
+	                || GET_MODE_SIZE (mode) >= 4)
+	               ? mode : SImode),
+	              GP_RETURN);
+}
+
+/* Worker function for FUNCTION_VALUE_REGNO_P.
+
+   On the IQ2000, R2 and R3 are the only register thus used.  */
+
+bool
+iq2000_function_value_regno_p (const unsigned int regno)
+{
+  return (regno == GP_RETURN);
+}
+
 
 /* Return true when an argument must be passed by reference.  */
 

gcc/config/iq2000/iq2000.h

@@ -422,20 +422,9 @@ typedef struct iq2000_args
   (((N) >= GP_ARG_FIRST && (N) <= GP_ARG_LAST))			
 
 
-/* How Scalar Function Values are Returned.  */
-
-#define FUNCTION_VALUE(VALTYPE, FUNC)	iq2000_function_value (VALTYPE, FUNC)
-
-#define LIBCALL_VALUE(MODE)				\
-  gen_rtx_REG (((GET_MODE_CLASS (MODE) != MODE_INT	\
-		 || GET_MODE_SIZE (MODE) >= 4)		\
-		? (MODE)				\
-		: SImode),				\
-	       GP_RETURN)
-
 /* On the IQ2000, R2 and R3 are the only register thus used.  */
 
-#define FUNCTION_VALUE_REGNO_P(N) ((N) == GP_RETURN)
+#define FUNCTION_VALUE_REGNO_P(N) iq2000_function_value_regno_p (N)
 
 
 /* How Large Values are Returned.  */