Make rs6000_invalid_builtin static.

2019-12-02  Bill Schmidt  <wschmidt@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_invalid_builtin): Make
	static.
	* config/rs6000/rs6000-internal.h (rs6000_invalid_builtin): Remove
	decl.

From-SVN: r278911

gcc/ChangeLog

+2019-12-02  Bill Schmidt  <wschmidt@linux.ibm.com>
+
+        * config/rs6000/rs6000-call.c (rs6000_invalid_builtin): Make
+        static.
+        * config/rs6000/rs6000-internal.h (rs6000_invalid_builtin): Remove
+        decl.
+
 2019-12-02  Richard Sandiford  <richard.sandiford@arm.com>
 
 	PR middle-end/92741

gcc/config/rs6000/rs6000-call.c

@@ -5091,7 +5091,7 @@ rs6000_builtin_is_supported_p (enum rs6000_builtins fncode)
 /* Raise an error message for a builtin function that is called without the
    appropriate target options being set.  */
 
-void
+static void
 rs6000_invalid_builtin (enum rs6000_builtins fncode)
 {
   size_t uns_fncode = (size_t) fncode;

gcc/config/rs6000/rs6000-internal.h

@@ -138,7 +138,6 @@ extern void rs6000_output_mi_thunk (FILE *file,
 				    tree function);
 extern bool rs6000_output_addr_const_extra (FILE *file, rtx x);
 extern bool rs6000_gimple_fold_builtin (gimple_stmt_iterator *gsi);
-extern void rs6000_invalid_builtin (enum rs6000_builtins fncode);
 extern tree rs6000_build_builtin_va_list (void);
 extern void rs6000_va_start (tree valist, rtx nextarg);
 extern tree rs6000_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,