re PR c++/33289 (__sprintf_chk etc. not DECL_ANTICIPATED)

	PR c++/33289
	* decl.c (builtin_function_1): Set DECL_ANTICIPATED also
	on __*_chk non-__builtin_* decls.

	* g++.dg/eh/builtin4.C: New test.

From-SVN: r128160

gcc/cp/ChangeLog

@@ -3,6 +3,10 @@
 	* decl.c (duplicate_decls): Set TREE_NOTHROW on __builtin_XX
 	decl if a prototype for XX is provided with throw().
 
+	PR c++/33289
+	* decl.c (builtin_function_1): Set DECL_ANTICIPATED also
+	on __*_chk non-__builtin_* decls.
+
 2007-09-05  Paolo Carlini  <pcarlini@suse.de>
 
 	PR c++/30302

gcc/cp/decl.c

@@ -3528,6 +3528,17 @@ builtin_function_1 (tree decl, tree context)
      anticipated but not actually declared.  */
   if (name[0] != '_' || name[1] != '_')
     DECL_ANTICIPATED (decl) = 1;
+  else if (strncmp (name + 2, "builtin_", strlen ("builtin_")) != 0)
+    {
+      size_t len = strlen (name);
+
+      /* Treat __*_chk fortification functions as anticipated as well,
+	 unless they are __builtin_*.  */
+      if (len > strlen ("___chk")
+	  && memcmp (name + len - strlen ("_chk"),
+		     "_chk", strlen ("_chk") + 1) == 0)
+	DECL_ANTICIPATED (decl) = 1;
+    }
 
   return decl;
 }

gcc/testsuite/ChangeLog

@@ -4,6 +4,9 @@
 	* g++.dg/eh/builtin2.C: New test.
 	* g++.dg/eh/builtin3.C: New test.
 
+	PR c++/33289
+	* g++.dg/eh/builtin4.C: New test.
+
 2007-09-05  Janis Johnson  <janis187@us.ibm.com>
 
 	* gcc.target/powerpc/dfp-dd.c: New test.

gcc/testsuite/g++.dg/eh/builtin4.C

+// PR c++/33289
+// { dg-do compile }
+
+typedef __SIZE_TYPE__ size_t;
+extern "C" int __sprintf_chk (char *__restrict, int, size_t, const char *, ...) throw ();
+extern "C" int __sprintf_chk (char *__restrict, int, size_t, const char *, ...) throw ();