re PR c/18809 (ICE after a couple of errors with a simple invalid C code)

	PR c/18809
	* c-typeck.c (convert_arguments): Check for error_mark_node.

	* gcc.dg/pr18809-1.c: New test.

From-SVN: r94049

gcc/ChangeLog

+2005-01-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c/18809
+	* c-typeck.c (convert_arguments): Check for error_mark_node.
+
 2005-01-20  Ian Lance Taylor  <ian@airs.com>
 
 	PR tree-optimization/13000

gcc/c-typeck.c

@@ -2067,7 +2067,7 @@ convert_arguments (tree typelist, tree values, tree function, tree fundecl)
 	  /* Formal parm type is specified by a function prototype.  */
 	  tree parmval;
 
-	  if (!COMPLETE_TYPE_P (type))
+	  if (type == error_mark_node || !COMPLETE_TYPE_P (type))
 	    {
 	      error ("type of formal parameter %d is incomplete", parmnum + 1);
 	      parmval = val;

gcc/testsuite/ChangeLog

+2005-01-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c/18809
+	* gcc.dg/pr18809-1.c: New test.
+
 2005-01-21  Ian Lance Taylor  <ian@airs.com>
 
 	* gcc.dg/20050121-1.c: New test.

gcc/testsuite/gcc.dg/pr18809-1.c

+/* PR c/18809 */
+/* Origin: Andrew Pinski <pinskia@gcc.gnu.org> */
+
+/* { dg-do compile } */
+
+void foo(enum E e) {}   /* { dg-error "" } */
+void bar() { foo(0); }  /* { dg-error "formal" } */