re PR c/27420 (ICE on invalid function definition)

	PR c/27420
	* c-common.c (self_promoting_args_p): Skip erroneous args.

	* gcc.dg/func-args-2.c: New test.

From-SVN: r113976

gcc/ChangeLog

 2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
+	PR c/27420
+	* c-common.c (self_promoting_args_p): Skip erroneous args.
+
 	PR c/26818
 	* c-decl.c (finish_struct): Skip erroneous fields.
 

gcc/c-common.c

@@ -3547,6 +3547,9 @@ self_promoting_args_p (tree parms)
     {
       tree type = TREE_VALUE (t);
 
+      if (type == error_mark_node)
+	continue;
+
       if (TREE_CHAIN (t) == 0 && type != void_type_node)
 	return 0;
 

gcc/testsuite/ChangeLog

 2006-05-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
+	PR c/27420
+	* gcc.dg/func-args-2.c: New test.
+
 	PR c/26818
 	* gcc.dg/struct-incompl-1.c: New test.
 

gcc/testsuite/gcc.dg/func-args-2.c

+/* PR c/27420 */
+/* { dg-do compile } */
+/* { dg-options "-w" } */
+
+void foo();
+void foo(struct A a) {}  /* { dg-error "incomplete type" } */