re PR c/27953 (ICE with invalid function definitions)

	PR c/27953
	* c-decl.c (store_parm_decls_oldstyle): Robustify
        * gcc.dg/pr27953.c: New test.

From-SVN: r119446

gcc/ChangeLog

+2006-12-02  Lee Millward  <lee.millward@codesourcery.com>
+
+	PR c/27953
+	* c-decl.c (store_parm_decls_oldstyle): Robustify.
+	
 2006-11-30  Jan Hubicka  <jh@suse.cz>
 	    Uros Bizjak  <ubizjak@gmail.com>
 

gcc/c-decl.c

@@ -6482,8 +6482,8 @@ store_parm_decls_oldstyle (tree fndecl, const struct c_arg_info *arg_info)
       tree type;
       for (parm = DECL_ARGUMENTS (fndecl),
 	     type = current_function_prototype_arg_types;
-	   parm || (type && (TYPE_MAIN_VARIANT (TREE_VALUE (type))
-			     != void_type_node));
+	   parm || (type && TREE_VALUE (type) != error_mark_node
+                   && (TYPE_MAIN_VARIANT (TREE_VALUE (type)) != void_type_node));
 	   parm = TREE_CHAIN (parm), type = TREE_CHAIN (type))
 	{
 	  if (parm == 0 || type == 0

gcc/testsuite/ChangeLog

+2006-12-02  Lee Millward  <lee.millward@codesourcery.com>
+
+       PR c/27953
+       * gcc.dg/pr27953.c: New test.
+
 2006-12-01  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
 	PR c++/30022

gcc/testsuite/gcc.dg/pr27953.C

+/* PR c/27953 */
+
+void foo(struct A a) {}  /* { dg-error "parameter list|definition|incomplete type" } */
+void foo() {}            /* { dg-error "redefinition" }
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