re PR middle-end/56167 (ICE with invalid __attribute__ arguments)

	PR middle-end/56167
	* c-common.c (handle_error_attribute): Fix condition.

	* gcc.dg/pr56167.c: New test.

From-SVN: r195748

gcc/c-family/ChangeLog

+2013-02-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/56167
+	* c-common.c (handle_error_attribute): Fix condition.
+
 2013-01-30  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/55742

gcc/c-family/c-common.c

@@ -6678,7 +6678,7 @@ handle_error_attribute (tree *node, tree name, tree args,
 			int ARG_UNUSED (flags), bool *no_add_attrs)
 {
   if (TREE_CODE (*node) == FUNCTION_DECL
-      || TREE_CODE (TREE_VALUE (args)) == STRING_CST)
+      && TREE_CODE (TREE_VALUE (args)) == STRING_CST)
     /* Do nothing else, just set the attribute.  We'll get at
        it later with lookup_attribute.  */
     ;

gcc/testsuite/ChangeLog

+2013-02-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/56167
+	* gcc.dg/pr56167.c: New test.
+
 2013-02-04  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	PR target/55146

gcc/testsuite/gcc.dg/pr56167.c

+/* PR middle-end/56167 */
+/* { dg-do compile } */
+
+extern void foo (void) __attribute__ ((error (0)));	/* { dg-warning "attribute ignored" } */
+extern void bar (void) __attribute__ ((warning (0)));	/* { dg-warning "attribute ignored" } */
+int var __attribute__ ((error ("foo")));		/* { dg-warning "attribute ignored" } */
+
+int
+main ()
+{
+  foo ();
+  bar ();
+  var++;
+  return 0;
+}