re PR c++/84636 (internal compiler error: Segmentation fault (identifier_p()/grokdeclarator()))

/cp
2018-12-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84636
	* decl.c (grokdeclarator): Avoid crashing on an anonymous bit-field
	with function type.

/testsuite
2018-12-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84636
	* g++.dg/parse/bitfield6.C: New.

From-SVN: r266807

gcc/cp/ChangeLog

+2018-12-04  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/84636
+	* decl.c (grokdeclarator): Avoid crashing on an anonymous bit-field
+	with function type.
+
 2018-12-04  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/88184 - ICE when treating name as template-name.

gcc/cp/decl.c

@@ -12187,7 +12187,8 @@ grokdeclarator (const cp_declarator *declarator,
     }
 
   if (ctype && TREE_CODE (type) == FUNCTION_TYPE && staticp < 2
-      && !(identifier_p (unqualified_id)
+      && !(unqualified_id
+	   && identifier_p (unqualified_id)
 	   && IDENTIFIER_NEWDEL_OP_P (unqualified_id)))
     {
       cp_cv_quals real_quals = memfn_quals;
@@ -12267,8 +12268,7 @@ grokdeclarator (const cp_declarator *declarator,
 	    error ("invalid use of %<::%>");
 	    return error_mark_node;
 	  }
-	else if (TREE_CODE (type) == FUNCTION_TYPE
-		 || TREE_CODE (type) == METHOD_TYPE)
+	else if (FUNC_OR_METHOD_TYPE_P (type) && unqualified_id)
 	  {
 	    int publicp = 0;
 	    tree function_context;

gcc/testsuite/ChangeLog

+2018-12-04  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/84636
+	* g++.dg/parse/bitfield6.C: New.
+
 2018-12-04  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/87320

gcc/testsuite/g++.dg/parse/bitfield6.C

+// PR c++/84636
+
+typedef void a();
+struct A {
+a: 1;  // { dg-error "bit-field .\\<anonymous\\>. with non-integral type" }
+};