re PR c/67106 (ICE: verify_type failed: type variant differs by TYPE_PACKED.…

re PR c/67106 (ICE: verify_type failed:  type variant differs by TYPE_PACKED. with -g -fpack-struct)


	PR c/67106
	* gcc.c-torture/compile/pr67106.c: New testcase.
	* c-decl.c: Set TYPE_PACKED in variants.

From-SVN: r231049

gcc/c/ChangeLog

+2015-11-29  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR c/67106
+	* c-decl.c: Set TYPE_PACKED in variants.
+
 2015-11-27  Martin Liska  <mliska@suse.cz>
 
 	PR c++/68312

gcc/c/c-decl.c

@@ -7213,7 +7213,8 @@ start_struct (location_t loc, enum tree_code code, tree name,
     }
 
   C_TYPE_BEING_DEFINED (ref) = 1;
-  TYPE_PACKED (ref) = flag_pack_struct;
+  for (tree v = TYPE_MAIN_VARIANT (ref); v; v = TYPE_NEXT_VARIANT (v))
+    TYPE_PACKED (v) = flag_pack_struct;
 
   *enclosing_struct_parse_info = struct_parse_info;
   struct_parse_info = XNEW (struct c_struct_parse_info);

gcc/testsuite/ChangeLog

 2015-11-29  Jan Hubicka  <hubicka@ucw.cz>
 
+	PR c/67106
+	* gcc.c-torture/compile/pr67106.c: New testcase.
+
+2015-11-29  Jan Hubicka  <hubicka@ucw.cz>
+
 	PR c/67581
 	* g++.dg/torture/pr67581.C: New testcase.
 

gcc/testsuite/gcc.c-torture/compile/pr67106.c

+/* { dg-options "-g -fpack-struct" } */
+typedef struct S S;
+
+struct S
+{
+  struct
+  {
+    S *s;
+  };
+  int a;
+};
+