Bug 13470 – Crash with final struct containing anonymous union

The only changes I had made between the last build and the one that prompted the crash was the addition of a new struct type The structure definition: http://pastebin.com/bLEDG4KJ The crash report: radverbial@radverbial-M68MT-D3:~/dansworld$ ./build.sh dmd: struct.c:419: static void AggregateDeclaration::alignmember(structalign_t, unsigned int, unsigned int*): Assertion `alignment > 0 && !(alignment & (alignment - 1))' failed. ./build.sh: line 6: 8068 Aborted (core dumped) dmd main_o.d templates.d engine/dialogue.d engine/base.d engine/entity.d engine/entities.d engine/area.d engine/areas.d engine/world_o.d engine/item.d engine/items.d basic_types.d system_o.d -release -O -inline

(In reply to 1199223 from comment #0) > The structure definition: > http://pastebin.com/bLEDG4KJ Do not use external website to show issue code. It may be lost accidentally. And, your code is not enough to reproduce compiler crash. The code: public final struct Object { @safe public final pure { mixin(__ObjCtor("Tangible")); mixin(__ObjCtor("Entity")); mixin(__ObjCtor("Item")); mixin(__ObjChk("is_entity", "OBJ_Entity")); mixin(__ObjChk("is_tangible", "OBJ_Tangible")); mixin(__ObjChk("is_item", "OBJ_Item")); } private enum : uint8 { OBJ_Tangible = 0, OBJ_Item, OBJ_Entity } uint8 identity=0; uint8 flags=0; union { Item Item_; Entity Entity_; Tangible Tangible_; }; } Prints: test.d(5): Error: undefined identifier __ObjCtor test.d(6): Error: undefined identifier __ObjCtor test.d(7): Error: undefined identifier __ObjCtor test.d(9): Error: undefined identifier __ObjChk test.d(10): Error: undefined identifier __ObjChk test.d(11): Error: undefined identifier __ObjChk test.d(13): Error: undefined identifier uint8 test.d(19): Error: undefined identifier uint8 test.d(20): Error: undefined identifier uint8 test.d(23): Error: undefined identifier Item, did you mean variable Item_? test.d(24): Error: undefined identifier Entity, did you mean variable Entity_? test.d(25): Error: undefined identifier Tangible, did you mean variable Tangible_? With the latest release 2.066.1.

Incomplete testcase, no reply in 2 years, closing.