From da6ab01cbce6ba48efbb6a6dd4cf3875cc500fb1 Mon Sep 17 00:00:00 2001
From: Martin Nowak <code@dawg.eu>
Date: Tue, 13 Feb 2018 16:33:28 +0100
Subject: [PATCH] zero class storage when initializer is null

- all zero initializers are not stored in the typeinfo although
  classes currently always come with a non-zero vtable
---
 src/core/thread.d | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/thread.d b/src/core/thread.d
index 400785740d..03aa36d401 100644
--- a/src/core/thread.d
+++ b/src/core/thread.d
@@ -2104,6 +2104,8 @@ extern (C) void thread_term() @nogc
     _d_monitordelete_nogc(Thread.sm_main);
     if (typeid(Thread).initializer.ptr)
         _mainThreadStore[] = typeid(Thread).initializer[];
+    else
+        (cast(ubyte[])_mainThreadStore)[] = 0;
     Thread.sm_main = null;
 
     assert(Thread.sm_tbeg && Thread.sm_tlen == 1);