[Bug 33307] heap corruption with gcc 4.8.0

http://bugs.winehq.org/show_bug.cgi?id=33307

--- Comment #25 from Kirill K. Smirnov  2013-04-22 22:22:16 CDT ---
This code works too:
964:        memcpy_unaligned( buffer, DIR_Windows, len * sizeof(WCHAR) );
965:        memcpy( buffer + len, default_syswow64W, sizeof(default_syswow64W)
);
966:        DIR_SysWow64 = buffer;

It seems gcc incorrectly optimizes bulk of memcpy() function calls one after
another, not just single memcpy().