[Bug tree-optimization/71867] Optimizer generates code dereferencing a null pointer

[asmwarrior at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71867

--- Comment #12 from asmwarrior <asmwarrior at gmail dot com> ---
Hi, (In reply to Jonathan Wakely from comment #11)
> Does this code still get miscompiled with GCC 6 and newer?

Hi, I'm now using mingw-build i686-7.2.0-release-posix-dwarf-rt_v5-rev1, which
was downloaded from:
https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/mingw-builds/7.2.0/threads-posix/dwarf/i686-7.2.0-release-posix-dwarf-rt_v5-rev1.7z/download

I don't see such crash bug since 2018-02-09. (See this post in C::B forum:
http://forums.codeblocks.org/index.php/topic,22198.msg152596.html#msg152596)