[Bug middle-end/67512] [5/6 Regression] internal compiler error: in invert_tree_comparison, at fold-const.c:2456

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67512

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
With the patch we don't ICE anymore but we lose this warning:

ice.c:10:3: warning: ‘z’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
   fn3 (z);
   ^
but I think that's not a fault of the patch.