[Bug middle-end/64247] program result depends on environment ?

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64247

--- Comment #3 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
(In reply to Richard Biener from comment #1)
> Are you sure you are not using uninitialized memory?  try using the various
> -fsanitize flags (not sure if uninit memory use is in =address or
> =undefined).

as a ps, uninit memory use in is neither, that would require memsan, which is
not ported to gcc.