[Bug c/58236] -Wuninitialized doesn't report uninitialised variable as expected

[noufal at nibrahim dot net.in]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58236

--- Comment #2 from Noufal Ibrahim <noufal at nibrahim dot net.in> ---
That solves the issue although I find the relationship between the
optimisations and the warnings somewhat tenuous atleast from a user
perspective. Would it not be a good idea to have this warning even by default?