Re: changing "configure" to default to "gcc -g -O2 -fwrapv ..."

[Robert Dewar]

Andrew Pinski wrote:

> > -fwrapv-in-all-cases-except-loop-bounds
>
>
> Again, please don't this the default for Fortran as integer
> overflow has been undefined since at least 1977 so I don't think
> it is a good idea for GCC in general anyways as evidence of Fortran.
>
> -- Pinski

Well the question is whether the optimization buys anything
in practice for other than the loop bound case, I am guessing
it does not, and if that is the case there is an argument
for uniformity.