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Re: gfortran and -mlong-double-128
On 2/16/06, Paul Brook <paul@codesourcery.com> wrote:
> On Thursday 16 February 2006 11:09, François-Xavier Coudert wrote:
> > Hi all,
> >
> > I'm sending this mail because I'm a bit confused about the
> > -mlong-double-128 option on (for example) ppc64-linux, and its impact
> > on gfortran/libgfortran.
> Having gfortran magically know about certain ABI breaking options, and doing
> funny things on certain targets seems a very bad precedent to me.
The point is that from a gfortran perspective -mlong-double-128 doesn't change
the ABI, it merely adds to it (which is sort of a change, but less invasive than
changing long double from 8bytes to 16bytes). So we can easily cope with the
user request for -mlong-double-128 by always providing the kind=16 intrinsics.
Richard.