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Re: `long double' support for ix86 targets
Date: Fri, 3 Mar 2000 13:08:07 -0700
From: Kevin Buettner <firstname.lastname@example.org>
On Mar 3, 11:25am, Jim Kingdon wrote:
> > Kevin's changes to findvar.c:extract_floating() and store_floating()
> > together with some further analysis have convinced me that for all but
> > one ix86 targets 96-bit long doubles of type &floatformat_i387_ext are
> > the right thing.
> That analysis looks sound to me.
> Unless you get some feedback from others, I'd go with that patch.
Mark's patch looks good to me too. I am curious though to see how OSF/1
will be handled. (That was the one case that Mark had identified where
overrides will be needed. I think it'd be good to apply a patch for
the OSF/1 targets at the same time that he applies his other patch.)
Well, since sizeof (long double) == sizeof (double) on that platform,
the following could make sense:
#define TARGET_LONG_DOUBLE_FORMAT &floatformat_ieee_double_little
#define TARGET_LONG_DOUBLE_BITS 64
However, I think I'll leave the current status quo and just put
/* FIXME: bla bla. */
after Including "i386/tm-i386m3.h" in `config/i386/tm-i386mk.h'. Of
course this will be checked in at the same time as the other patch.