Why don't gcc implement large model for x86-64

Ian Lance Taylor iant@google.com
Tue Oct 10 21:31:00 GMT 2006


Ian Lance Taylor <iant@google.com> writes:

> "hendric" <hendric.lee@gmail.com> writes:
> 
> > As far as I know,current x86-64 gcc forces programmes linked in
> > lower 2GB even though specified -mcmode=medium mode. But don't you
> > think large mode too important? I wondered why large mode's out of
> > implementation.
> 
> Because nobody has implemented it.

Andrew Pinski pointed out that in fact Jan Hubicka has implemented
large model support already, and it should go into gcc 4.3:
    http://gcc.gnu.org/wiki/large-model

Projects planned for gcc 4.3 are listed here:
    http://gcc.gnu.org/wiki/GCC_4.3_Release_Planning

Ian



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