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Re: rs6000/sysv4.h: -mcall-i960-old: why?
- From: Jim Wilson <wilson at redhat dot com>
- To: Zack Weinberg <zack at codesourcery dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: 27 Sep 2002 20:53:52 -0400
- Subject: Re: rs6000/sysv4.h: -mcall-i960-old: why?
- References: <20020928000105.GF1115@codesourcery.com>
>Why is there an -m switch "-mcall-i960-old" defined in rs6000/sysv4.h?
>What does the i960 have to do with the RS6000 and/or PowerPC?
A large company decided to switch from the i960 to the powerpc, and in order
to make the change easier, they wanted an option in the powerpc port that
gave it the same structure layout rules as their i960 port. This was also
the motivation for gcc/testsuite/consistency.vlad, which conincidentally,
mentions the -mcall-i960-old option in the README file.
This option isn't very useful to the FSF, or probably anyone else, but
if taken out, it will likely be re-added to some people's private gcc trees.
Jim