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Re: MIPS gas relaxation still doesn't work
- From: Alexandre Oliva <aoliva at redhat dot com>
- To: "Maciej W. Rozycki" <macro at ds2 dot pg dot gda dot pl>
- Cc: "H. J. Lu" <hjl at lucon dot org>, "David S. Miller" <davem at redhat dot com>, rsandifo at redhat dot com, linux-mips at linux-mips dot org, gcc at gcc dot gnu dot org, binutils at sources dot redhat dot com
- Date: 15 Oct 2002 21:16:40 -0300
- Subject: Re: MIPS gas relaxation still doesn't work
- Organization: GCC Team, Red Hat
- References: <Pine.GSO.3.96.1021015203905.20626A-100000@delta.ds2.pg.gda.pl>
On Oct 15, 2002, "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> wrote:
> I think at least for the former case gas should be let relax jumps and
> branches freely, so the ".set nomacro" statement should be moved to affect
> instructions in delay slots only, as you suggested.
Except that, with the current implementation of branch relaxation,
when you enable it, each branch will mark the end of a frag, so the
assembler will be effectively unable to fill delay slots anyway, since
it won't bring instructions from the previous frag to the beginning of
the new frag.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist Professional serial bug killer