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To: Daniel Jacobowitz <drow@mvista.com>
Cc: gcc-patches@sources.redhat.com, echristo@redhat.com
Subject: Re: RFC: New approach to --with-cpu
References: <20020730215824.GA21681@nevyn.them.org>
From: Richard Sandiford <rsandifo@redhat.com>
Date: Wed, 31 Jul 2002 06:35:00 -0000
In-Reply-To: <20020730215824.GA21681@nevyn.them.org>
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Daniel Jacobowitz <drow@mvista.com> writes:
> +#ifdef TARGET_DEFAULT_OPTION_ARCH
> +  if (! option_present (*argcp, *argvp, "-march="))
> +    add_option (argcp, argvp, "-march=" XSTRING (TARGET_DEFAULT_OPTION_ARCH));
> +#endif

On mips, what should happen if you give -mips3 on the command line?
Should it override the default -march?  Seems like the default would
win as things stand.

I suppose you could have:

  if (!option_present (*argcp, *argvp, "-march=")
      && (!option_present (*argcp, *argvp, "-mips")
          || option_present (*argcp, *argvp, "-mips16")))
    add_option (argcp, argvp, "-march=" XSTRING (TARGET_DEFAULT_OPTION_ARCH));

(since -mips16 shouldn't change the default arch) but maybe
there needs to be some sort of target macro?

Richard