Re: RFC: New approach to --with-cpu

["John David Anglin" <dave@hiauly1.hia.nrc.ca>]

> On Thu, Aug 01, 2002 at 11:15:10AM -0400, John David Anglin wrote:
> > > +	hppa*-*-* | parisc*-*-*)
> > > +		if test x$gas = xyes
> > > +		then
> > > +			target_cpu_default2="MASK_GAS|MASK_JUMP_IN_DELAY"
> > > +		fi
> > > +		case $machine in
> > > +			hppa1* | parisc1*)
> > > +				with_cpu=7100LC
> >                                 ^^^^^^^^
> > 
> > I believe that this should be "with_schedule".  I was also wondering
> > if a comment should be added to indicate that the default scheduling
> > model is "8000".
> 
> And you're completely correct on both counts.  I've added that to my
> working copy.

I enclose below an update to above code.  I have attempted to
bullet proof it so that it handles error conditions gracefully
and only overrides the PA8000 default based on the target
cpu when the user doesn't specify --with-schedule.

I have run through partial builds checking most of the option
permutations and the patch seems to be working well.  I like
the ease with which the scheduling model can now be specified.

The only additional wish is for an easy way to print the target
defaults.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

--- config.gcc.orig	2002-08-01 09:36:20.000000000 -0700
+++ config.gcc	2002-08-01 11:19:24.000000000 -0700
@@ -2908,9 +2908,21 @@
 		then
 			target_cpu_default2="MASK_GAS|MASK_JUMP_IN_DELAY"
 		fi
-		case $machine in
-			hppa1* | parisc1*)
-				with_cpu=7100LC
+		case ".$with_schedule" in
+			.700 | .7100 | .7100LC | .7200 | .7300 | .8000)
+				;;
+			.)
+				case $machine in
+					hppa1* | parisc1*)
+						# Override default PA8000
+						# scheduling model.
+						with_schedule=7100LC
+						;;
+				esac
+				;;
+			*)
+				echo "Unknown cpu used with --with-schedule=$with_schedule" 1>&2
+				exit 1
 				;;
 		esac
 		;;