From: Jeffrey A Law <law@cygnus.com>
To: Joern Rennecke <amylaar@cygnus.co.uk>
Cc: crux@pool.informatik.rwth-aachen.de (Bernd Schmidt),
meissner@cygnus.com, toon@moene.indiv.nluug.nl, egcs@cygnus.com
Subject: Re: Reload patch to improve 386 code
Date: Mon, 07 Sep 1998 18:26:00 -0000 [thread overview]
Message-ID: <523.905217170@hurl.cygnus.com> (raw)
In-Reply-To: <199809080059.BAA01948@phal.cygnus.co.uk>
In message < 199809080059.BAA01948@phal.cygnus.co.uk >you write:
> > > Then again inheritance happens just before we start emitting the
> > > reload insns themselves, so maybe it doesn't conflict with your code.
> >
> > It really shouldn't. Inheritance only looks at the insns that reload is
> > already done with, and the one currently being processed. For those
> > which reload has completed, the register life information calculated by
> > my patch is never referenced again, so the inheritance code can do
> > whatever it wants to them.
>
> You'll have to add some code to tell the inheritance code when a reload
> register becomes unavailable where it becomes used by a pseudo.
Yup. But that shouldn't be too difficult. In forget_old_reloads_1
we look at reg_renumber for the pseudo and invalidate things as needed.
jeff
next prev parent reply other threads:[~1998-09-07 18:26 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.SOL.3.90.970819095143.291G-100000@starsky.informatik.rwth-aachen.de>
1998-09-04 5:03 ` Jeffrey A Law
1998-09-04 5:05 ` Bernd Schmidt
1998-09-04 22:36 ` Joern Rennecke
1998-09-05 4:45 ` Jeffrey A Law
1998-09-05 15:49 ` Joern Rennecke
1998-09-05 15:44 ` Jeffrey A Law
1998-09-06 1:09 ` Mark Mitchell
1998-09-06 1:09 ` Jeffrey A Law
1998-09-07 9:48 ` Bernd Schmidt
1998-09-07 19:09 ` Joern Rennecke
1998-09-07 18:26 ` Jeffrey A Law [this message]
1998-09-07 19:09 ` Jeffrey A Law
1998-09-04 21:38 ` Joern Rennecke
1998-09-04 21:38 ` Jeffrey A Law
1997-08-21 16:51 Joern Rennecke
-- strict thread matches above, loose matches on Subject: below --
1997-08-21 16:51 Problems on PowerPC David Edelsohn
1997-08-21 17:37 ` Reload patch to improve 386 code Bernd Schmidt
1997-08-21 15:20 egcs repository Joel Sherrill
1997-08-21 15:47 ` Reload patch to improve 386 code Bernd Schmidt
1997-08-19 19:00 Joern Rennecke
1997-08-19 8:50 Jakub Jelinek
1997-08-19 7:36 egcs: A new compiler project to merge the existing GCC forks (fwd) Robert Wilhelm
1997-08-19 8:08 ` Reload patch to improve 386 code Jeffrey A Law
1997-08-19 8:08 ` Bernd Schmidt
1997-08-19 8:08 ` Bernd Schmidt
1997-08-18 20:47 Mike Meissner
1997-08-18 20:46 Joern Rennecke
1997-08-18 18:55 David S. Miller
1997-08-18 19:09 ` Jeffrey A Law
1997-08-18 15:36 Toon Moene
1997-08-18 15:11 meissner
1997-08-18 14:53 Toon Moene
1997-08-18 14:53 meissner
1997-08-18 14:53 Monday morning Philippe Laliberte
1997-08-18 14:54 ` Reload patch to improve 386 code Jeffrey A Law
1997-08-18 8:13 Test result for 970814 on native sparc-sun-solaris2.5.1 Klaus Kaempf
1997-08-18 8:22 ` Reload patch to improve 386 code Bernd Schmidt
1997-08-18 10:11 ` Bernd Schmidt
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