From: Xavier Leroy <Xavier.Leroy@inria.fr>
To: Jacques Carette <carette@mcmaster.ca>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] compiler bug?
Date: Thu, 18 May 2006 19:46:22 +0200 [thread overview]
Message-ID: <446CB2EE.1080102@inria.fr> (raw)
In-Reply-To: <446CB021.6000009@mcmaster.ca>
>> Well, there is the paper by George and Appel where they use an ILP
>> solver (integer linear programming) to produce optimal spills, but
>> that's kind of expensive...
>
> It is my impression that users of compilers are "ready" for the
> following situation:
> 1) an optimizing compiler (like ocamlopt!) that produces good code
> efficiently
> 2) a super-optimizing compiler that produces fantastic code, at whatever
> cost.
Clearly, you're not the guy who would have to support both compilers :-)
More seriously, I agree that optional "super-optimization" passes
could be useful in some cases.
Actually, George and Appel found that compilation times with their
approach were almost reasonable (e.g. a few minutes instead of a few
seconds for a standard compiler), but they had to use a commercial ILP
solver. If only there were *really good* ILP and SAT solvers under free
licenses...
- Xavier Leroy
next prev parent reply other threads:[~2006-05-18 17:46 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-17 23:14 Dan Koppel
2006-05-17 23:33 ` [Caml-list] " John Carr
2006-05-18 17:15 ` Xavier Leroy
2006-05-18 17:34 ` Jacques Carette
2006-05-18 17:46 ` Xavier Leroy [this message]
2006-05-18 19:31 ` Jacques Carette
2006-05-18 20:07 ` David Brown
2006-05-18 20:15 ` Jacques Carette
2006-05-18 20:20 ` Alain Frisch
2006-05-18 18:19 ` skaller
2006-05-18 18:53 ` Jacques Carette
2006-05-19 1:47 ` skaller
2006-05-19 2:17 ` Brian Hurt
2006-05-19 3:11 ` skaller
2006-05-19 16:48 ` Jacques Carette
2006-05-19 19:10 ` skaller
2012-08-06 10:04 [Caml-list] Compiler bug? Dmitry Bely
2012-08-06 10:11 ` Alain Frisch
2012-08-06 10:20 ` Dmitry Bely
2012-08-06 10:34 ` Alain Frisch
2012-08-06 11:03 ` Dmitry Bely
2012-08-06 11:32 ` Alain Frisch
2012-08-06 12:16 ` Dmitry Bely
2012-08-07 1:35 ` Cedric Cellier
2012-08-08 16:03 ` Dmitry Bely
2012-08-08 18:03 ` Alain Frisch
2012-08-08 18:22 ` Jesper Louis Andersen
2012-08-08 18:40 ` Dmitry Bely
2012-08-08 19:29 ` Fabrice Le Fessant
2012-08-08 23:34 ` Anil Madhavapeddy
2012-08-09 0:53 ` Francois Berenger
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