This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [LNO, mainline] Remember rs6000 builtins decls

From: Geert Bosch <bosch at gnat dot com>
To: Andrew Pinski <pinskia at physics dot uc dot edu>
Cc: Devang Patel <dpatel at apple dot com>,GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Sat, 5 Jun 2004 13:09:20 -0400
Subject: Re: [LNO, mainline] Remember rs6000 builtins decls
References: <582EB0FA-B692-11D8-B79B-000393A91CAA@apple.com> <5783F30C-B706-11D8-9AF2-000393A6D2F2@physics.uc.edu>

On Jun 5, 2004, at 11:38, Andrew Pinski wrote:

Why would the auto-vectorizer use the builtins directly?  I and many
others think that the auto-vectorizer should be more target generic
than that.


The vectorizer needs to be able to make accurate cost estimates for
a specific target to decide what loop optimizations will be beneficial,
so it needs to know exactly what operations are available for each
vector type. The vectorizer algorithms can still be target-independent.

-Geert

Follow-Ups:
- Re: [LNO, mainline] Remember rs6000 builtins decls
  - From: Andrew Pinski

References:
- [LNO, mainline] Remember rs6000 builtins decls
  - From: Devang Patel
- Re: [LNO, mainline] Remember rs6000 builtins decls
  - From: Andrew Pinski

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]