From: Roger Sayle <roger@eyesopen.com>
To: <gcc@gcc.gnu.org>, Michel Lespinasse <walken@zoy.org>,
Richard Henderson <rth@redhat.com>, Jan Hubicka <jh@suse.cz>
Subject: Re: GCC performance regression - its memset!
Date: Mon, 22 Apr 2002 23:07:00 -0000 [thread overview]
Message-ID: <Pine.LNX.4.33.0204222307450.2893-100000@www.eyesopen.com> (raw)
I think its one of Jan's changes. I can reproduce the problem, and
fix it using "-minline-all-stringops" which forces 3.1 to inline the
memset on i686. I was concerned that it was a middle-end bug with
builtins, but it now appears to be an ia32 back-end issue.
Michel, does "-minline-all-stringops" fix the problem for you?
Roger
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next reply other threads:[~2002-04-23 5:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-22 23:07 Roger Sayle [this message]
2002-04-22 23:30 ` Michel LESPINASSE
2002-04-23 0:45 ` Michel LESPINASSE
2002-04-23 2:53 ` Jan Hubicka
2002-04-23 3:28 ` Richard Henderson
2002-05-20 8:06 ` [3.1.1] " Jan Hubicka
2002-05-20 9:36 ` Glen Nakamura
2002-05-20 10:08 ` Richard Henderson
2002-05-20 10:38 ` Jakub Jelinek
2002-05-20 11:28 ` Roger Sayle
2002-05-20 12:57 ` Glen Nakamura
2002-05-20 16:58 ` Roger Sayle
2002-05-21 8:23 ` Jack Lloyd
2002-05-21 9:55 ` Glen Nakamura
2002-05-21 11:13 ` Jack Lloyd
2002-05-21 8:04 ` Jan Hubicka
2002-05-20 12:07 ` Mark Mitchell
-- strict thread matches above, loose matches on Subject: below --
2002-04-20 18:13 GCC performance regression - up to 20% ? Michel LESPINASSE
2002-04-22 14:33 ` GCC performance regression - its memset ! Michel LESPINASSE
2002-04-22 14:58 ` Jason R Thorpe
2002-04-22 15:27 ` Michel LESPINASSE
2002-04-22 16:59 ` Segher Boessenkool
2002-04-22 17:10 ` Richard Henderson
2002-04-22 17:13 ` Michel LESPINASSE
2002-04-22 17:39 ` Richard Henderson
2002-04-22 17:49 ` Michel LESPINASSE
2002-04-23 5:03 ` Falk Hueffner
2002-04-23 6:53 ` Andreas Schwab
2002-04-23 2:39 ` Jan Hubicka
2002-04-23 13:36 ` Michel LESPINASSE
2002-04-24 0:30 ` Jan Hubicka
2002-04-24 0:50 ` Jakub Jelinek
2002-04-24 1:00 ` Jan Hubicka
2002-04-24 3:32 ` Jan Hubicka
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