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From: "hubicka at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/30650] [4.3 Regression] ICE with -fprofile-use
Date: Wed, 14 Feb 2007 01:25:00 -0000 [thread overview]
Message-ID: <20070214012450.18831.qmail@sourceware.org> (raw)
In-Reply-To: <bug-30650-13404@http.gcc.gnu.org/bugzilla/>
------- Comment #9 from hubicka at gcc dot gnu dot org 2007-02-14 01:24 -------
Hi,
the reason is -msse3 that is supposed to be at both invocations. -msse3
enables the SSE builtins that do change declarations UIDs that in turn changes
function names:
< ;; Function ddx (ddx.1401)
---
> ;; Function ddx (ddx.1390)
so profiles can't match. While it is possible to ignore the SSA names, I don't
think there is actual need to mess with this - the use of different swtiches
that do affect input language clearly can't be much accepted in between train
and compilation run
(I am hoping that optimization switches like -funroll-loops will run, but for
language features, like SSE is we will get different divergences anyway)
The other problem was fixed, so I am closing the PR.
Honza
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30650
prev parent reply other threads:[~2007-02-14 1:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-31 11:13 [Bug gcov-profile/30650] New: [Regression 4.3] " burnus at gcc dot gnu dot org
2007-01-31 12:48 ` [Bug gcov-profile/30650] " rguenth at gcc dot gnu dot org
2007-02-03 17:32 ` [Bug gcov-profile/30650] [4.3 Regression] " jsm28 at gcc dot gnu dot org
2007-02-03 21:45 ` stefaan dot deroeck at gmail dot com
2007-02-03 21:49 ` hubicka at gcc dot gnu dot org
2007-02-03 21:49 ` hubicka at gcc dot gnu dot org
2007-02-03 21:51 ` rguenth at gcc dot gnu dot org
2007-02-03 21:55 ` hubicka at ucw dot cz
2007-02-03 23:36 ` hubicka at gcc dot gnu dot org
2007-02-05 14:45 ` burnus at gcc dot gnu dot org
2007-02-14 1:25 ` hubicka at gcc dot gnu dot org [this message]
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