public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "bommar33 at msu dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/17036] New: ICE: (A >> N) & 1 ? (1 << N) : 0 where A of type unsigned int
Date: Sun, 15 Aug 2004 16:55:00 -0000	[thread overview]
Message-ID: <20040815165530.17036.bommar33@msu.edu> (raw)

The error is easily reproducible outside of the conditions of the kernel code,
and, as I'm sure you'd appreciate, I have written an example that successfully
duplicates the exact ICE as below.  Attached is the significantly smaller
preprocessed example, compressed at 3k, in lieu of the 46k compressed kernel
driver :)  

System: i686-pc-linux-gnu (Fedora 2 release, kernel 2.6.7-1.494.2.2, athlon-xp
1800+)

GCC Version: 3.5.0 20040801 (experimental)

GCC ./configure Options: --enable-threads --with-cpu=athlon-xp
--with-arch=athlon-xp --enable-languages=c,c++

Command: 
[root@epithumadze linux-2.6.8]# make modules V=1
...
make -f scripts/Makefile.build obj=sound/synth/emux

gcc -Wp,-MD,sound/synth/emux/.emux_oss.o.d -nostdinc -iwithprefix include
-D__KERNEL__ -Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -pipe -msoft-float -mpreferred-stack-boundary=2
-fno-unit-at-a-time -march=athlon -mregparm=3 -Iinclude/asm-i386/mach-default
-O2 -fomit-frame-pointer -Wdeclaration-after-statement   -DMODULE
-DKBUILD_BASENAME=emux_oss -DKBUILD_MODNAME=snd_emux_synth -c -o
sound/synth/emux/emux_oss.o sound/synth/emux/emux_oss.c

Compiler Output:
sound/synth/emux/emux_oss.c: In function `emuspec_control':
sound/synth/emux/emux_oss.c:400: internal compiler error: tree check: expected
integer_cst, have var_decl in fold, at fold-const.c:8855

-- 
           Summary: ICE: (A >> N) & 1 ? (1 << N) : 0 where A of type
                    unsigned int
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bommar33 at msu dot edu
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17036


             reply	other threads:[~2004-08-15 16:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-15 16:55 bommar33 at msu dot edu [this message]
2004-08-15 16:57 ` [Bug c/17036] " bommar33 at msu dot edu
2004-08-15 17:05 ` [Bug middle-end/17036] [3.5 Regression] " pinskia at gcc dot gnu dot org
2004-08-15 18:05   ` Graham Stott
2004-08-15 18:05 ` graham dot stott at btinternet dot com
2004-08-15 18:57 ` bommar33 at msu dot edu
2004-08-16  7:19 ` paolo dot bonzini at polimi dot it
2004-08-17  7:40 ` cvs-commit at gcc dot gnu dot org
2004-08-17  8:19 ` pinskia at gcc dot gnu dot org

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20040815165530.17036.bommar33@msu.edu \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).