public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "moonz at kaist dot ac dot kr" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/27616] New: Internal error with -O3 Date: Mon, 15 May 2006 15:46:00 -0000 [thread overview] Message-ID: <bug-27616-10599@http.gcc.gnu.org/bugzilla/> (raw) ===== gcc41bug.c ===== #include <stddef.h> typedef struct chunk_s chunk_t; struct chunk_s { unsigned int size; int offset_next; }; #define GET_ADDRESS(baseptr, offset) \ ((chunk_t *)((char *)(baseptr) + (offset))) void gcc_bug_test(chunk_t *first) { chunk_t *cur; while (1) { cur = GET_ADDRESS(first, first->offset_next); if (GET_ADDRESS(first, cur->offset_next) == first) first->offset_next = 0; if (cur->size == 0) break; } } ===== end of gcc41bug.c ===== command line: $ i686-pc-linux-gnu-gcc-4.1.0 -c -O1 -o gcc41bug.o gcc41bug.c i686-pc-linux-gnu-gcc-4.1.0: Internal error: Segmentation fault (program cc1) 1. Works fine without -O1. 2. Code might look meaningless, but it's extracted part from a real application code $ gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /var/tmp/portage/gcc-4.1.0/work/gcc-4.1.0/configure --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/4.1.0 --includedir=/usr/lib/gcc/i686-pc-linux-gnu/4.1.0/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/4.1.0 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/4.1.0/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/4.1.0/info --with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/4.1.0/include/g++-v4 --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --disable-altivec --enable-nls --without-included-gettext --with-system-zlib --disable-checking --disable-werror --disable-libunwind-exceptions --disable-multilib --disable-libmudflap --disable-libssp --disable-libgcj --enable-languages=c,c++,fortran --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu Thread model: posix gcc version 4.1.0 (Gentoo 4.1.0) -- Summary: Internal error with -O3 Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: moonz at kaist dot ac dot kr 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=27616
next reply other threads:[~2006-05-15 15:46 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2006-05-15 15:46 moonz at kaist dot ac dot kr [this message] 2006-05-15 15:51 ` [Bug rtl-optimization/27616] Internal error with -O1 (CSE) pinskia at gcc dot gnu dot org 2006-05-15 15:53 ` [Bug rtl-optimization/27616] [4.1/4.2 Regression] " pinskia at gcc dot gnu dot org 2006-05-15 15:59 ` pinskia at gcc dot gnu dot org 2006-05-18 21:47 ` kazu at gcc dot gnu dot org 2006-05-19 19:37 ` kazu at gcc dot gnu dot org 2006-05-25 2:42 ` mmitchel at gcc dot gnu dot org 2006-06-04 9:34 ` steven at gcc dot gnu dot org 2006-06-04 19:10 ` mmitchel at gcc dot gnu dot org 2006-06-04 20:46 ` kazu at gcc dot gnu dot org 2006-07-07 13:36 ` pinskia at gcc dot gnu dot org 2006-07-14 0:20 ` janis at gcc dot gnu dot org 2006-07-14 17:02 ` steven at gcc dot gnu dot org 2006-08-06 20:15 ` ebotcazou at gcc dot gnu dot org 2006-08-08 11:12 ` ebotcazou at gcc dot gnu dot org 2006-08-08 18:33 ` pinskia at gcc dot gnu dot org 2006-08-08 18:52 ` ebotcazou at gcc dot gnu dot org 2006-09-04 19:33 ` [Bug rtl-optimization/27616] [4.1/4.2 Regression] Infinite loop at -O1 and above in RTL CSE ebotcazou at gcc dot gnu dot org 2006-09-04 19:35 ` ebotcazou at gcc dot gnu dot org 2006-09-04 19:38 ` ebotcazou 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=bug-27616-10599@http.gcc.gnu.org/bugzilla/ \ --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: linkBe 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).