public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c/110769] New: ICE in adjust_loop_info_after_peeling, at tree-ssa-loop-ivcanon.cc:1023
@ 2023-07-21 15:04 shaohua.li at inf dot ethz.ch
  2023-07-21 20:36 ` [Bug tree-optimization/110769] " pinskia at gcc dot gnu.org
                   ` (8 more replies)
  0 siblings, 9 replies; 10+ messages in thread
From: shaohua.li at inf dot ethz.ch @ 2023-07-21 15:04 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110769

            Bug ID: 110769
           Summary: ICE in adjust_loop_info_after_peeling, at
                    tree-ssa-loop-ivcanon.cc:1023
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: shaohua.li at inf dot ethz.ch
  Target Milestone: ---

Looks like a recent regression.

Compiler explorer: https://godbolt.org/z/eMh54dYKz

$ cat a.c
int a;
int b(unsigned d) {
  int c = 0;
  for (; d; c++)
    d >>= 1;
  return c;
}
int main() {
  a = 0;
  for (; b(31) + a > 21; a = a + (unsigned)8)
    ;
  for (;;)
    ;
}
$
$ gcc-tk -O3 a.c
during GIMPLE pass: ch_vect
crash_0_reduced.c: In function ‘main’:
crash_0_reduced.c:8:5: internal compiler error: in
adjust_loop_info_after_peeling, at tree-ssa-loop-ivcanon.cc:1023
    8 | int main() {
      |     ^~~~
0x216183e internal_error(char const*, ...)
        ???:0
0x9d1376 fancy_abort(char const*, int, char const*)
        ???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$
$ gcc-tk -v
Using built-in specs.
COLLECT_GCC=gcc-tk
COLLECT_LTO_WRAPPER=/zdata/shaoli/compilers/ccbuilder-compilers/gcc-8cbdb2e4d64461d8a19e033bd33b585187059d8a/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --disable-multilib --disable-bootstrap
--enable-languages=c,c++
--prefix=/zdata/shaoli/compilers/ccbuilder-compilers/gcc-8cbdb2e4d64461d8a19e033bd33b585187059d8a
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20230721 (experimental) (GCC) 
$

^ permalink raw reply	[flat|nested] 10+ messages in thread
end of thread, other threads:[~2024-01-11 13:53 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-07-21 15:04 [Bug c/110769] New: ICE in adjust_loop_info_after_peeling, at tree-ssa-loop-ivcanon.cc:1023 shaohua.li at inf dot ethz.ch
2023-07-21 20:36 ` [Bug tree-optimization/110769] " pinskia at gcc dot gnu.org
2023-07-23  2:39 ` zhendong.su at inf dot ethz.ch
2023-07-24  6:33 ` [Bug tree-optimization/110769] [14 Regression] " rguenth at gcc dot gnu.org
2023-07-30 15:01 ` shaohua.li at inf dot ethz.ch
2023-10-17 12:15 ` rguenth at gcc dot gnu.org
2023-11-03 12:27 ` [Bug tree-optimization/110769] [14 Regression] ICE in adjust_loop_info_after_peeling, at tree-ssa-loop-ivcanon.cc:1023 since r14-2674-gd0de3bf9175 shaohua.li at inf dot ethz.ch
2023-11-03 18:02 ` [Bug tree-optimization/110769] [14 Regression] ICE in adjust_loop_info_after_peeling, at tree-ssa-loop-ivcanon.cc:1023 since r14-2675-gef28aadad6e pinskia at gcc dot gnu.org
2024-01-11 13:53 ` rguenth at gcc dot gnu.org
2024-01-11 13:53 ` rguenth at gcc dot gnu.org

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).