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* [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647
@ 2023-09-12 16:20 shaohua.li at inf dot ethz.ch
  2023-09-12 16:23 ` [Bug tree-optimization/111389] [14 Regression] " pinskia at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: shaohua.li at inf dot ethz.ch @ 2023-09-12 16:20 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111389

            Bug ID: 111389
           Summary: ICE in check_loop_closed_ssa_def, at
                    tree-ssa-loop-manip.cc:647
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: shaohua.li at inf dot ethz.ch
                CC: hubicka at gcc dot gnu.org
  Target Milestone: ---

gcc at -O2 crashes on the following testcase.

Bisected to r14-301-gf2d6beb7a4d

Compiler explorer: https://godbolt.org/z/o98qrd5nr

$cat a.c
int *a;
char b;
int d;
int e(int f) {
  int c = 0;
  for (; f > 1; c++)
    f >>= 1;
  return c;
}
void g() {
  for (;;) {
    for (; d; d++)
      ;
    b = 0;
    for (; e(92) - 6 + b; b = b + 8)
      *a = 0;
  }
}
int main() {}
$ gcc -O0 a.c && ./a.out
$ gcc -O2 a.c
during GIMPLE pass: ch_vect
a.c: In function ‘g’:
a.c:10:6: internal compiler error: in check_loop_closed_ssa_def, at
tree-ssa-loop-manip.cc:645
   10 | void g() {
      |      ^
0x7f8ffe5f1082 __libc_start_main
        ../csu/libc-start.c:308
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
$

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/111389] [14 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647
  2023-09-12 16:20 [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647 shaohua.li at inf dot ethz.ch
@ 2023-09-12 16:23 ` pinskia at gcc dot gnu.org
  2023-09-13  6:59 ` rguenth at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-09-12 16:23 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111389

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0
            Summary|ICE in                      |[14 Regression] ICE in
                   |check_loop_closed_ssa_def,  |check_loop_closed_ssa_def,
                   |at                          |at
                   |tree-ssa-loop-manip.cc:647  |tree-ssa-loop-manip.cc:647

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/111389] [14 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647
  2023-09-12 16:20 [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647 shaohua.li at inf dot ethz.ch
  2023-09-12 16:23 ` [Bug tree-optimization/111389] [14 Regression] " pinskia at gcc dot gnu.org
@ 2023-09-13  6:59 ` rguenth at gcc dot gnu.org
  2023-10-03 22:24 ` pinskia at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-09-13  6:59 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111389

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-09-13
           Priority|P3                          |P1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/111389] [14 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647
  2023-09-12 16:20 [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647 shaohua.li at inf dot ethz.ch
  2023-09-12 16:23 ` [Bug tree-optimization/111389] [14 Regression] " pinskia at gcc dot gnu.org
  2023-09-13  6:59 ` rguenth at gcc dot gnu.org
@ 2023-10-03 22:24 ` pinskia at gcc dot gnu.org
  2023-11-05 21:55 ` pinskia at gcc dot gnu.org
  2023-12-05 13:16 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-03 22:24 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111389

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |19373742 at buaa dot edu.cn

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 111678 has been marked as a duplicate of this bug. ***

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/111389] [14 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647
  2023-09-12 16:20 [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647 shaohua.li at inf dot ethz.ch
                   ` (2 preceding siblings ...)
  2023-10-03 22:24 ` pinskia at gcc dot gnu.org
@ 2023-11-05 21:55 ` pinskia at gcc dot gnu.org
  2023-12-05 13:16 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-05 21:55 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111389

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 109689.

*** This bug has been marked as a duplicate of bug 109689 ***

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug tree-optimization/111389] [14 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647
  2023-09-12 16:20 [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647 shaohua.li at inf dot ethz.ch
                   ` (3 preceding siblings ...)
  2023-11-05 21:55 ` pinskia at gcc dot gnu.org
@ 2023-12-05 13:16 ` rguenth at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-12-05 13:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111389
Bug 111389 depends on bug 109689, which changed state.

Bug 109689 Summary: [14 Regression] ICE at -O1 with "-ftree-vectorize": in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:645 since r14-301-gf2d6beb7a4ddf1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109689

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-12-05 13:16 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2023-09-12 16:20 [Bug tree-optimization/111389] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:647 shaohua.li at inf dot ethz.ch
2023-09-12 16:23 ` [Bug tree-optimization/111389] [14 Regression] " pinskia at gcc dot gnu.org
2023-09-13  6:59 ` rguenth at gcc dot gnu.org
2023-10-03 22:24 ` pinskia at gcc dot gnu.org
2023-11-05 21:55 ` pinskia at gcc dot gnu.org
2023-12-05 13:16 ` rguenth at gcc dot gnu.org

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