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* [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception
@ 2022-07-04 19:39 gscfq@t-online.de
2022-07-04 20:14 ` [Bug tree-optimization/106189] " pinskia at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: gscfq@t-online.de @ 2022-07-04 19:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
Bug ID: 106189
Summary: [10/11/12/13 Regression] ICE: Floating point exception
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gscfq@t-online.de
Target Milestone: ---
Started with r9 at -O2+ and file c-c++-common/Warray-bounds-9.c :
$ gcc-13-20220703 -c Warray-bounds-9.c -O2 -w -Warray-bounds=2
-mfunction-return=keep
during GIMPLE pass: vrp
Warray-bounds-9.c: In function 'a_n_0':
Warray-bounds-9.c:24:12: internal compiler error: Floating point exception
24 | NOIPA void a_n_0 (int n)
| ^~~~~
0xc2cd3f crash_signal
../../gcc/toplev.cc:322
0x18092c4 array_bounds_checker::check_mem_ref(unsigned int, tree_node*, bool)
../../gcc/gimple-array-bounds.cc:537
0x180a779 array_bounds_checker::check_array_bounds(tree_node**, int*, void*)
../../gcc/gimple-array-bounds.cc:727
0xec2a22 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
../../gcc/tree.cc:11237
0x97fba8 walk_gimple_op(gimple*, tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
../../gcc/gimple-walk.cc:202
0x1808dd5 check_array_bounds_dom_walker::before_dom_children(basic_block_def*)
../../gcc/gimple-array-bounds.cc:790
0x17f7a14 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.cc:311
0x180a4da array_bounds_checker::check()
../../gcc/gimple-array-bounds.cc:804
0xeab6b6 execute_vrp
../../gcc/tree-vrp.cc:4234
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
@ 2022-07-04 20:14 ` pinskia at gcc dot gnu.org
2022-07-07 12:37 ` [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd marxin at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-07-04 20:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |tree-optimization
Target Milestone|--- |10.5
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
2022-07-04 20:14 ` [Bug tree-optimization/106189] " pinskia at gcc dot gnu.org
@ 2022-07-07 12:37 ` marxin at gcc dot gnu.org
2022-07-07 12:40 ` marxin at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-07-07 12:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[10/11/12/13 Regression] |[10/11/12/13 Regression]
|ICE: Floating point |ICE: Floating point
|exception |exception since
| |r9-1948-gd893b683f40884cd
Last reconfirmed| |2022-07-07
Ever confirmed|0 |1
CC| |marxin at gcc dot gnu.org,
| |msebor at gcc dot gnu.org
Status|UNCONFIRMED |NEW
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r9-1948-gd893b683f40884cd.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
2022-07-04 20:14 ` [Bug tree-optimization/106189] " pinskia at gcc dot gnu.org
2022-07-07 12:37 ` [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd marxin at gcc dot gnu.org
@ 2022-07-07 12:40 ` marxin at gcc dot gnu.org
2022-07-25 15:23 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-07-07 12:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:
$ cat warray-bounds.c
a_n_0_0_a[][0];
a_n_0_0() { T(((char *)a_n_0_0_a)[1]); }
$ gcc warray-bounds.c -c -O2 -Warray-bounds=2 -w
during GIMPLE pass: vrp
warray-bounds.c: In function ‘a_n_0_0’:
warray-bounds.c:2:1: internal compiler error: Floating point exception
2 | a_n_0_0() { T(((char *)a_n_0_0_a)[1]); }
| ^~~~~~~
0xf59efa crash_signal
/home/marxin/Programming/gcc/gcc/toplev.cc:322
0x7ffff78567bf ???
/usr/src/debug/glibc-2.35-5.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x1d1b484 array_bounds_checker::check_mem_ref(unsigned int, tree_node*, bool)
/home/marxin/Programming/gcc/gcc/gimple-array-bounds.cc:537
0x1d1baf9 array_bounds_checker::check_array_bounds(tree_node**, int*, void*)
/home/marxin/Programming/gcc/gcc/gimple-array-bounds.cc:727
0x12662cb walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
/home/marxin/Programming/gcc/gcc/tree.cc:11237
0xc4d120 walk_gimple_op(gimple*, tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
/home/marxin/Programming/gcc/gcc/gimple-walk.cc:202
0x1d19a5a check_array_bounds_dom_walker::before_dom_children(basic_block_def*)
/home/marxin/Programming/gcc/gcc/gimple-array-bounds.cc:790
0x1d02fe5 dom_walker::walk(basic_block_def*)
/home/marxin/Programming/gcc/gcc/domwalk.cc:311
0x1d19c9b array_bounds_checker::check()
/home/marxin/Programming/gcc/gcc/gimple-array-bounds.cc:804
0x123e421 execute_vrp
/home/marxin/Programming/gcc/gcc/tree-vrp.cc:4235
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] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
` (2 preceding siblings ...)
2022-07-07 12:40 ` marxin at gcc dot gnu.org
@ 2022-07-25 15:23 ` rguenth at gcc dot gnu.org
2022-07-26 6:37 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-07-25 15:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Priority|P3 |P2
Status|NEW |ASSIGNED
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Interestingly
const offset_int nelts = aref.sizrng[1] / eltsize;
is "happy" because of
if (divisor == 0)
overflow = true;
let's do that "trick" for the other case as well.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
` (3 preceding siblings ...)
2022-07-25 15:23 ` rguenth at gcc dot gnu.org
@ 2022-07-26 6:37 ` cvs-commit at gcc dot gnu.org
2022-07-27 9:24 ` [Bug tree-optimization/106189] [10/11/12 " cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-07-26 6:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:bb04f9f23ac0dee2c003118c85372ece50a52220
commit r13-1835-gbb04f9f23ac0dee2c003118c85372ece50a52220
Author: Richard Biener <rguenther@suse.de>
Date: Mon Jul 25 17:24:57 2022 +0200
tree-optimization/106189 - avoid division by zero exception
The diagnostic code can end up with zero sized array elements
with T[][0] and the wide-int code nicely avoids exceptions when
dividing by zero in one codepath but not in another. The following
fixes the exception by using wide-int in both paths.
PR tree-optimization/106189
* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref):
Divide using offset_ints.
* gcc.dg/pr106189.c: New testcase.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11/12 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
` (4 preceding siblings ...)
2022-07-26 6:37 ` cvs-commit at gcc dot gnu.org
@ 2022-07-27 9:24 ` cvs-commit at gcc dot gnu.org
2022-10-17 13:28 ` [Bug tree-optimization/106189] [10/11 " cvs-commit at gcc dot gnu.org
2023-07-07 10:02 ` [Bug tree-optimization/106189] [10 " rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-07-27 9:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:5b8458bc35b5df34c1b4b8735975f2686444f6c8
commit r12-8629-g5b8458bc35b5df34c1b4b8735975f2686444f6c8
Author: Richard Biener <rguenther@suse.de>
Date: Mon Jul 25 17:24:57 2022 +0200
tree-optimization/106189 - avoid division by zero exception
The diagnostic code can end up with zero sized array elements
with T[][0] and the wide-int code nicely avoids exceptions when
dividing by zero in one codepath but not in another. The following
fixes the exception by using wide-int in both paths.
PR tree-optimization/106189
* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref):
Divide using offset_ints.
* gcc.dg/pr106189.c: New testcase.
(cherry picked from commit bb04f9f23ac0dee2c003118c85372ece50a52220)
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10/11 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
` (5 preceding siblings ...)
2022-07-27 9:24 ` [Bug tree-optimization/106189] [10/11/12 " cvs-commit at gcc dot gnu.org
@ 2022-10-17 13:28 ` cvs-commit at gcc dot gnu.org
2023-07-07 10:02 ` [Bug tree-optimization/106189] [10 " rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-10-17 13:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:9124675d2771aaf573bfbbe237ab28030bf3115d
commit r11-10316-g9124675d2771aaf573bfbbe237ab28030bf3115d
Author: Richard Biener <rguenther@suse.de>
Date: Mon Jul 25 17:24:57 2022 +0200
tree-optimization/106189 - avoid division by zero exception
The diagnostic code can end up with zero sized array elements
with T[][0] and the wide-int code nicely avoids exceptions when
dividing by zero in one codepath but not in another. The following
fixes the exception by using wide-int in both paths.
PR tree-optimization/106189
* gimple-array-bounds.cc (array_bounds_checker::check_mem_ref):
Divide using offset_ints.
* gcc.dg/pr106189.c: New testcase.
(cherry picked from commit bb04f9f23ac0dee2c003118c85372ece50a52220)
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/106189] [10 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd
2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
` (6 preceding siblings ...)
2022-10-17 13:28 ` [Bug tree-optimization/106189] [10/11 " cvs-commit at gcc dot gnu.org
@ 2023-07-07 10:02 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-07-07 10:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106189
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
Known to fail| |10.5.0
Target Milestone|10.5 |11.4
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
fixed.
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2023-07-07 10:02 UTC | newest]
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2022-07-04 19:39 [Bug c/106189] New: [10/11/12/13 Regression] ICE: Floating point exception gscfq@t-online.de
2022-07-04 20:14 ` [Bug tree-optimization/106189] " pinskia at gcc dot gnu.org
2022-07-07 12:37 ` [Bug tree-optimization/106189] [10/11/12/13 Regression] ICE: Floating point exception since r9-1948-gd893b683f40884cd marxin at gcc dot gnu.org
2022-07-07 12:40 ` marxin at gcc dot gnu.org
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2022-07-26 6:37 ` cvs-commit at gcc dot gnu.org
2022-07-27 9:24 ` [Bug tree-optimization/106189] [10/11/12 " cvs-commit at gcc dot gnu.org
2022-10-17 13:28 ` [Bug tree-optimization/106189] [10/11 " cvs-commit at gcc dot gnu.org
2023-07-07 10:02 ` [Bug tree-optimization/106189] [10 " rguenth at gcc dot gnu.org
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