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* [Bug c/112320] New: crash from insert_debug_temp_for_var_def
@ 2023-10-31 17:31 dcb314 at hotmail dot com
2023-10-31 17:35 ` [Bug tree-optimization/112320] [14 Regression] " pinskia at gcc dot gnu.org
` (14 more replies)
0 siblings, 15 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2023-10-31 17:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Bug ID: 112320
Summary: crash from insert_debug_temp_for_var_def
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
This C code:
unsigned void0_effective_addr2;
void0_i, void0_m, void0_p2;
void0() {
void0_m = 800 - (void0_effective_addr2 & 5);
int b1;
void0_i = 0;
for (; void0_i < void0_m; void0_i++)
b1++;
void0_p2 = b1++;
}
when compiled by recent gcc trunk, does this:
$ ~/gcc/results/bin/gcc -c -w -g -O1 bug972.c
during GIMPLE pass: dse
bug972.c: In function ‘void0’:
bug972.c:3:1: internal compiler error: Segmentation fault
3 | void0() {
| ^~~~~
0xebbce9 crash_signal(int)
../../trunk.year/gcc/toplev.cc:315
0xaa2308 gsi_for_stmt(gimple*)
../../trunk.year/gcc/gimple-iterator.cc:0
0x11364ea insert_debug_temp_for_var_def(gimple_stmt_iterator*, tree_node*)
../../trunk.year/gcc/tree-ssa.cc:471
The bug first seems to occur sometime between g:8c40b72036c967fb
and g:9119b008b4195e06, which is 35 commits.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
@ 2023-10-31 17:35 ` pinskia at gcc dot gnu.org
2023-10-31 18:37 ` dcb314 at hotmail dot com
` (13 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-31 17:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
Summary|crash from |[14 Regression] crash from
|insert_debug_temp_for_var_d |insert_debug_temp_for_var_d
|ef |ef
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
2023-10-31 17:35 ` [Bug tree-optimization/112320] [14 Regression] " pinskia at gcc dot gnu.org
@ 2023-10-31 18:37 ` dcb314 at hotmail dot com
2023-10-31 18:47 ` dcb314 at hotmail dot com
` (12 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2023-10-31 18:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenther at suse dot de
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
I have a reduction running. Current range is g:711d703d07c8e924
to g:e3da1d7bb288c8c8.
Reviewing those 4 revisions, I suspect Richard's commit
g:e3da1d7bb288c8c864f0284bc4bc5877b466a2f7
Adding Richard for their opinion.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
2023-10-31 17:35 ` [Bug tree-optimization/112320] [14 Regression] " pinskia at gcc dot gnu.org
2023-10-31 18:37 ` dcb314 at hotmail dot com
@ 2023-10-31 18:47 ` dcb314 at hotmail dot com
2023-10-31 19:46 ` [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8 pinskia at gcc dot gnu.org
` (11 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2023-10-31 18:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
As expected:
$ git bisect good 1cf5dc05c678232b
e3da1d7bb288c8c864f0284bc4bc5877b466a2f7 is the first bad commit
commit e3da1d7bb288c8c864f0284bc4bc5877b466a2f7
Author: Richard Biener <rguenther@suse.de>
Date: Tue Oct 31 10:13:13 2023 +0100
tree-optimization/112305 - SCEV cprop and conditional undefined overflow
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (2 preceding siblings ...)
2023-10-31 18:47 ` dcb314 at hotmail dot com
@ 2023-10-31 19:46 ` pinskia at gcc dot gnu.org
2023-10-31 22:21 ` hp at gcc dot gnu.org
` (10 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-31 19:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |slyfox at gcc dot gnu.org
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112321 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (3 preceding siblings ...)
2023-10-31 19:46 ` [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8 pinskia at gcc dot gnu.org
@ 2023-10-31 22:21 ` hp at gcc dot gnu.org
2023-11-01 0:39 ` law at gcc dot gnu.org
` (9 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: hp at gcc dot gnu.org @ 2023-10-31 22:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |build
CC| |hp at gcc dot gnu.org
Target| |cris-elf
--- Comment #4 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
What target?
Anyway, cris-elf too, where build of newlib fails. (Same revision pin-pointed,
and the apparently-minimal posted test-case exposes the bug there too. It
could theoretically be a different bug from the same commit, but I think
horses.)
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (4 preceding siblings ...)
2023-10-31 22:21 ` hp at gcc dot gnu.org
@ 2023-11-01 0:39 ` law at gcc dot gnu.org
2023-11-01 0:40 ` law at gcc dot gnu.org
` (8 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: law at gcc dot gnu.org @ 2023-11-01 0:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
CC| |law at gcc dot gnu.org
Last reconfirmed| |2023-11-01
Ever confirmed|0 |1
--- Comment #5 from Jeffrey A. Law <law at gcc dot gnu.org> ---
I've bisected a failure on fr30-elf to the same commit. The failure mode is
different, but given it's the same commit, I'm attaching the testcase to this
BZ.
0xba6a67 phi_nodes_ptr(basic_block_def*)
/home/jlaw/test/gcc/gcc/gimple.h:4700
0xba6a67 gsi_start_phis(basic_block_def*)
/home/jlaw/test/gcc/gcc/gimple-iterator.cc:935
0xba6a67 gsi_for_stmt(gimple*)
/home/jlaw/test/gcc/gcc/gimple-iterator.cc:620
0xf477c1 replace_uses_by(tree_node*, tree_node*)
/home/jlaw/test/gcc/gcc/tree-cfg.cc:2055
0x111b731 clean_up_loop_closed_phi(function*)
/home/jlaw/test/gcc/gcc/tree-ssa-propagate.cc:1296
0xd23348 loop_optimizer_finalize(function*, bool)
/home/jlaw/test/gcc/gcc/loop-init.cc:146
0x10e1448 tree_ssa_loop_done
/home/jlaw/test/gcc/gcc/tree-ssa-loop.cc:478
0x10e1498 execute
/home/jlaw/test/gcc/gcc/tree-ssa-loop.cc:507
Compile with -Os -g
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (5 preceding siblings ...)
2023-11-01 0:39 ` law at gcc dot gnu.org
@ 2023-11-01 0:40 ` law at gcc dot gnu.org
2023-11-01 7:32 ` dcb314 at hotmail dot com
` (7 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: law at gcc dot gnu.org @ 2023-11-01 0:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
--- Comment #6 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Created attachment 56480
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56480&action=edit
Testcase for fr30-elf -Os -g
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (6 preceding siblings ...)
2023-11-01 0:40 ` law at gcc dot gnu.org
@ 2023-11-01 7:32 ` dcb314 at hotmail dot com
2023-11-01 11:28 ` pinskia at gcc dot gnu.org
` (6 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2023-11-01 7:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
--- Comment #7 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Hans-Peter Nilsson from comment #4)
> What target?
Sorry, I should have mentioned x86_64.
In my opinion, bugs in the middle end tend to occur on all targets.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (7 preceding siblings ...)
2023-11-01 7:32 ` dcb314 at hotmail dot com
@ 2023-11-01 11:28 ` pinskia at gcc dot gnu.org
2023-11-01 22:45 ` pinskia at gcc dot gnu.org
` (5 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-01 11:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |zhendong.su at inf dot ethz.ch
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112333 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (8 preceding siblings ...)
2023-11-01 11:28 ` pinskia at gcc dot gnu.org
@ 2023-11-01 22:45 ` pinskia at gcc dot gnu.org
2023-11-02 8:29 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-01 22:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gerald at pfeifer dot com
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112343 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (9 preceding siblings ...)
2023-11-01 22:45 ` pinskia at gcc dot gnu.org
@ 2023-11-02 8:29 ` rguenth at gcc dot gnu.org
2023-11-02 8:41 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-11-02 8:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
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
Status|NEW |ASSIGNED
Version|unknown |14.0
Priority|P3 |P1
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (10 preceding siblings ...)
2023-11-02 8:29 ` rguenth at gcc dot gnu.org
@ 2023-11-02 8:41 ` pinskia at gcc dot gnu.org
2023-11-02 8:42 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-02 8:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112345 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (11 preceding siblings ...)
2023-11-02 8:41 ` pinskia at gcc dot gnu.org
@ 2023-11-02 8:42 ` pinskia at gcc dot gnu.org
2023-11-02 10:31 ` cvs-commit at gcc dot gnu.org
2023-11-02 10:31 ` rguenth at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-02 8:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
--- Comment #12 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 112328 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (12 preceding siblings ...)
2023-11-02 8:42 ` pinskia at gcc dot gnu.org
@ 2023-11-02 10:31 ` cvs-commit at gcc dot gnu.org
2023-11-02 10:31 ` rguenth at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-11-02 10:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
--- Comment #13 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:c05f748218a0d556972212d6aecfce0eb4c8a31c
commit r14-5075-gc05f748218a0d556972212d6aecfce0eb4c8a31c
Author: Richard Biener <rguenther@suse.de>
Date: Thu Nov 2 10:39:03 2023 +0100
tree-optimization/112320 - bougs debug IL after SCCP
The following addresses wrong debug IL created by SCCP rewriting stmts
to defined overflow. I addressed another inefficiency there but
needed to adjust the API of rewrite_to_defined_overflow for this
which is now taking a stmt iterator for in-place operation and a
stmt for sequence producing because gsi_for_stmt doesn't work for
stmts not in the IL.
PR tree-optimization/112320
* gimple-fold.h (rewrite_to_defined_overflow): New overload
for in-place operation.
* gimple-fold.cc (rewrite_to_defined_overflow): Add stmt
iterator argument to worker, define separate API for
in-place and not in-place operation.
* tree-if-conv.cc (predicate_statements): Simplify.
* tree-scalar-evolution.cc (final_value_replacement_loop):
Likewise.
* tree-ssa-ifcombine.cc (pass_tree_ifcombine::execute): Adjust.
* tree-ssa-reassoc.cc (update_range_test): Likewise.
* gcc.dg/pr112320.c: New testcase.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/112320] [14 Regression] crash from insert_debug_temp_for_var_def since r14-5032-ge3da1d7bb288c8
2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
` (13 preceding siblings ...)
2023-11-02 10:31 ` cvs-commit at gcc dot gnu.org
@ 2023-11-02 10:31 ` rguenth at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-11-02 10:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112320
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 16+ messages in thread
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2023-10-31 17:31 [Bug c/112320] New: crash from insert_debug_temp_for_var_def dcb314 at hotmail dot com
2023-10-31 17:35 ` [Bug tree-optimization/112320] [14 Regression] " pinskia at gcc dot gnu.org
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