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* [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740
@ 2022-09-07 18:31 dcb314 at hotmail dot com
2022-09-07 18:41 ` [Bug c/106881] " dcb314 at hotmail dot com
` (14 more replies)
0 siblings, 15 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2022-09-07 18:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Bug ID: 106881
Summary: ice in init_from_control_deps, at
gimple-predicate-analysis.cc:1740
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 53546
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53546&action=edit
C source code
The attached C code does this:
/home/dcb/gcc/results/bin/gcc -c -O1 -Wall -fexceptions bug843.c
during GIMPLE pass: uninit
src/eap-gtc.c: In function ‘eap_gtc_check_settings’:
src/eap-gtc.c:74:12: internal compiler error: in init_from_control_deps, at
gimple-predicate-analysis.cc:1740
0x1b161f5 predicate::init_from_control_deps(vec<edge_def*, va_heap, vl_ptr>
const*, unsigned int, bool)
../../trunk.git/gcc/gimple-predicate-analysis.cc:1740
0x1b16974 uninit_analysis::init_use_preds(predicate&, basic_block_def*,
basic_block_def*)
../../trunk.git/gcc/gimple-predicate-analysis.cc:1996
I will have a go at producing a git range and a reduction.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug c/106881] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
@ 2022-09-07 18:41 ` dcb314 at hotmail dot com
2022-09-07 18:42 ` dcb314 at hotmail dot com
` (13 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2022-09-07 18:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
Git range seems to be d6582c662ca0da05..cdcc27c1ca9c485c, i.e. since yesterday.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug c/106881] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
2022-09-07 18:41 ` [Bug c/106881] " dcb314 at hotmail dot com
@ 2022-09-07 18:42 ` dcb314 at hotmail dot com
2022-09-07 18:44 ` [Bug tree-optimization/106881] [13 Regression] " pinskia at gcc dot gnu.org
` (12 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2022-09-07 18:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code seems to be:
inline auto_free(void *a) {
void **p = a;
l_free(*p);
}
eap_gtc_check_settings() {
char *identity __attribute__((cleanup(auto_free)));
char password __attribute__((cleanup(auto_free)));
identity = l_settings_get_string();
eap_append_secret();
}
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
2022-09-07 18:41 ` [Bug c/106881] " dcb314 at hotmail dot com
2022-09-07 18:42 ` dcb314 at hotmail dot com
@ 2022-09-07 18:44 ` pinskia at gcc dot gnu.org
2022-09-07 18:46 ` pinskia at gcc dot gnu.org
` (11 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-09-07 18:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|ice in |[13 Regression] ice in
|init_from_control_deps, at |init_from_control_deps, at
|gimple-predicate-analysis.c |gimple-predicate-analysis.c
|c:1740 |c:1740
Keywords| |diagnostic,
| |ice-on-valid-code
Version|12.0 |13.0
Target Milestone|--- |13.0
Component|c |tree-optimization
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (2 preceding siblings ...)
2022-09-07 18:44 ` [Bug tree-optimization/106881] [13 Regression] " pinskia at gcc dot gnu.org
@ 2022-09-07 18:46 ` pinskia at gcc dot gnu.org
2022-09-07 19:29 ` dcb314 at hotmail dot com
` (10 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-09-07 18:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=106866
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Are you sure this was not already fixed by r13-2518-ga262f969d6fd936f4fb5 (aka
PR 106866)
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (3 preceding siblings ...)
2022-09-07 18:46 ` pinskia at gcc dot gnu.org
@ 2022-09-07 19:29 ` dcb314 at hotmail dot com
2022-09-07 19:34 ` [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7 marxin at gcc dot gnu.org
` (9 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2022-09-07 19:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- Comment #4 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Andrew Pinski from comment #3)
> Are you sure this was not already fixed by r13-2518-ga262f969d6fd936f4fb5
> (aka PR 106866)
Pretty sure. The git range I gave includes this commit.
Feel free to check. It is not unknown for me to make an error with git.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (4 preceding siblings ...)
2022-09-07 19:29 ` dcb314 at hotmail dot com
@ 2022-09-07 19:34 ` marxin at gcc dot gnu.org
2022-09-08 9:36 ` rguenth at gcc dot gnu.org
` (8 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-09-07 19:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2022-09-07
Summary|[13 Regression] ice in |[13 Regression] ice in
|init_from_control_deps, at |init_from_control_deps, at
|gimple-predicate-analysis.c |gimple-predicate-analysis.c
|c:1740 |c:1740 since
| |r13-2500-g0a4a2667dc115ca7
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Still present on master (d7f282c4243e24f567b11a5cb6048a27a3df733d), started
with r13-2500-g0a4a2667dc115ca7.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (5 preceding siblings ...)
2022-09-07 19:34 ` [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7 marxin at gcc dot gnu.org
@ 2022-09-08 9:36 ` rguenth at gcc dot gnu.org
2022-09-08 11:11 ` cvs-commit at gcc dot gnu.org
` (7 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-09-08 9:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (6 preceding siblings ...)
2022-09-08 9:36 ` rguenth at gcc dot gnu.org
@ 2022-09-08 11:11 ` cvs-commit at gcc dot gnu.org
2022-09-08 11:12 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-09-08 11:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- Comment #7 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:c8d3b44dfa2851659f966627835497667c5fed6c
commit r13-2537-gc8d3b44dfa2851659f966627835497667c5fed6c
Author: Richard Biener <rguenther@suse.de>
Date: Thu Sep 8 12:22:26 2022 +0200
tree-optimization/106881 - constrain uninit control edge add
The following avoids adding fallthru edges to the control chain from
the post-dominator walk.
PR tree-optimization/106881
* gimple-predicate-analysis.cc (compute_control_dep_chain_pdom):
Add only non-fallthru edges and avoid the same set of edges
as the caller does.
* gcc.dg/uninit-pr106881.c: New testcase.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (7 preceding siblings ...)
2022-09-08 11:11 ` cvs-commit at gcc dot gnu.org
@ 2022-09-08 11:12 ` rguenth at gcc dot gnu.org
2022-09-08 15:17 ` sbergman at redhat dot com
` (5 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-09-08 11:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Interesting, we have
<bb 10> [count: 0]:
resx 3
<bb 11> [count: 0]:
<L10>:
goto <bb 13>; [100.00%]
with an EH edge from 10 to 11. That looks like a missed optimization,
eliding the RESX and turning the EH edge into a fallthru.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (8 preceding siblings ...)
2022-09-08 11:12 ` rguenth at gcc dot gnu.org
@ 2022-09-08 15:17 ` sbergman at redhat dot com
2022-09-09 7:12 ` dcb314 at hotmail dot com
` (4 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: sbergman at redhat dot com @ 2022-09-08 15:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Stephan Bergmann <sbergman at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sbergman at redhat dot com
--- Comment #9 from Stephan Bergmann <sbergman at redhat dot com> ---
*** Bug 106891 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (9 preceding siblings ...)
2022-09-08 15:17 ` sbergman at redhat dot com
@ 2022-09-09 7:12 ` dcb314 at hotmail dot com
2022-09-09 8:29 ` marxin at gcc dot gnu.org
` (3 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: dcb314 at hotmail dot com @ 2022-09-09 7:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- Comment #10 from David Binderman <dcb314 at hotmail dot com> ---
Created attachment 53554
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53554&action=edit
gzipped C++ source code
The attached C++ code, after Richard's fix, seems to break gcc.
Flags -O1 -Wall required.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (10 preceding siblings ...)
2022-09-09 7:12 ` dcb314 at hotmail dot com
@ 2022-09-09 8:29 ` marxin at gcc dot gnu.org
2022-09-09 8:39 ` rguenther at suse dot de
` (2 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-09-09 8:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|FIXED |---
Status|RESOLVED |REOPENED
--- Comment #11 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, reducing that right now..
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (11 preceding siblings ...)
2022-09-09 8:29 ` marxin at gcc dot gnu.org
@ 2022-09-09 8:39 ` rguenther at suse dot de
2022-09-09 9:48 ` cvs-commit at gcc dot gnu.org
2022-09-09 9:48 ` rguenth at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: rguenther at suse dot de @ 2022-09-09 8:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- Comment #12 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 9 Sep 2022, marxin at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
>
> Martin Li?ka <marxin at gcc dot gnu.org> changed:
>
> What |Removed |Added
> ----------------------------------------------------------------------------
> Resolution|FIXED |---
> Status|RESOLVED |REOPENED
>
> --- Comment #11 from Martin Li?ka <marxin at gcc dot gnu.org> ---
> Confirmed, reducing that right now..
I'm already testing the obvious patch - reduction will be iffy because
you need to run into compile-time limits to get the fallback
implementation triggering ...
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (12 preceding siblings ...)
2022-09-09 8:39 ` rguenther at suse dot de
@ 2022-09-09 9:48 ` cvs-commit at gcc dot gnu.org
2022-09-09 9:48 ` rguenth at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-09-09 9:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
--- 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:923da63e0f69b091014df5cc91498756053b1a46
commit r13-2557-g923da63e0f69b091014df5cc91498756053b1a46
Author: Richard Biener <rguenther@suse.de>
Date: Fri Sep 9 09:56:45 2022 +0200
tree-optimization/106881 - fix simple_control_dep_chain part
This adjusts simple_control_dep_chain in the same way I adjusted
compute_control_dep_chain_pdom to avoid adding fallthru edges to
the predicate chain.
PR tree-optimization/106881
* gimple-predicate-analysis.cc (simple_control_dep_chain):
Add only non-fallthru edges and avoid the same set of edges
as compute_control_dep_chain_pdom does.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7
2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
` (13 preceding siblings ...)
2022-09-09 9:48 ` cvs-commit at gcc dot gnu.org
@ 2022-09-09 9:48 ` rguenth at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-09-09 9:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106881
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|REOPENED |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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2022-09-07 18:31 [Bug c/106881] New: ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 dcb314 at hotmail dot com
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2022-09-07 18:42 ` dcb314 at hotmail dot com
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2022-09-07 19:34 ` [Bug tree-optimization/106881] [13 Regression] ice in init_from_control_deps, at gimple-predicate-analysis.cc:1740 since r13-2500-g0a4a2667dc115ca7 marxin at gcc dot gnu.org
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2022-09-09 7:12 ` dcb314 at hotmail dot com
2022-09-09 8:29 ` marxin at gcc dot gnu.org
2022-09-09 8:39 ` rguenther at suse dot de
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