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* [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
@ 2020-10-20 7:34 marxin at gcc dot gnu.org
2020-10-20 7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-10-20 7:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500
Bug ID: 97500
Summary: [11 Regression] ICE in vect_schedule_slp_instance, at
tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
Since the revision, the following fails:
$ gfortran
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.fortran-torture/execute/pr57396.f90
-O3 -fno-guess-branch-probability -c
during GIMPLE pass: vect
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.fortran-torture/execute/pr57396.f90:30:0:
30 | use testmod
|
internal compiler error: in vect_schedule_slp_instance, at tree-vect-slp.c:5094
0x738c15 vect_schedule_slp_instance
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5094
0x10c8a37 vect_schedule_slp_instance
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5047
0x10c8a37 vect_schedule_slp_instance
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5047
0x10c8a37 vect_schedule_slp_instance
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5047
0x10ca782 vect_schedule_slp(vec_info*, vec<_slp_instance*, va_heap, vl_ptr>)
/home/marxin/Programming/gcc/gcc/tree-vect-slp.c:5305
0x10aedb8 vect_transform_loop(_loop_vec_info*, gimple*)
/home/marxin/Programming/gcc/gcc/tree-vect-loop.c:9095
0x10d070c try_vectorize_loop_1
/home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1089
0x10d1389 vectorize_loops()
/home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1226
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
2020-10-20 7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
@ 2020-10-20 7:34 ` marxin at gcc dot gnu.org
2020-10-20 9:46 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-10-20 7:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |10.2.0
Priority|P3 |P1
Status|UNCONFIRMED |NEW
Target Milestone|--- |11.0
Last reconfirmed| |2020-10-20
Known to fail| |11.0
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
2020-10-20 7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
2020-10-20 7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
@ 2020-10-20 9:46 ` rguenth at gcc dot gnu.org
2020-10-21 9:43 ` cvs-commit at gcc dot gnu.org
2020-10-21 9:43 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-10-20 9:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500
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 #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I have a patch.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
2020-10-20 7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
2020-10-20 7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
2020-10-20 9:46 ` rguenth at gcc dot gnu.org
@ 2020-10-21 9:43 ` cvs-commit at gcc dot gnu.org
2020-10-21 9:43 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-10-21 9:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500
--- Comment #2 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:d94093013877cde3dce5c243099ad54668849400
commit r11-4185-gd94093013877cde3dce5c243099ad54668849400
Author: Richard Biener <rguenther@suse.de>
Date: Wed Oct 21 10:54:54 2020 +0200
tree-optimization/97500 - avoid SLP backedges for inductions
Inductions are not vectorized as cycle but materialized from SCEV data.
Filling in backedge SLP nodes confuses this process.
2020-10-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/97500
* tree-vect-slp.c (vect_analyze_slp_backedges): Do not
fill backedges for inductions.
* gfortran.dg/pr97500.f90: New testcase.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug tree-optimization/97500] [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853
2020-10-20 7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
` (2 preceding siblings ...)
2020-10-21 9:43 ` cvs-commit at gcc dot gnu.org
@ 2020-10-21 9:43 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-10-21 9:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97500
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2020-10-20 7:34 [Bug tree-optimization/97500] New: [11 Regression] ICE in vect_schedule_slp_instance, at tree-vect-slp.c:5094 since r11-3823-g126ed72b9f48f853 marxin at gcc dot gnu.org
2020-10-20 7:34 ` [Bug tree-optimization/97500] " marxin at gcc dot gnu.org
2020-10-20 9:46 ` rguenth at gcc dot gnu.org
2020-10-21 9:43 ` cvs-commit at gcc dot gnu.org
2020-10-21 9:43 ` rguenth at gcc dot gnu.org
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