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* [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952
@ 2022-02-28 12:07 asolokha at gmx dot com
2022-02-28 13:00 ` [Bug tree-optimization/104716] " jakub at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: asolokha at gmx dot com @ 2022-02-28 12:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104716
Bug ID: 104716
Summary: ICE in copy_loop_before, at
tree-loop-distribution.cc:952
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gfortran 12.0.1 20220227 snapshot (g:d1574a9b820f17adb9004255e2018967e9be063b)
ICEs when compiling the following testcase w/ -O2 -ftree-loop-distribution
-fno-move-loop-stores -fno-tree-dominator-opts:
SUBROUTINE FOO()
COMMON /WORK/ C2(2, 2)
DIMENSION D11(2)
EQUIVALENCE (D11(1), C2(1, 1))
DO 40 I = 1, 2
DO 30 J = 1, 2
ASSIGN 10 TO ILBL
IF (C2(J, I) .NE. 0.0) THEN
ASSIGN 20 TO ILBL
ENDIF
GO TO ILBL
10 CONTINUE
20 CONTINUE
C2(J, I) = C2(J, I) + 1
30 CONTINUE
40 CONTINUE
DO 50 I = 1, 2
PRINT 90, I
50 CONTINUE
RETURN
90 FORMAT(I5)
END
% gfortran-12.0.1 -O2 -ftree-loop-distribution -fno-move-loop-stores
-fno-tree-dominator-opts -w -c umdmfg43.f
during GIMPLE pass: ldist
umdmfg43.f:1:20:
1 | SUBROUTINE FOO()
| ^
internal compiler error: in copy_loop_before, at tree-loop-distribution.cc:952
0x740892 copy_loop_before
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/tree-loop-distribution.cc:952
0x740892 generate_loops_for_partition
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/tree-loop-distribution.cc:988
0x740892 generate_code_for_partition
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/tree-loop-distribution.cc:1348
0x740892 loop_distribution::distribute_loop(loop*, vec<gimple*, va_heap,
vl_ptr> const&, control_dependences*, int*, bool*, bool)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/tree-loop-distribution.cc:3167
0xff7caf loop_distribution::execute(function*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/tree-loop-distribution.cc:3816
0xff899b execute
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220227/work/gcc-12-20220227/gcc/tree-loop-distribution.cc:3905
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104716] ICE in copy_loop_before, at tree-loop-distribution.cc:952
2022-02-28 12:07 [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952 asolokha at gmx dot com
@ 2022-02-28 13:00 ` jakub at gcc dot gnu.org
2022-03-01 8:01 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-02-28 13:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104716
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-02-28
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started to ICE with r12-3903-g0288527f47cec6698b31ccb3210816415506009e
but unsure if we can call it a regression, because -fno-move-loop-stores wasn't
in GCC 11.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104716] ICE in copy_loop_before, at tree-loop-distribution.cc:952
2022-02-28 12:07 [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952 asolokha at gmx dot com
2022-02-28 13:00 ` [Bug tree-optimization/104716] " jakub at gcc dot gnu.org
@ 2022-03-01 8:01 ` rguenth at gcc dot gnu.org
2022-03-01 14:25 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-03-01 8:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104716
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
Keywords| |ice-on-valid-code
Status|NEW |ASSIGNED
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look to see whether this is a latent issue.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104716] ICE in copy_loop_before, at tree-loop-distribution.cc:952
2022-02-28 12:07 [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952 asolokha at gmx dot com
2022-02-28 13:00 ` [Bug tree-optimization/104716] " jakub at gcc dot gnu.org
2022-03-01 8:01 ` rguenth at gcc dot gnu.org
@ 2022-03-01 14:25 ` cvs-commit at gcc dot gnu.org
2022-03-01 14:26 ` rguenth at gcc dot gnu.org
2022-03-04 1:42 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-03-01 14:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104716
--- Comment #3 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:54ef95cc4d1f3f2cde7c1f13250f889ffb81ca75
commit r12-7432-g54ef95cc4d1f3f2cde7c1f13250f889ffb81ca75
Author: Richard Biener <rguenther@suse.de>
Date: Tue Mar 1 09:24:26 2022 +0100
tree-optimization/104716 - check if we can copy loop in loop distribution
The following checks whether we can copy the loop before attempting
to do so in loop distribution. In the testcase there's a computed
goto and thus abnormal edges which we cannot redirect.
2022-03-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/104716
* tree-loop-distribution.cc (find_seed_stmts_for_distribution):
Check if we can copy the loop.
* gfortran.dg/pr104716.f: New testcase.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104716] ICE in copy_loop_before, at tree-loop-distribution.cc:952
2022-02-28 12:07 [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952 asolokha at gmx dot com
` (2 preceding siblings ...)
2022-03-01 14:25 ` cvs-commit at gcc dot gnu.org
@ 2022-03-01 14:26 ` rguenth at gcc dot gnu.org
2022-03-04 1:42 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-03-01 14:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104716
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed for GCC 12 (but latent).
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/104716] ICE in copy_loop_before, at tree-loop-distribution.cc:952
2022-02-28 12:07 [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952 asolokha at gmx dot com
` (3 preceding siblings ...)
2022-03-01 14:26 ` rguenth at gcc dot gnu.org
@ 2022-03-04 1:42 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-03-04 1:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104716
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
^ permalink raw reply [flat|nested] 6+ messages in thread
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2022-02-28 12:07 [Bug tree-optimization/104716] New: ICE in copy_loop_before, at tree-loop-distribution.cc:952 asolokha at gmx dot com
2022-02-28 13:00 ` [Bug tree-optimization/104716] " jakub at gcc dot gnu.org
2022-03-01 8:01 ` rguenth at gcc dot gnu.org
2022-03-01 14:25 ` cvs-commit at gcc dot gnu.org
2022-03-01 14:26 ` rguenth at gcc dot gnu.org
2022-03-04 1:42 ` pinskia at gcc dot gnu.org
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