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* [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3
@ 2020-11-30 6:43 vsevolod.livinskij at frtk dot ru
2020-11-30 8:15 ` [Bug tree-optimization/98064] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: vsevolod.livinskij at frtk dot ru @ 2020-11-30 6:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064
Bug ID: 98064
Summary: ICE in check_loop_closed_ssa_def, at
tree-ssa-loop-manip.c:726 with -O3
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vsevolod.livinskij at frtk dot ru
Target Milestone: ---
Error:
>$ g++ -c -O3 func.cpp
during GIMPLE pass: slp
func.cpp: In function ‘void test()’:
func.cpp:8:6: internal compiler error: in check_loop_closed_ssa_def, at
tree-ssa-loop-manip.c:726
8 | void test() {
| ^~~~
0x84b706 check_loop_closed_ssa_def
/home/vlivinsk/workspace/gcc/gcc_src/gcc/tree-ssa-loop-manip.c:726
0x12ae78d check_loop_closed_ssa_bb
/home/vlivinsk/workspace/gcc/gcc_src/gcc/tree-ssa-loop-manip.c:752
0x12b05d6 verify_loop_closed_ssa(bool, loop*)
/home/vlivinsk/workspace/gcc/gcc_src/gcc/tree-ssa-loop-manip.c:777
0x12b05d6 verify_loop_closed_ssa(bool, loop*)
/home/vlivinsk/workspace/gcc/gcc_src/gcc/tree-ssa-loop-manip.c:761
0x1062c24 execute_function_todo
/home/vlivinsk/workspace/gcc/gcc_src/gcc/passes.c:2057
0x10638ae execute_todo
/home/vlivinsk/workspace/gcc/gcc_src/gcc/passes.c:2093
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.
Reproducer:
#include <algorithm>
extern long var_2;
extern int var_3, var_8;
extern long long var_5;
extern unsigned short arr_353[];
extern short arr_362[];
extern int arr_518[];
void test() {
for (char d = 0; d < 013; d += 4) {
for (char e = 0; e < 11; e++)
arr_353[e] = var_2 | std::min((long long)7, var_5);
for (int f = var_5; f; f += 4)
for (short g = var_8; g; g++)
arr_362[g] = 0;
}
for (short h = 5; (short)var_2; h += 5)
arr_518[h] = 0;
}
gcc version 11.0.0 20201126 (beb9afcaf1466996a301c778596c5df209e7913c)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3
2020-11-30 6:43 [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 vsevolod.livinskij at frtk dot ru
@ 2020-11-30 8:15 ` rguenth at gcc dot gnu.org
2020-11-30 9:12 ` [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814 marxin at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-30 8:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2020-11-30
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814
2020-11-30 6:43 [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 vsevolod.livinskij at frtk dot ru
2020-11-30 8:15 ` [Bug tree-optimization/98064] " rguenth at gcc dot gnu.org
@ 2020-11-30 9:12 ` marxin at gcc dot gnu.org
2020-11-30 11:58 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-11-30 9:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|ICE in |ICE in
|check_loop_closed_ssa_def, |check_loop_closed_ssa_def,
|at |at
|tree-ssa-loop-manip.c:726 |tree-ssa-loop-manip.c:726
|with -O3 |with -O3 since
| |r11-4921-g86cca5cc14602814
CC| |marxin at gcc dot gnu.org
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
For the record, started with r11-4921-g86cca5cc14602814.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814
2020-11-30 6:43 [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 vsevolod.livinskij at frtk dot ru
2020-11-30 8:15 ` [Bug tree-optimization/98064] " rguenth at gcc dot gnu.org
2020-11-30 9:12 ` [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814 marxin at gcc dot gnu.org
@ 2020-11-30 11:58 ` rguenth at gcc dot gnu.org
2020-11-30 13:30 ` cvs-commit at gcc dot gnu.org
2020-11-30 13:30 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-30 11:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is
t.C:11:24: note: extracting lane for live stmt _201 = (signed short) pretmp_25;
where the vectorized def of this out-of-loop definition is in-loop and thus
replacing its uses would require a LC-SSA def.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814
2020-11-30 6:43 [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 vsevolod.livinskij at frtk dot ru
` (2 preceding siblings ...)
2020-11-30 11:58 ` rguenth at gcc dot gnu.org
@ 2020-11-30 13:30 ` cvs-commit at gcc dot gnu.org
2020-11-30 13:30 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-11-30 13:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064
--- 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:ebbe3f29518854c36574adbd4fa82fd56fa64056
commit r11-5542-gebbe3f29518854c36574adbd4fa82fd56fa64056
Author: Richard Biener <rguenther@suse.de>
Date: Mon Nov 30 13:39:59 2020 +0100
tree-optimization/98064 - fix BB SLP live lane extract wrt LC SSA
This avoids breaking LC SSA when SLP codegen pulled an out-of-loop
def into a loop when merging with in-loop defs for an external def.
2020-11-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/98064
* tree-vect-loop.c (vectorizable_live_operation): Avoid
breaking LC SSA for BB vectorization.
* g++.dg/vect/pr98064.cc: New testcase.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814
2020-11-30 6:43 [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 vsevolod.livinskij at frtk dot ru
` (3 preceding siblings ...)
2020-11-30 13:30 ` cvs-commit at gcc dot gnu.org
@ 2020-11-30 13:30 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-30 13:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98064
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2020-11-30 6:43 [Bug tree-optimization/98064] New: ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 vsevolod.livinskij at frtk dot ru
2020-11-30 8:15 ` [Bug tree-optimization/98064] " rguenth at gcc dot gnu.org
2020-11-30 9:12 ` [Bug tree-optimization/98064] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.c:726 with -O3 since r11-4921-g86cca5cc14602814 marxin at gcc dot gnu.org
2020-11-30 11:58 ` rguenth at gcc dot gnu.org
2020-11-30 13:30 ` cvs-commit at gcc dot gnu.org
2020-11-30 13:30 ` rguenth at gcc dot gnu.org
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