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* [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server
@ 2021-10-12 1:45 vsevolod.livinskij at frtk dot ru
2021-10-12 4:55 ` [Bug tree-optimization/102696] [12 Regression] " pinskia at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: vsevolod.livinskij at frtk dot ru @ 2021-10-12 1:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696
Bug ID: 102696
Summary: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551
for skylake-avx512 and icelake-server
Product: gcc
Version: 12.0
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: ---
Link to the Compiler Explorer:
https://godbolt.org/z/WhYP35KKT
Reproducer:
int a;
extern bool b[][14];
char h;
void f(short g[][14]) {
for (short d = h; d < 21; d += 1)
for (unsigned char e = 0; e < 14; e += 1) {
a = 0;
b[d][e] = g[d][e];
}
}
Error:
>$ g++ -c -O3 -march=skylake-avx512 func.cpp
during GIMPLE pass: slp
func.cpp: In function 'void f(short int (*)[14])':
func.cpp:4:6: internal compiler error: in vect_build_slp_tree, at
tree-vect-slp.c:1551
4 | void f(short g[][14]) {
| ^
0x153e92a vect_build_slp_tree
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:1551
0x153ee59 vect_build_slp_tree_2
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:2199
0x153e41c vect_build_slp_tree
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:1532
0x153ee59 vect_build_slp_tree_2
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:2199
0x153e41c vect_build_slp_tree
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:1532
0x153ee59 vect_build_slp_tree_2
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:2199
0x153e41c vect_build_slp_tree
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:1532
0x153ee59 vect_build_slp_tree_2
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:2199
0x153e41c vect_build_slp_tree
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:1532
0x1543ac2 vect_build_slp_instance
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3012
0x1544d35 vect_analyze_slp_instance
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3332
0x1543d96 vect_build_slp_instance
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3230
0x1544d35 vect_analyze_slp_instance
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3332
0x1543d96 vect_build_slp_instance
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3230
0x1544d35 vect_analyze_slp_instance
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3332
0x154979a vect_analyze_slp(vec_info*, unsigned int)
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:3365
0x154d316 vect_slp_analyze_bb_1
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:5746
0x154d316 vect_slp_region
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:5848
0x154f495 vect_slp_bbs
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:6040
0x154f799 vect_slp_function(function*)
/testing/gcc/gcc_src_master/gcc/tree-vect-slp.c:6128
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.
root@86380205c3f4:/testing/result/S_3142105512/reduce# g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/testing/gcc/bin_master/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /testing/gcc/gcc_src_master/configure --enable-multilib
--prefix=/testing/gcc/bin_master --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20211011 (30cce6f65a77b8eaa22f3efff7f1ba54858106f9) (GCC)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/102696] [12 Regression] ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server
2021-10-12 1:45 [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server vsevolod.livinskij at frtk dot ru
@ 2021-10-12 4:55 ` pinskia at gcc dot gnu.org
2021-10-12 4:58 ` pinskia at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-10-12 4:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
Summary|ICE in vect_build_slp_tree, |[12 Regression] ICE in
|at tree-vect-slp.c:1551 for |vect_build_slp_tree, at
|skylake-avx512 and |tree-vect-slp.c:1551 for
|icelake-server |skylake-avx512 and
| |icelake-server
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/102696] [12 Regression] ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server
2021-10-12 1:45 [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server vsevolod.livinskij at frtk dot ru
2021-10-12 4:55 ` [Bug tree-optimization/102696] [12 Regression] " pinskia at gcc dot gnu.org
@ 2021-10-12 4:58 ` pinskia at gcc dot gnu.org
2021-10-12 6:25 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-10-12 4:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2021-10-12
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
Alos this fails the same:
int a;
extern bool b[][14];
char h;
void f(short g[][14]) {
for (short d = h; d < 21; d += 1) {
a = 0;
for (unsigned char e = 0; e < 14; e += 1) {
b[d][e] = g[d][e];
}
}
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/102696] [12 Regression] ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server
2021-10-12 1:45 [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server vsevolod.livinskij at frtk dot ru
2021-10-12 4:55 ` [Bug tree-optimization/102696] [12 Regression] " pinskia at gcc dot gnu.org
2021-10-12 4:58 ` pinskia at gcc dot gnu.org
@ 2021-10-12 6:25 ` rguenth at gcc dot gnu.org
2021-10-12 12:50 ` cvs-commit at gcc dot gnu.org
2021-10-12 12:51 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-10-12 6:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696
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 #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look. Note the issue is probably latent in GCC 11.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/102696] [12 Regression] ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server
2021-10-12 1:45 [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server vsevolod.livinskij at frtk dot ru
` (2 preceding siblings ...)
2021-10-12 6:25 ` rguenth at gcc dot gnu.org
@ 2021-10-12 12:50 ` cvs-commit at gcc dot gnu.org
2021-10-12 12:51 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-10-12 12:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696
--- 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:d1dcaa31453fa080a27938b064e53f02272d4aa1
commit r12-4351-gd1dcaa31453fa080a27938b064e53f02272d4aa1
Author: Richard Biener <rguenther@suse.de>
Date: Tue Oct 12 13:49:39 2021 +0200
tree-optimization/102696 - fix SLP discovery for failed BIT_FIELD_REF
This fixes a forgotten adjustment of matches[] when we fail SLP
discovery.
2021-10-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/102696
* tree-vect-slp.c (vect_build_slp_tree_2): Properly mark
the tree fatally failed when we reject a BIT_FIELD_REF.
* g++.dg/vect/pr102696.cc: New testcase.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/102696] [12 Regression] ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server
2021-10-12 1:45 [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server vsevolod.livinskij at frtk dot ru
` (3 preceding siblings ...)
2021-10-12 12:50 ` cvs-commit at gcc dot gnu.org
@ 2021-10-12 12:51 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-10-12 12:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102696
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed. The branch doesn't cache negative entries so the issue is not latent.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-10-12 12:51 UTC | newest]
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2021-10-12 1:45 [Bug tree-optimization/102696] New: ICE in vect_build_slp_tree, at tree-vect-slp.c:1551 for skylake-avx512 and icelake-server vsevolod.livinskij at frtk dot ru
2021-10-12 4:55 ` [Bug tree-optimization/102696] [12 Regression] " pinskia at gcc dot gnu.org
2021-10-12 4:58 ` pinskia at gcc dot gnu.org
2021-10-12 6:25 ` rguenth at gcc dot gnu.org
2021-10-12 12:50 ` cvs-commit at gcc dot gnu.org
2021-10-12 12:51 ` rguenth at gcc dot gnu.org
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