* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
@ 2021-02-28 21:08 ` alexander.lelyakin at googlemail dot com
2021-03-09 7:51 ` alexander.lelyakin at googlemail dot com
` (6 subsequent siblings)
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From: alexander.lelyakin at googlemail dot com @ 2021-02-28 21:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
--- Comment #1 from Alexander Lelyakin <alexander.lelyakin at googlemail dot com> ---
There is a shorter sequence:
g++ -std=c++20 -fmodules-ts -x c++-system-header fstream
g++ -std=c++20 -fmodules-ts -x c++-system-header string_view
g++ -std=c++20 -fmodules-ts -x c++-system-header locale
----
/usr/local/include/c++/11.0.1/locale: internal compiler error: Segmentation
fault
0x10fc36f crash_signal
../../gcc/gcc/toplev.c:327
0x6de73c trees_out::get_tag(tree_node*)
../../gcc/gcc/cp/module.cc:4898
0x6de73c trees_out::ref_node(tree_node*)
../../gcc/gcc/cp/module.cc:7205
0x6de73c trees_out::ref_node(tree_node*)
../../gcc/gcc/cp/module.cc:7188
0xa5c4dc trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9055
0xa5e411 trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8778
0xa5c8da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9138
0xa5e1cc trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8696
0xa5c8da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9138
0xa5e654 trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8805
0xa5c8da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9138
0xa5e1cc trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8696
0xa5c8da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9138
0xa5d20f trees_out::core_vals(tree_node*)
../../gcc/gcc/cp/module.cc:6108
0xa5e0ec trees_out::tree_node_vals(tree_node*)
../../gcc/gcc/cp/module.cc:7168
0xa5e0ec trees_out::fn_parms_init(tree_node*)
../../gcc/gcc/cp/module.cc:10069
0xa5b086 trees_out::decl_value(tree_node*, depset*)
../../gcc/gcc/cp/module.cc:7765
0xa625c3 depset::hash::find_dependencies(module_state*)
../../gcc/gcc/cp/module.cc:13237
0xa62c28 module_state::write(elf_out*, cpp_reader*)
../../gcc/gcc/cp/module.cc:17652
0xa640cf finish_module_processing(cpp_reader*)
../../gcc/gcc/cp/module.cc:19922
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.
----
g++ (GCC) 11.0.1 20210228 (experimental)
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
2021-02-28 21:08 ` [Bug c++/99238] " alexander.lelyakin at googlemail dot com
@ 2021-03-09 7:51 ` alexander.lelyakin at googlemail dot com
2021-03-09 8:19 ` alexander.lelyakin at googlemail dot com
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: alexander.lelyakin at googlemail dot com @ 2021-03-09 7:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
--- Comment #2 from Alexander Lelyakin <alexander.lelyakin at googlemail dot com> ---
Even shorter sequence:
g++ -std=c++20 -fmodules-ts -x c++-system-header stdexcept
g++ -std=c++20 -fmodules-ts -x c++-system-header stop_token
----
/usr/local/include/c++/11.0.1/stop_token: internal compiler error: Segmentation
fault
0x10fee8f crash_signal
../../gcc/gcc/toplev.c:327
0x6deab8 trees_out::get_tag(tree_node*)
../../gcc/gcc/cp/module.cc:4783
0x6deab8 trees_out::ref_node(tree_node*)
../../gcc/gcc/cp/module.cc:7090
0x6deab8 trees_out::ref_node(tree_node*)
../../gcc/gcc/cp/module.cc:7073
0xa5dfdc trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:8978
0xa5fec9 trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8701
0xa5e3da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9061
0xa5cbda trees_out::tree_node_vals(tree_node*)
../../gcc/gcc/cp/module.cc:7053
0xa5cbda trees_out::decl_value(tree_node*, depset*)
../../gcc/gcc/cp/module.cc:7640
0xa5d1ab trees_out::decl_node(tree_node*, walk_kind)
../../gcc/gcc/cp/module.cc:8549
0xa5e1a2 trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9104
0xa5e66d trees_out::vec_chained_decls(tree_node*)
../../gcc/gcc/cp/module.cc:4879
0xa6255b trees_out::write_class_def(tree_node*)
../../gcc/gcc/cp/module.cc:11642
0xa6424c depset::hash::find_dependencies(module_state*)
../../gcc/gcc/cp/module.cc:13172
0xa64668 module_state::write(elf_out*, cpp_reader*)
../../gcc/gcc/cp/module.cc:17644
0xa65aff finish_module_processing(cpp_reader*)
../../gcc/gcc/cp/module.cc:19884
0x9f901b c_parse_final_cleanups()
../../gcc/gcc/cp/decl2.c:5175
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.
----
g++ (GCC) 11.0.1 20210308 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
2021-02-28 21:08 ` [Bug c++/99238] " alexander.lelyakin at googlemail dot com
2021-03-09 7:51 ` alexander.lelyakin at googlemail dot com
@ 2021-03-09 8:19 ` alexander.lelyakin at googlemail dot com
2021-03-12 13:59 ` nathan at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: alexander.lelyakin at googlemail dot com @ 2021-03-09 8:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
--- Comment #3 from Alexander Lelyakin <alexander.lelyakin at googlemail dot com> ---
About half of sequences of headers producing segmentation fault are stopped on
<stop_token>.
However there are another variants:
----
g++ -std=c++20 -fmodules-ts -x c++-system-header stdexcept
g++ -std=c++20 -fmodules-ts -x c++-system-header locale
----
/usr/local/include/c++/11.0.1/locale: internal compiler error: Segmentation
fault
0x10fee8f crash_signal
../../gcc/gcc/toplev.c:327
0x6deab8 trees_out::get_tag(tree_node*)
../../gcc/gcc/cp/module.cc:4783
0x6deab8 trees_out::ref_node(tree_node*)
../../gcc/gcc/cp/module.cc:7090
0x6deab8 trees_out::ref_node(tree_node*)
../../gcc/gcc/cp/module.cc:7073
0xa5dfdc trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:8978
0xa5fec9 trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8701
0xa5e3da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9061
0xa5fccc trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8619
0xa5e3da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9061
0xa60104 trees_out::type_node(tree_node*)
../../gcc/gcc/cp/module.cc:8728
0xa5e3da trees_out::tree_node(tree_node*)
../../gcc/gcc/cp/module.cc:9061
0xa5ed0f trees_out::core_vals(tree_node*)
../../gcc/gcc/cp/module.cc:5993
0xa5fbec trees_out::tree_node_vals(tree_node*)
../../gcc/gcc/cp/module.cc:7053
0xa5fbec trees_out::fn_parms_init(tree_node*)
../../gcc/gcc/cp/module.cc:9992
0xa5c4c4 trees_out::decl_value(tree_node*, depset*)
../../gcc/gcc/cp/module.cc:7625
0xa63fd1 depset::hash::find_dependencies(module_state*)
../../gcc/gcc/cp/module.cc:13169
0xa64668 module_state::write(elf_out*, cpp_reader*)
../../gcc/gcc/cp/module.cc:17644
0xa65aff finish_module_processing(cpp_reader*)
../../gcc/gcc/cp/module.cc:19884
0x9f901b c_parse_final_cleanups()
../../gcc/gcc/cp/decl2.c:5175
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.
----
g++ (GCC) 11.0.1 20210308 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
` (2 preceding siblings ...)
2021-03-09 8:19 ` alexander.lelyakin at googlemail dot com
@ 2021-03-12 13:59 ` nathan at gcc dot gnu.org
2021-03-12 18:23 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: nathan at gcc dot gnu.org @ 2021-03-12 13:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2021-03-12
--- Comment #4 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
// pr99238.h
struct tm;
// pr99238_a.H
#include "pr99238.h"
// pr99238_b.H
#include "pr99238.h"
import "pr99238_a.H";
namespace std
{
using ::tm;
}
zathras:116>./cc1plus -quiet -fmodule-header pr99238_a.H && ./cc1plus -quiet
-fmodule-header pr99238_b.H
pr99238_b.H: internal compiler error: Segmentation fault
0x16c420a crash_signal
../../../src/gcc/toplev.c:327
0xcb70b2 trees_out::get_tag(tree_node*)
../../../src/gcc/cp/module.cc:4779
0xcc01d2 trees_out::ref_node(tree_node*)
../../../src/gcc/cp/module.cc:7086
0xcc93ab trees_out::tree_node(tree_node*)
../../../src/gcc/cp/module.cc:8974
0xcde8cf depset::hash::find_dependencies(module_state*)
../../../src/gcc/cp/module.cc:13114
0xceb673 module_state::write(elf_out*, cpp_reader*)
../../../src/gcc/cp/module.cc:17618
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
` (3 preceding siblings ...)
2021-03-12 13:59 ` nathan at gcc dot gnu.org
@ 2021-03-12 18:23 ` cvs-commit at gcc dot gnu.org
2021-03-12 18:23 ` nathan at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-03-12 18:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Nathan Sidwell <nathan@gcc.gnu.org>:
https://gcc.gnu.org/g:6e885ad3287388192e52e9b524dbaa408507c0a4
commit r11-7651-g6e885ad3287388192e52e9b524dbaa408507c0a4
Author: Nathan Sidwell <nathan@acm.org>
Date: Fri Mar 12 09:02:41 2021 -0800
c++: ICE with using-decl [PR 99238]
This ICE was caused by a stray TREE_VISITED marker. The lookup
machinery was leaving it there due to the way I'd arranged for it to
be cleared. That was presuming the name_lookup::value field didn't
change, and that wasn't always true in the using-decl processing. I
took the opportunity to break out a helper, and then call it
immediately after lookups, rather than wait until destructor time.
Added some asserts the module machinery to catch further cases of
this.
PR c++/99238
gcc/cp/
* module.cc (depset::hash::add_binding_entity): Assert not
visited.
(depset::add::add_specializations): Likewise.
* name-lookup.c (name_lookup::dedup): New.
(name_lookup::~name_lookup): Assert not deduping.
(name_lookup::restore_state): Likewise.
(name_lookup::add_overload): Replace outlined code with dedup
call.
(name_lookup::add_value): Likewise.
(name_lookup::search_namespace_only): Likewise.
(name_lookup::adl_namespace_fns): Likewise.
(name_lookup::adl_class_fns): Likewise.
(name_lookup::search_adl): Likewise. Add clearing dedup call.
(name_lookup::search_qualified): Likewise.
(name_lookup::search_unqualified): Likewise.
gcc/testsuite/
* g++.dg/modules/pr99238.h: New.
* g++.dg/modules/pr99238_a.H: New.
* g++.dg/modules/pr99238_b.H: New.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
` (4 preceding siblings ...)
2021-03-12 18:23 ` cvs-commit at gcc dot gnu.org
@ 2021-03-12 18:23 ` nathan at gcc dot gnu.org
2021-03-13 7:02 ` alexander.lelyakin at googlemail dot com
2021-03-15 12:43 ` nathan at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: nathan at gcc dot gnu.org @ 2021-03-12 18:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
* 6e885ad3287 2021-03-12 | c++: ICE with using-decl [PR 99238]
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
` (5 preceding siblings ...)
2021-03-12 18:23 ` nathan at gcc dot gnu.org
@ 2021-03-13 7:02 ` alexander.lelyakin at googlemail dot com
2021-03-15 12:43 ` nathan at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: alexander.lelyakin at googlemail dot com @ 2021-03-13 7:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
Alexander Lelyakin <alexander.lelyakin at googlemail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #7 from Alexander Lelyakin <alexander.lelyakin at googlemail dot com> ---
g++ -std=c++20 -fmodules-ts -x c++-system-header condition_variable
g++ -std=c++20 -fmodules-ts -x c++-system-header numbers
g++ -std=c++20 -fmodules-ts -x c++-system-header type_traits
g++ -std=c++20 -fmodules-ts -x c++-system-header future
----
In file included from /usr/local/include/c++/11.0.1/future:43:
/usr/local/include/c++/11.0.1/bits/atomic_futex.h:82:7: internal compiler
error: Segmentation fault
82 | { }
| ^
0x10ffe0f crash_signal
../../gcc/gcc/toplev.c:327
0xc2bb99 clear_marks
../../gcc/gcc/ggc-page.c:1895
0xc2d16c ggc_collect()
../../gcc/gcc/ggc-page.c:2219
0xacd901 cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:30020
0xacddac cp_parser_late_parsing_for_member
../../gcc/gcc/cp/parser.c:30914
0xaa80a3 cp_parser_class_specifier_1
../../gcc/gcc/cp/parser.c:25158
0xaa8fb3 cp_parser_class_specifier
../../gcc/gcc/cp/parser.c:25182
0xaa8fb3 cp_parser_type_specifier
../../gcc/gcc/cp/parser.c:18429
0xaa9f49 cp_parser_decl_specifier_seq
../../gcc/gcc/cp/parser.c:15051
0xad4b06 cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:30412
0xad4e86 cp_parser_template_declaration_after_parameters
../../gcc/gcc/cp/parser.c:30075
0xad5630 cp_parser_explicit_template_declaration
../../gcc/gcc/cp/parser.c:30341
0xad7d59 cp_parser_declaration
../../gcc/gcc/cp/parser.c:14057
0xad7329 cp_parser_toplevel_declaration
../../gcc/gcc/cp/parser.c:14155
0xad7329 cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:13943
0xad77c2 cp_parser_namespace_body
../../gcc/gcc/cp/parser.c:20443
0xad77c2 cp_parser_namespace_definition
../../gcc/gcc/cp/parser.c:20421
0xad7f18 cp_parser_declaration
../../gcc/gcc/cp/parser.c:14106
0xad876c cp_parser_toplevel_declaration
../../gcc/gcc/cp/parser.c:14155
0xad876c cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4940
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.
----
g++ (GCC) 11.0.1 20210312 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug c++/99238] [modules] internal compiler error: segmentation fault
2021-02-24 8:35 [Bug c++/99238] New: [modules] internal compiler error: segmentation fault alexander.lelyakin at googlemail dot com
` (6 preceding siblings ...)
2021-03-13 7:02 ` alexander.lelyakin at googlemail dot com
@ 2021-03-15 12:43 ` nathan at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: nathan at gcc dot gnu.org @ 2021-03-15 12:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99238
Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
please don;t reopen bugs with different ICEs
^ permalink raw reply [flat|nested] 9+ messages in thread