https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120016
Bug ID: 120016
Summary: SIGSEGV ICE with modules related to instantiation of
templates across partition units (case 3)
Product: gcc
Version: 15.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: miuna.oshino at gmail dot com
Target Milestone: ---
Created attachment 61246
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61246&action=edit
Crash 3 project files + preprocessed source
Possible duplicate of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120013 and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120014, though this is a different
crash message.
> In all cases g++ crashes because of including certain std headers in `hewwo`
> in the partition chain `hewwo -> uwu -> owo`.
> Many headers cause this, but we will use <chrono> as a scapegoat because it
> is my sworn enemy
>
> CRASH 3: some iterator stuff <https://godbolt.org/z/oa1T1MfG5>
> - `hewwo`: Variable with <chrono>
> - `uwu`: Alias to DIFFERENT array **(no chrono)**
> - `owo`: **NOTHING**, but WITH <chrono>
> - Including <chrono> in all 3 fixes it.
> - Eerily similar again, wondering if it's just the same issue
> - **This one does give some information**
FAILED: CMakeFiles/meow.dir/owo.ixx.o CMakeFiles/meow.dir/meow-owo.gcm
/usr/local/bin/g++ -std=c++20 -freport-bug -Wall -Wextra -pedantic -MD -MT
CMakeFiles/meow.dir/owo.ixx.o -MF CMakeFiles/meow.dir/owo.ixx.o.d -fmodules-ts
-fmodule-mapper=CMakeFiles/meow.dir/owo.ixx.o.modmap -MD -fdeps-format=p1689r5
-x c++ -o CMakeFiles/meow.dir/owo.ixx.o -c /home/miuna/dev/crash-3/owo.ixx
In file included from /usr/local/include/c++/15.1.0/bits/stl_algobase.h:65,
from /usr/local/include/c++/15.1.0/array:45,
from /home/miuna/dev/crash-3/owo.ixx:3:
/usr/local/include/c++/15.1.0/bits/stl_iterator_base_types.h: In substitution
of ‘template<class _InIter> using std::_RequireInputIter =
std::__enable_if_t<((bool)std::is_convertible<typename
std::iterator_traits<_Iterator>::iterator_category,
std::input_iterator_tag>::value)> [with _InIter = char*]’:
/usr/local/include/c++/15.1.0/bits/basic_string.h:847:9: required by
substitution of ‘template<class _InputIterator, class> constexpr
std::__cxx11::basic_string<char>::basic_string(_InputIterator, _InputIterator,
const std::allocator<char>&) [with _InputIterator = char*;
<template-parameter-1-2> = <missing>]’
847 | typename = std::_RequireInputIter<_InputIterator>>
| ^~~~~~~~
/usr/local/include/c++/15.1.0/ext/string_conversions.h:119:14: required from
‘_String __gnu_cxx::__to_xstring(int (*)(_CharT*, std::size_t, const _CharT*,
__va_list_tag*), std::size_t, const _CharT*, ...) [with _String =
std::__cxx11::basic_string<char>; _CharT = char; std::size_t = long unsigned
int]’
119 | return _String(__s, __s + __len);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/include/c++/15.1.0/bits/basic_string.h:4697:43: required from here
4697 | return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
4698 | "%f", __val);
| ~~~~~~~~~~~~
/usr/local/include/c++/15.1.0/bits/stl_iterator_base_types.h:254:57: internal
compiler error: Segmentation fault
254 | input_iterator_tag>::value>;
| ^~~~~
0x22cc84f internal_error(char const*, ...)
/home/miuna/dev/gcc/gcc/diagnostic-global-context.cc:517
0xfe115f crash_signal
/home/miuna/dev/gcc/gcc/toplev.cc:322
0x7f8e4356032f ???
./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x78419a install_entity
/home/miuna/dev/gcc/gcc/cp/module.cc:8109
0x78419a decl_value
/home/miuna/dev/gcc/gcc/cp/module.cc:8657
0x8e8a94 tree_node
/home/miuna/dev/gcc/gcc/cp/module.cc:10062
0x8ed09c module_state::read_cluster(unsigned int)
/home/miuna/dev/gcc/gcc/cp/module.cc:16673
0x8edb67 module_state::load_section(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:20217
0x8edc1e module_state::lazy_load(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:21063
0x8e98d9 tree_node
/home/miuna/dev/gcc/gcc/cp/module.cc:10629
0x8ed02b module_state::read_cluster(unsigned int)
/home/miuna/dev/gcc/gcc/cp/module.cc:16528
0x8edb67 module_state::load_section(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:20217
0x8edc1e module_state::lazy_load(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:21063
0x8e98d9 tree_node
/home/miuna/dev/gcc/gcc/cp/module.cc:10629
0x8ed02b module_state::read_cluster(unsigned int)
/home/miuna/dev/gcc/gcc/cp/module.cc:16528
0x8edb67 module_state::load_section(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:20217
0x8edc1e module_state::lazy_load(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:21063
0x8e98d9 tree_node
/home/miuna/dev/gcc/gcc/cp/module.cc:10629
0x8ed02b module_state::read_cluster(unsigned int)
/home/miuna/dev/gcc/gcc/cp/module.cc:16528
0x8edb67 module_state::load_section(unsigned int, binding_slot*)
/home/miuna/dev/gcc/gcc/cp/module.cc:20217
Please submit a full bug report, with preprocessed source.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Preprocessed source stored into /tmp/ccCpZmZP.out file, please attach this to
your bugreport.
ninja: build stopped: subcommand failed.
