https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104777
Bug ID: 104777
Summary: gcc crashes while compiling a custom coroutine library
sample
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: janezz55 at gmail dot com
Target Milestone: ---
The code sample is here https://github.com/user1095108/cr. gcc crashes only if
the optimization level is higher than 2.
g++ -I.. -Ofast -no-pie -std=c++20 loop.cpp -o l
clang compiles everything without issue.
./lduring RTL pass: sched2
In file included from /usr/include/c++/11.2.0/functional:59,
from /usr/include/c++/11.2.0/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11.2.0/algorithm:74,
from loop.hpp:5,
from loop.cpp:3:
/usr/include/c++/11.2.0/bits/std_function.h: In static member function 'static
_Res std::_Function_handler<_Res(_ArgTypes ...), _Functor>::_M_invoke(const
std::_Any_data&, _ArgTypes&& ...) [with _Res = void; _Functor =
main()::<lambda()>; _ArgTypes = {}]':
/usr/include/c++/11.2.0/bits/std_function.h:293:7: internal compiler error: in
move_insn, at haifa-sched.c:5471
293 | }
| ^
0xe4c988 internal_error(char const*, ...)
???:0
0xe42d02 fancy_abort(char const*, int, char const*)
???:0
0x13ee792 schedule_block(basic_block_def**, void*)
???:0
0x13da4f2 schedule_insns()
???:0
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with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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