Internal compiler error, when use std::println

[nekoyama32767]

Description / Steps to reproduce the issue

When try to compile source code using std::println with mingw-w64-x86_64-gcc 14.2.0-1
gcc/g++ version is as flowing

$ g++ --version
g++.exe (Rev1, Built by MSYS2 project) 14.2.0
Copyright (C) 2024 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.

println.cpp

#include <print>

int main()
{
    auto i = 0ull;
    std::println("{}", i);
    return 0;
}

Options are -O3 -std=c++23 -lstdc++exp -freport-bug

g++ println.cpp -O3 -std=c++23 -lstdc++exp -freport-bug

Flowing ICE will be shown, not every time, but very often

during RTL pass: cprop
In file included from D:/msys64/mingw64/include/c++/14.2.0/format:58,
                 from D:/msys64/mingw64/include/c++/14.2.0/print:41,
                 from println.cpp:1:
D:/msys64/mingw64/include/c++/14.2.0/bits/unicode.h: In member function 'constexpr std::__unicode::__v15_1_0::_Grapheme_cluster_view<_View>::_Iterator& std::__unicode::__v15_1_0::_Grapheme_cluster_view<_View>::_Iterator::operator++() [with _View = std::basic_string_view<char>]':
D:/msys64/mingw64/include/c++/14.2.0/bits/unicode.h:801:9: internal compiler error: in try_forward_edges, at cfgcleanup.cc:580
  801 |         }
      |         ^
Please submit a full bug report, with preprocessed source.
See <https://github.com/msys2/MINGW-packages/issues> for instructions.
g++.exe: fatal error: cannot execute 'D:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/cc1plus.exe': open temporary output file
compilation terminated.

during RTL pass: into_cfglayout
In file included from D:/msys64/mingw64/include/c++/14.2.0/print:41,
                 from println.cpp:1:
D:/msys64/mingw64/include/c++/14.2.0/format: In member function 'decltype(auto) std::basic_format_arg<_Context>::_M_visit(_Visitor&&, std::__format::_Arg_t) [with _Visitor = std::__format::_Formatting_scanner<std::__format::_Sink_iter<char>, char>::_M_format_arg(std::size_t)::<lambda(auto:36&)>; _Context = std::basic_format_context<std::__format::_Sink_iter<char>, char>]':
D:/msys64/mingw64/include/c++/14.2.0/format:3560:9: internal compiler error: in try_forward_edges, at cfgcleanup.cc:580
 3560 |         }
      |         ^
Please submit a full bug report, with preprocessed source.
See <https://github.com/msys2/MINGW-packages/issues> for instructions.
The bug is not reproducible, so it is likely a hardware or OS problem.

Expected behavior

No ICE will be shown

Actual behavior

ICE will be shown

during RTL pass: cprop
In file included from D:/msys64/mingw64/include/c++/14.2.0/format:58,
                 from D:/msys64/mingw64/include/c++/14.2.0/print:41,
                 from println.cpp:1:
D:/msys64/mingw64/include/c++/14.2.0/bits/unicode.h: In member function 'constexpr std::__unicode::__v15_1_0::_Grapheme_cluster_view<_View>::_Iterator& std::__unicode::__v15_1_0::_Grapheme_cluster_view<_View>::_Iterator::operator++() [with _View = std::basic_string_view<char>]':
D:/msys64/mingw64/include/c++/14.2.0/bits/unicode.h:801:9: internal compiler error: in try_forward_edges, at cfgcleanup.cc:580
  801 |         }
      |         ^
Please submit a full bug report, with preprocessed source.
See <https://github.com/msys2/MINGW-packages/issues> for instructions.
g++.exe: fatal error: cannot execute 'D:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/14.2.0/cc1plus.exe': open temporary output file
compilation terminated.

during RTL pass: into_cfglayout
In file included from D:/msys64/mingw64/include/c++/14.2.0/print:41,
                 from println.cpp:1:
D:/msys64/mingw64/include/c++/14.2.0/format: In member function 'decltype(auto) std::basic_format_arg<_Context>::_M_visit(_Visitor&&, std::__format::_Arg_t) [with _Visitor = std::__format::_Formatting_scanner<std::__format::_Sink_iter<char>, char>::_M_format_arg(std::size_t)::<lambda(auto:36&)>; _Context = std::basic_format_context<std::__format::_Sink_iter<char>, char>]':
D:/msys64/mingw64/include/c++/14.2.0/format:3560:9: internal compiler error: in try_forward_edges, at cfgcleanup.cc:580
 3560 |         }
      |         ^
Please submit a full bug report, with preprocessed source.
See <https://github.com/msys2/MINGW-packages/issues> for instructions.
The bug is not reproducible, so it is likely a hardware or OS problem.

Verification

• I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MINGW64_NT-10.0-22631

MINGW environments affected

• MINGW64
• MINGW32
• UCRT64
• CLANG64
• CLANGARM64

Are you willing to submit a PR?

No response