https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107720
Bug ID: 107720 Summary: [13 regression] New C++ library test cases (and many others) in r13-3936-g1d9454aba615ea fail Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: seurer at gcc dot gnu.org Target Milestone: --- g:1d9454aba615eadd0d85c93713dd848227345f67, r13-3936-g1d9454aba615ea This was on a make check of a simple (non-bootstrap) built compiler. I only see this on one system. Ubuntu 22.04.1 LTS gcc version 11.2.0 (Ubuntu 11.2.0-19ubuntu1) FAIL: 17_intro/headers/c++2020/all_attributes.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/all_no_exceptions.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/all_no_rtti.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/all_pedantic_errors.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/operator_names.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/stdc++.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/stdc++_multiple_inclusion.cc (test for excess errors) FAIL: std/format/arguments/args.cc (test for excess errors) FAIL: std/format/error.cc (test for excess errors) FAIL: std/format/formatter.cc (test for excess errors) FAIL: std/format/functions/format.cc (test for excess errors) FAIL: std/format/functions/format_to_n.cc (test for excess errors) FAIL: std/format/functions/size.cc (test for excess errors) FAIL: std/format/functions/vformat_to.cc (test for excess errors) FAIL: std/format/parse_ctx.cc (test for excess errors) FAIL: std/format/string.cc (test for excess errors) FAIL: std/format/string_neg.cc (test for excess errors) FAIL: 17_intro/headers/c++2020/all_no_exceptions.cc (test for excess errors) Excess errors: /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2566: error: '_Args_next_value_' was not declared in this scope; did you mean '_Arg_next_value_'? /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2903: error: expected ';' before 'else' /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2906: error: expected ';' before 'else' /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2999: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:3019: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2999: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:3019: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:1421: error: call of overloaded 'to_chars(char*&, char*&, __ieee128&, std::chars_format&, std::size_t&)' is ambiguous /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:1423: error: call of overloaded 'to_chars(char*&, char*&, __ieee128&, std::chars_format&)' is ambiguous /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:1425: error: call of overloaded 'to_chars(char*&, char*&, __ieee128&)' is ambiguous /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:1421: error: call of overloaded 'to_chars(char*&, char*&, __ieee128&, std::chars_format&, std::size_t&)' is ambiguous /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:1423: error: call of overloaded 'to_chars(char*&, char*&, __ieee128&, std::chars_format&)' is ambiguous /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:1425: error: call of overloaded 'to_chars(char*&, char*&, __ieee128&)' is ambiguous /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2999: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:3019: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:2999: error: duplicate case value /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/format:3019: error: duplicate case value commit 1d9454aba615eadd0d85c93713dd848227345f67 (HEAD, refs/bisect/bad) Author: Jonathan Wakely <jwak...@redhat.com> Date: Tue Oct 18 21:20:06 2022 +0100 libstdc++: Implement C++20 <format> [PR104166]