Here are the results of running the testsuite on m68k-linux: http://gcc.gnu.org/ml/gcc-testresults/2019-11/msg00908.html
This is a list of regressions: g++.old-deja/g++.other/dyncast1.C -std=c++14 execution test g++.old-deja/g++.other/dyncast1.C -std=c++17 execution test g++.old-deja/g++.other/dyncast1.C -std=c++2a execution test g++.old-deja/g++.other/dyncast1.C -std=c++98 execution test g++.old-deja/g++.other/dyncast6.C -std=gnu++14 execution test g++.old-deja/g++.other/dyncast6.C -std=gnu++17 execution test g++.old-deja/g++.other/dyncast6.C -std=gnu++2a execution test g++.old-deja/g++.other/dyncast6.C -std=gnu++98 execution test g++.old-deja/g++.other/rttid3.C -std=gnu++14 execution test g++.old-deja/g++.other/rttid3.C -std=gnu++17 execution test g++.old-deja/g++.other/rttid3.C -std=gnu++2a execution test g++.old-deja/g++.other/rttid3.C -std=gnu++98 execution test g++.old-deja/g++.robertl/eb46.C -std=c++14 execution test g++.old-deja/g++.robertl/eb46.C -std=c++17 execution test g++.old-deja/g++.robertl/eb46.C -std=c++2a execution test g++.old-deja/g++.robertl/eb46.C -std=c++98 execution test 18_support/nested_exception/rethrow_if_nested.cc execution test 20_util/function_objects/comparisons_pointer.cc execution test 21_strings/basic_string/inserters_extractors/char/8.cc execution test 22_locale/num_get/get/char/16.cc execution test 24_iterators/istream_iterator/1.cc execution test 25_algorithms/copy_n/50119.cc execution test 27_io/basic_istream/extractors_arithmetic/char/01.cc execution test 27_io/basic_istream/extractors_arithmetic/char/02.cc execution test 27_io/basic_istream/extractors_arithmetic/char/03.cc execution test 27_io/basic_istream/extractors_arithmetic/char/10.cc execution test 27_io/basic_istream/extractors_arithmetic/char/11.cc execution test 27_io/basic_istream/extractors_arithmetic/char/13.cc execution test 27_io/basic_istream/extractors_arithmetic/char/dr696.cc execution test 27_io/basic_istream/seekg/char/8348-1.cc execution test 27_io/basic_istream/seekg/char/8348-2.cc execution test 27_io/basic_istream/tellg/char/8348.cc execution test 27_io/basic_istringstream/assign/1.cc execution test 27_io/basic_istringstream/cons/move.cc execution test 27_io/basic_istringstream/str/char/1.cc execution test 27_io/basic_stringbuf/seekoff/char/1.cc execution test 27_io/basic_stringbuf/seekoff/wchar_t/1.cc execution test 27_io/basic_stringbuf/seekoff/wchar_t/2.cc execution test 27_io/basic_stringstream/assign/1.cc execution test 27_io/filesystem/path/concat/path.cc execution test 27_io/manipulators/standard/char/quoted.cc execution test 27_io/rvalue_streams.cc execution test 28_regex/algorithms/regex_match/awk/cstring_01.cc execution test 28_regex/algorithms/regex_match/ecma/char/57173.cc execution test 28_regex/algorithms/regex_match/ecma/char/68863.cc execution test 28_regex/algorithms/regex_match/ecma/char/backref.cc execution test 28_regex/algorithms/regex_match/ecma/char/emptygroup.cc execution test 28_regex/algorithms/regex_match/ecma/char/hex.cc execution test 28_regex/algorithms/regex_match/extended/cstring_range.cc execution test 28_regex/algorithms/regex_replace/char/basic_replace.cc execution test 28_regex/algorithms/regex_replace/char/dr2213.cc execution test 28_regex/basic_regex/multiple_quantifiers.cc execution test 28_regex/match_results/format.cc execution test 28_regex/regression.cc execution test 28_regex/traits/char/value.cc execution test backward/strstream_move.cc execution test ext/random/k_distribution/operators/serialize.cc execution test ext/random/nakagami_distribution/operators/serialize.cc execution test ext/random/normal_mv_distribution/operators/serialize.cc execution test ext/random/rice_distribution/operators/serialize.cc execution test ext/random/uniform_inside_sphere_distribution/operators/serialize.cc execution test tr1/5_numerical_facilities/random/discard_block/operators/serialize.cc execution test tr1/7_regular_expressions/regex_traits/char/value.cc execution test tr1/7_regular_expressions/regex_traits/wchar_t/value.cc execution test Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."