https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110185
--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> --- Created attachment 55290 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55290&action=edit spaceship-synth13.ii Hm, that attachment was for a test that checked for errors. Here's one for a tests that should compile without errors, /testsuite/g++.dg/cpp2a/spaceship-synth13.C. Repeat with cc1plus -fpreprocessed spaceship-synth13.ii -melf -quiet -dumpbase spaceship-synth13.C -dumpbase-ext .C -pedantic-errors -Wno-long-long -std=c++20 -version -fdiagnostics-color=never -fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers -fdiagnostics-urls=never -fdiagnostics-path-format=separate-events -fmessage-length=0 -o spaceship-synth13.s