https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70909
--- Comment #13 from Matt Godbolt <matt at godbolt dot org> --- We will try and get a small repro case. It comes from open source software: it's from the compiling_tests.cpp program in trompeloeil (https://github.com/rollbear/trompeloeil/blob/master/compiling_tests.cpp. The trompeloeil author is going to try and make a cut-down case.