https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87957
--- Comment #24 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > I am not sure how to get command line for debugger but I assume that it does > not simplify type name because type_with_linkage_p returns true which is > wrong for Ada types (it tests whether it is C++ ODR type). Run the gnat.dg testsuite and copy-and-paste the command line from the log file without the -q option in the middle. You'll get: /home/eric/build/gcc/native/gcc/xgcc -c -I/home/eric/svn/gcc/gcc/testsuite/gnat.dg/ -B/home/eric/build/gcc/native/gcc --RTS=/home/eric/build/gcc/native/x86_64-suse-linux/./libada -fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers -fdiagnostics-color=never -gnatws -flto -lm -I- /home/eric/svn/gcc/gcc/testsuite/gnat.dg/lto8.adb +===========================GNAT BUG DETECTED==============================+ | 9.0.0 20190104 (experimental) [trunk revision 267574] (x86_64-suse-linux) GCC error:| | in fld_incomplete_type_of, at tree.c:5348 |