https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96819
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- Created attachment 49141 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49141&action=edit Another preprocessed source Using the attached file I get some other errors before the ICE. The attached one gives no errors before the ICE. Created on Fedora 32 with libc++-devel installed and using the following options: -std=c++17 -c -nostdinc -I /usr/include/c++/v1/ -I /usr/include -I $GCC_TRUNK_PREFIX/lib/gcc/x86_64-pc-linux-gnu/11.0.0/include/ -save-temps