https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91420
--- Comment #1 from Bin Meng <bmeng.cn at gmail dot com> --- Created attachment 46701 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46701&action=edit test log of "riscv64-unknown-linux-gnu-g++ -v -save-temps -O2 riscv_cpp_test.c"
