https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68336
--- Comment #1 from Yichao Yu <yyc1992 at gmail dot com> --- Ref clang bug report https://llvm.org/bugs/show_bug.cgi?id=25521
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68336
--- Comment #1 from Yichao Yu <yyc1992 at gmail dot com> --- Ref clang bug report https://llvm.org/bugs/show_bug.cgi?id=25521