https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96137
--- Comment #1 from Haoxin Tu <haoxintu at gmail dot com> --- Also, I want to know are those cases (invalid code but makes GCC hang on) worth reporting? If those cases can help improve the GCC FE or its performance, I will continue to file more reports. Otherwise, I will just stop doing that. Thanks