[Bug target/107304] internal compiler error: in convert_move, at expr.cc:220 with -march=tigerlake

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107304

--- Comment #18 from H.J. Lu <hjl.tools at gmail dot com> ---
Can we update ix86_vector_mode_supported_p for cfun != NULL to issue an error
when a vector mode changes from valid to invalid?