[Bug target/98348] [10/11 Regression] GCC 10.2 AVX512 Mask regression from GCC 9

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98348

--- Comment #18 from Hongtao.liu <crazylht at gmail dot com> ---
Fix on trunk sofar, as jakub suggests, not back port to gcc10.