[Bug target/96262] [11 Regression] ICE: in decompose, at rtl.h:2280 with -O -mavx512bw since r11-1411-gc7199fb6e694d1a0

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96262

--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
a patch is posted at
https://gcc.gnu.org/pipermail/gcc-patches/2020-July/550427.html