[Bug target/126959] -march=znver4 prefers load from memory for mask register

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126959

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 65373
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65373&action=edit
A patch