[Bug target/88838] [SVE] Use 32-bit WHILELO in LP64 mode

[kugan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88838

--- Comment #5 from kugan at gcc dot gnu.org ---
Created attachment 46000
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46000&action=edit
RFC patch

RFC patch fixes this for review.