[Bug middle-end/91725] 275587[10 Regression] ICE in get_nonzero_bits starting with r275587

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91725

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 46864
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46864&action=edit
gcc10-pr91725.patch

Untested fix.