[Bug sanitizer/80403] UBSAN: compile time crash with "type mismatch in binary expression" message in / and % expr

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80403

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 41183
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41183&action=edit
gcc7-pr80403.patch

Untested fix.