[Bug sanitizer/81262] [8 Regression] verify_flow_info failed for asmgoto test-case with -fsanitize=undefined

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81262

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 41654
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41654&action=edit
gcc8-pr81262.patch

Untested fix.