[Bug rtl-optimization/83398] [8 Regression] ICE: in try_ready, at haifa-sched.c:7524 with -O2 -fsched2-use-superblocks -g

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83398

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> ---
Created attachment 42871
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42871&action=edit
reduced testcase