https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85458
--- Comment #6 from John David Anglin <danglin at gcc dot gnu.org> --- The patch was approved by Jeff Law. The ICE indicates that there was a negative priority generated in testcase on ia64. Negative priorities present a problem for targets that define TARGET_SCHED_ADJUST_PRIORITY. For example, the ">>" operator can't be used to reduce the priority if the current priority is negative.
