[Bug target/84014] [6/7/8 Regression] ICE in setup_min_max_allocno_live_range_point, at ira-build.c:2762

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84014

--- Comment #2 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
Thank you for reporting.  The problem occurs when only one subreg (obj) of
register (allocno) is used in a function.  I'll work on a patch.