https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96015
--- Comment #42 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Eric Botcazou <ebotca...@gcc.gnu.org>: https://gcc.gnu.org/g:b1d2ed3ad54378e8798dab27c841418f3f60cff2 commit r10-9354-gb1d2ed3ad54378e8798dab27c841418f3f60cff2 Author: Eric Botcazou <ebotca...@adacore.com> Date: Tue Feb 9 19:49:18 2021 +0100 Fix miscompilation of Python on HP-PA/Linux This is the miscompilation of Python at -O2 on HP-PA/Linux present on the mainline and 10 branch, caused by the presence of a call to __builtin_unreachable () in the middle of a heavily branchy code, which confuses the reorg pass. gcc/ PR rtl-optimization/96015 * reorg.c (skip_consecutive_labels): Minor comment tweaks. (relax_delay_slots): When deleting a jump to the next active instruction over a barrier, first delete the barrier if the jump is the only way to reach the target label.
