https://gcc.gnu.org/PR112568
https://gcc.gnu.org/PR112572
https://bugs.gentoo.org/917496
https://bugs.gentoo.org/917486
--- a/gcc/compare-elim.cc
+++ b/gcc/compare-elim.cc
@@ -908,6 +908,7 @@ static unsigned int
 execute_compare_elim_after_reload (void)
 {
   df_set_flags (DF_LR_RUN_DCE);
+  df_note_add_problem ();
   df_analyze ();

   gcc_checking_assert (!all_compares.exists ());