https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67284
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Looks like
--- a/gcc/gimple-ssa-isolate-paths.c
+++ b/gcc/gimple-ssa-isolate-paths.c
@@ -115,7 +115,8 @@ insert_trap (gimple_stmt_iterator *si_p, tree op)
else
gsi_insert_before (si_p, seq, GSI_NEW_STMT);
- split_block (gimple_bb (new_stmt), new_stmt);
+ edge e = split_block (gimple_bb (new_stmt), new_stmt);
+ remove_edge (e);
*si_p = gsi_for_stmt (stmt);
}
fixes it.
