https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103462
--- Comment #6 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Hongtao.liu from comment #5)
> Created attachment 52004 [details]
> Testes patch, wait for gcc13.
Add error in the patch to see if there's any change in gcc which can be
optimized, it turns out there're several places.
gcc/final.c:4363:24: error: Got bitwise induction optimization
4363 | virtual unsigned int execute (function *) { return
rest_of_handle_final (); }
gcc/ira-lives.c:1221:1: error: Got bitwise induction optimization
1221 | process_bb_node_lives (ira_loop_tree_node_t loop_tree_node)
gcc/lra-lives.c:653:1: error: Got bitwise induction optimization
653 | process_bb_lives (basic_block bb, int &curr_point, bool dead_insn_p)
gcc/lra-assigns.c:478:1: error: Got bitwise induction optimization
478 | find_hard_regno_for_1 (int regno, int *cost, int try_only_hard_regno,
gcc/ira.c:1703:1: error: Got bitwise induction optimization
1703 | ira_init (void)
