> + /* When there's a call that might not return the last iteration
> + is possibly partial. This matches what we check in invariant
> + motion.
> + ??? For the call argument evaluation it would be still OK. */
> + if (!may_have_exited
> + && is_gimple_call (stmt)
> + && gimple_has_side_effects (stmt))
> + may_have_exited = true;
I think you are missing here non-call EH, volatile asms and traps.
We have stmt_may_terminate_function_p which tests there.
Honza
> +
> + infer_loop_bounds_from_array (loop, stmt,
> + reliable && !may_have_exited);
>
> - if (reliable)
> + if (reliable && !may_have_exited)
> {
> infer_loop_bounds_from_signedness (loop, stmt);
> infer_loop_bounds_from_pointer_arith (loop, stmt);
> }
> }
> -
> }
> }
>
> @@ -4832,7 +4855,7 @@ estimate_numbers_of_iterations (class loop *loop)
> diagnose those loops with -Waggressive-loop-optimizations. */
> number_of_latch_executions (loop);
>
> - basic_block *body = get_loop_body (loop);
> + basic_block *body = get_loop_body_in_rpo (cfun, loop);
> auto_vec<edge> exits = get_loop_exit_edges (loop, body);
> likely_exit = single_likely_exit (loop, exits);
> FOR_EACH_VEC_ELT (exits, i, ex)
> --
> 2.35.3
