diff options
Diffstat (limited to 'gcc/cfgloop.h')
| -rw-r--r-- | gcc/cfgloop.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gcc/cfgloop.h b/gcc/cfgloop.h index 0ff44de67d3..510bc10bd4a 100644 --- a/gcc/cfgloop.h +++ b/gcc/cfgloop.h @@ -143,11 +143,13 @@ struct GTY ((chain_next ("%h.next"))) loop { computes and caches the computed information in this field. */ tree nb_iterations; - /* An integer guaranteed to bound the number of iterations of the loop - from above. */ + /* An integer guaranteed to be greater or equal to nb_iterations. Only + valid if any_upper_bound is true. */ double_int nb_iterations_upper_bound; - /* An integer giving the expected number of iterations of the loop. */ + /* An integer giving an estimate on nb_iterations. Unlike + nb_iterations_upper_bound, there is no guarantee that it is at least + nb_iterations. */ double_int nb_iterations_estimate; bool any_upper_bound; @@ -278,7 +280,9 @@ extern rtx doloop_condition_get (rtx); void estimate_numbers_of_iterations_loop (struct loop *, bool); HOST_WIDE_INT estimated_loop_iterations_int (struct loop *, bool); +HOST_WIDE_INT max_stmt_executions_int (struct loop *, bool); bool estimated_loop_iterations (struct loop *, bool, double_int *); +bool max_stmt_executions (struct loop *, bool, double_int *); /* Loop manipulation. */ extern bool can_duplicate_loop_p (const struct loop *loop); |