diff options
Diffstat (limited to 'gcc/tree-scalar-evolution.c')
| -rw-r--r-- | gcc/tree-scalar-evolution.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c index d56b672274b..79eb3a6db21 100644 --- a/gcc/tree-scalar-evolution.c +++ b/gcc/tree-scalar-evolution.c @@ -1001,18 +1001,17 @@ tree get_loop_exit_condition (struct loop *loop) { tree res = NULL_TREE; + edge exit_edge = loop->single_exit; + if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "(get_loop_exit_condition \n "); - if (loop->exit_edges) + if (exit_edge) { - edge exit_edge; tree expr; - exit_edge = loop->exit_edges[0]; expr = last_stmt (exit_edge->src); - if (analyzable_condition (expr)) res = expr; } @@ -1039,8 +1038,7 @@ get_exit_conditions_rec (struct loop *loop, get_exit_conditions_rec (loop->inner, exit_conditions); get_exit_conditions_rec (loop->next, exit_conditions); - flow_loop_scan (loop, LOOP_EXIT_EDGES); - if (loop->num_exits == 1) + if (loop->single_exit) { tree loop_condition = get_loop_exit_condition (loop); @@ -2185,9 +2183,9 @@ number_of_iterations_in_loop (struct loop *loop) if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "(number_of_iterations_in_loop\n"); - if (!loop->exit_edges) + exit = loop->single_exit; + if (!exit) goto end; - exit = loop->exit_edges[0]; if (!number_of_iterations_exit (loop, exit, &niter_desc)) goto end; @@ -2458,10 +2456,7 @@ scev_initialize (struct loops *loops) for (i = 1; i < loops->num; i++) if (loops->parray[i]) - { - flow_loop_scan (loops->parray[i], LOOP_EXIT_EDGES); - loops->parray[i]->nb_iterations = NULL_TREE; - } + loops->parray[i]->nb_iterations = NULL_TREE; } /* Cleans up the information cached by the scalar evolutions analysis. */ |