diff options
Diffstat (limited to 'gcc/tree-vect-analyze.c')
| -rw-r--r-- | gcc/tree-vect-analyze.c | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/gcc/tree-vect-analyze.c b/gcc/tree-vect-analyze.c index fd26c90..4736f1b 100644 --- a/gcc/tree-vect-analyze.c +++ b/gcc/tree-vect-analyze.c @@ -462,7 +462,7 @@ vect_analyze_operations (loop_vec_info loop_vinfo) "not vectorized: can't create epilog loop 1."); return false; } - if (!slpeel_can_duplicate_loop_p (loop, loop->exit_edges[0])) + if (!slpeel_can_duplicate_loop_p (loop, loop->single_exit)) { if (vect_print_dump_info (REPORT_UNVECTORIZED_LOOPS, LOOP_LOC (loop_vinfo))) @@ -2265,7 +2265,6 @@ vect_analyze_loop_form (struct loop *loop) loop_vec_info loop_vinfo; tree loop_cond; tree number_of_iterations = NULL; - bool rescan = false; LOC loop_loc; loop_loc = find_loop_location (loop); @@ -2282,8 +2281,7 @@ vect_analyze_loop_form (struct loop *loop) if (!loop->single_exit || loop->num_nodes != 2 - || EDGE_COUNT (loop->header->preds) != 2 - || loop->num_entries != 1) + || EDGE_COUNT (loop->header->preds) != 2) { if (vect_print_dump_info (REPORT_BAD_FORM_LOOPS, loop_loc)) { @@ -2293,8 +2291,6 @@ vect_analyze_loop_form (struct loop *loop) fprintf (vect_dump, "not vectorized: too many BBs in loop."); else if (EDGE_COUNT (loop->header->preds) != 2) fprintf (vect_dump, "not vectorized: too many incoming edges."); - else if (loop->num_entries != 1) - fprintf (vect_dump, "not vectorized: too many entries."); } return NULL; @@ -2311,16 +2307,6 @@ vect_analyze_loop_form (struct loop *loop) return NULL; } - /* Make sure we have a preheader basic block. */ - if (!loop->pre_header || EDGE_COUNT (loop->pre_header->succs) != 1) - { - edge e = loop_preheader_edge (loop); - loop_split_edge_with (e, NULL); - if (vect_print_dump_info (REPORT_DETAILS, loop_loc)) - fprintf (vect_dump, "split preheader edge."); - rescan = true; - } - /* Make sure there exists a single-predecessor exit bb: */ if (EDGE_COUNT (loop->single_exit->dest->preds) != 1) { @@ -2330,7 +2316,6 @@ vect_analyze_loop_form (struct loop *loop) loop_split_edge_with (e, NULL); if (vect_print_dump_info (REPORT_DETAILS, loop_loc)) fprintf (vect_dump, "split exit edge."); - rescan = true; } else { @@ -2339,13 +2324,6 @@ vect_analyze_loop_form (struct loop *loop) return NULL; } } - - if (rescan) - { - flow_loop_scan (loop, LOOP_ALL); - /* Flow loop scan does not update loop->single_exit field. */ - loop->single_exit = loop->exit_edges[0]; - } if (empty_block_p (loop->header)) { |