diff options
Diffstat (limited to 'gcc/bb-reorder.c')
| -rw-r--r-- | gcc/bb-reorder.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/gcc/bb-reorder.c b/gcc/bb-reorder.c index 0bc2f913122..a94c9e4e468 100644 --- a/gcc/bb-reorder.c +++ b/gcc/bb-reorder.c @@ -385,18 +385,16 @@ rotate_loop (edge back_edge, struct trace *trace, int trace_n) prev_bb->rbi->next = best_bb->rbi->next; /* Try to get rid of uncond jump to cond jump. */ - if (EDGE_COUNT (prev_bb->succs) == 1) + if (single_succ_p (prev_bb)) { - basic_block header = EDGE_SUCC (prev_bb, 0)->dest; + basic_block header = single_succ (prev_bb); /* Duplicate HEADER if it is a small block containing cond jump in the end. */ if (any_condjump_p (BB_END (header)) && copy_bb_p (header, 0) && !find_reg_note (BB_END (header), REG_CROSSING_JUMP, NULL_RTX)) - { - copy_bb (header, EDGE_SUCC (prev_bb, 0), prev_bb, trace_n); - } + copy_bb (header, single_succ_edge (prev_bb), prev_bb, trace_n); } } } @@ -655,7 +653,7 @@ find_traces_1_round (int branch_th, int exec_th, gcov_type count_th, { /* The loop has less than 4 iterations. */ - if (EDGE_COUNT (bb->succs) == 1 + if (single_succ_p (bb) && copy_bb_p (best_edge->dest, !optimize_size)) { bb = copy_bb (best_edge->dest, best_edge, bb, @@ -695,12 +693,13 @@ find_traces_1_round (int branch_th, int exec_th, gcov_type count_th, && (e->flags & EDGE_CAN_FALLTHRU) && !(e->flags & EDGE_COMPLEX) && !e->dest->rbi->visited - && EDGE_COUNT (e->dest->preds) == 1 + && single_pred_p (e->dest) && !(e->flags & EDGE_CROSSING) - && EDGE_COUNT (e->dest->succs) == 1 - && (EDGE_SUCC (e->dest, 0)->flags & EDGE_CAN_FALLTHRU) - && !(EDGE_SUCC (e->dest, 0)->flags & EDGE_COMPLEX) - && EDGE_SUCC (e->dest, 0)->dest == best_edge->dest + && single_succ_p (e->dest) == 1 + && (single_succ_edge (e->dest)->flags + & EDGE_CAN_FALLTHRU) + && !(single_succ_edge (e->dest)->flags & EDGE_COMPLEX) + && single_succ (e->dest) == best_edge->dest && 2 * e->dest->frequency >= EDGE_FREQUENCY (best_edge)) { best_edge = e; @@ -1391,7 +1390,7 @@ add_labels_and_missing_jumps (edge *crossing_edges, int n_crossing_edges) /* bb just falls through. */ { /* make sure there's only one successor */ - gcc_assert (EDGE_COUNT (src->succs) == 1); + gcc_assert (single_succ_p (src)); /* Find label in dest block. */ label = block_label (dest); @@ -1533,7 +1532,7 @@ fix_up_fall_thru_edges (void) partition as bb it's falling through from. */ BB_COPY_PARTITION (new_bb, cur_bb); - EDGE_SUCC (new_bb, 0)->flags |= EDGE_CROSSING; + single_succ_edge (new_bb)->flags |= EDGE_CROSSING; } /* Add barrier after new jump */ @@ -2085,17 +2084,17 @@ duplicate_computed_gotos (void) /* BB must have one outgoing edge. That edge must not lead to the exit block or the next block. The destination must have more than one predecessor. */ - if (EDGE_COUNT(bb->succs) != 1 - || EDGE_SUCC(bb,0)->dest == EXIT_BLOCK_PTR - || EDGE_SUCC(bb,0)->dest == bb->next_bb - || EDGE_COUNT(EDGE_SUCC(bb,0)->dest->preds) <= 1) + if (!single_succ_p (bb) + || single_succ (bb) == EXIT_BLOCK_PTR + || single_succ (bb) == bb->next_bb + || single_pred_p (single_succ (bb))) continue; /* The successor block has to be a duplication candidate. */ - if (!bitmap_bit_p (candidates, EDGE_SUCC(bb,0)->dest->index)) + if (!bitmap_bit_p (candidates, single_succ (bb)->index)) continue; - new_bb = duplicate_block (EDGE_SUCC(bb,0)->dest, EDGE_SUCC(bb,0)); + new_bb = duplicate_block (single_succ (bb), single_succ_edge (bb)); new_bb->rbi->next = bb->rbi->next; bb->rbi->next = new_bb; new_bb->rbi->visited = 1; |