diff options
Diffstat (limited to 'gcc/cfgloop.c')
| -rw-r--r-- | gcc/cfgloop.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/gcc/cfgloop.c b/gcc/cfgloop.c index ff89ef2..f480d9a 100644 --- a/gcc/cfgloop.c +++ b/gcc/cfgloop.c @@ -50,16 +50,17 @@ flow_loops_cfg_dump (loops, file) FILE *file; { int i; + basic_block bb; if (! loops->num || ! file || ! loops->cfg.dom) return; - for (i = 0; i < n_basic_blocks; i++) + FOR_EACH_BB (bb) { edge succ; - fprintf (file, ";; %d succs { ", i); - for (succ = BASIC_BLOCK (i)->succ; succ; succ = succ->succ_next) + fprintf (file, ";; %d succs { ", bb->index); + for (succ = bb->succ; succ; succ = succ->succ_next) fprintf (file, "%d ", succ->dest->index); flow_nodes_print ("} dom", loops->cfg.dom[i], file); } @@ -643,6 +644,7 @@ flow_loops_find (loops, flags) sbitmap *dom; int *dfs_order; int *rc_order; + basic_block header; /* This function cannot be repeatedly called with different flags to build up the loop information. The loop tree @@ -667,11 +669,8 @@ flow_loops_find (loops, flags) /* Count the number of loop edges (back edges). This should be the same as the number of natural loops. */ num_loops = 0; - for (b = 0; b < n_basic_blocks; b++) + FOR_EACH_BB (header) { - basic_block header; - - header = BASIC_BLOCK (b); header->loop_depth = 0; for (e = header->pred; e; e = e->pred_next) @@ -684,10 +683,7 @@ flow_loops_find (loops, flags) loop. It also has single back edge to the header from a latch node. Note that multiple natural loops may share the same header. */ - if (b != header->index) - abort (); - - if (latch != ENTRY_BLOCK_PTR && TEST_BIT (dom[latch->index], b)) + if (latch != ENTRY_BLOCK_PTR && TEST_BIT (dom[latch->index], header->index)) num_loops++; } } |