diff options
Diffstat (limited to 'gcc/dominance.c')
| -rw-r--r-- | gcc/dominance.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/gcc/dominance.c b/gcc/dominance.c index 3b8abdb28e8..a4558c03e44 100644 --- a/gcc/dominance.c +++ b/gcc/dominance.c @@ -326,10 +326,9 @@ calc_dfs_tree (di, reverse) They are reverse-unreachable. In the dom-case we disallow such nodes, but in post-dom we have to deal with them, so we simply include them in the DFS tree which actually becomes a forest. */ - int i; - for (i = n_basic_blocks - 1; i >= 0; i--) + basic_block b; + FOR_EACH_BB_REVERSE (b) { - basic_block b = BASIC_BLOCK (i); if (di->dfs_order[b->index]) continue; di->dfs_order[b->index] = di->dfsnum; @@ -604,17 +603,17 @@ calculate_dominance_info (idom, doms, reverse) if (idom) { - int i; - for (i = 0; i < n_basic_blocks; i++) + basic_block b; + + FOR_EACH_BB (b) { - basic_block b = BASIC_BLOCK (i); TBB d = di.dom[di.dfs_order[b->index]]; /* The old code didn't modify array elements of nodes having only itself as dominator (d==0) or only ENTRY_BLOCK (resp. EXIT_BLOCK) (d==1). */ if (d > 1) - idom[i] = di.dfs_to_bb[d]->index; + idom[b->index] = di.dfs_to_bb[d]->index; } } if (doms) |