diff options
Diffstat (limited to 'gcc/dce.c')
| -rw-r--r-- | gcc/dce.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/gcc/dce.c b/gcc/dce.c index ddd2cd0c145..3a83d7a7026 100644 --- a/gcc/dce.c +++ b/gcc/dce.c @@ -485,7 +485,6 @@ eliminate_dead_code () /* Map element (b,e) is nonzero if the block is control dependent on edge. "cdbte" abbreviates control dependent block to edge. */ control_dependent_block_to_edge_map cdbte; - sbitmap *postdominators; /* Element I is the immediate postdominator of block I. */ int *pdom; struct edge_list *el; @@ -504,17 +503,14 @@ eliminate_dead_code () compute_bb_for_insn (max_insn_uid); /* Compute control dependence. */ - postdominators = sbitmap_vector_alloc (n_basic_blocks, n_basic_blocks); - compute_flow_dominators (NULL, postdominators); pdom = (int *) xmalloc (n_basic_blocks * sizeof (int)); for (i = 0; i < n_basic_blocks; ++i) pdom[i] = INVALID_BLOCK; - compute_immediate_postdominators (pdom, postdominators); + calculate_dominance_info (pdom, NULL, CDI_POST_DOMINATORS); /* Assume there is a path from each node to the exit block. */ for (i = 0; i < n_basic_blocks; ++i) if (pdom[i] == INVALID_BLOCK) pdom[i] = EXIT_BLOCK; - sbitmap_vector_free (postdominators); el = create_edge_list(); find_all_control_dependences (el, pdom, cdbte); |