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| author | Trevor Saunders <tsaunders@mozilla.com> | 2014-01-12 12:07:43 -0500 |
|---|---|---|
| committer | Trevor Saunders <tsaunders@mozilla.com> | 2014-02-18 22:44:40 -0500 |
| commit | 1d5764a33e04b45df067df566f8d3a974030946a (patch) | |
| tree | e46e4075ec032cd0588ec54c5486585b29747f68 | |
| parent | 9119f1d06ac3c74f39d2fb7491ae97449be9e186 (diff) | |
| download | gcc-1d5764a33e04b45df067df566f8d3a974030946a.tar.gz | |
remove some bitmap indirection in tree-ssa-uninit.c
| -rw-r--r-- | gcc/tree-ssa-uninit.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/gcc/tree-ssa-uninit.c b/gcc/tree-ssa-uninit.c index e97c1b5997d..6a8715690b4 100644 --- a/gcc/tree-ssa-uninit.c +++ b/gcc/tree-ssa-uninit.c @@ -988,7 +988,7 @@ prune_uninit_phi_opnds_in_unrealizable_paths (gimple phi, tree boundary_cst, enum tree_code cmp_code, pointer_set_t *visited_phis, - bitmap *visited_flag_phis) + bitmap visited_flag_phis) { unsigned i; @@ -1023,15 +1023,11 @@ prune_uninit_phi_opnds_in_unrealizable_paths (gimple phi, if (gimple_bb (phi_arg_def) != gimple_bb (flag_arg_def)) return false; - if (!*visited_flag_phis) - *visited_flag_phis = BITMAP_ALLOC (NULL); - - if ((*visited_flag_phis)->bit - (SSA_NAME_VERSION (gimple_phi_result (flag_arg_def)))) + int version = SSA_NAME_VERSION (gimple_phi_result (flag_arg_def)); + if (visited_flag_phis->bit (version)) return false; - (*visited_flag_phis)->set_bit - (SSA_NAME_VERSION (gimple_phi_result (flag_arg_def))); + visited_flag_phis->set_bit (version); /* Now recursively prune the uninitialized phi args. */ uninit_opnds_arg_phi = compute_uninit_opnds_pos (phi_arg_def); @@ -1040,7 +1036,7 @@ prune_uninit_phi_opnds_in_unrealizable_paths (gimple phi, boundary_cst, cmp_code, visited_phis, visited_flag_phis)) return false; - (*visited_flag_phis)->clear_bit + visited_flag_phis->clear_bit (SSA_NAME_VERSION (gimple_phi_result (flag_arg_def))); continue; } @@ -1166,7 +1162,6 @@ use_pred_not_overlap_with_undef_path_pred (pred_chain_union preds, bool swap_cond = false; bool invert = false; pred_chain the_pred_chain = vNULL; - bitmap visited_flag_phis = NULL; bool all_pruned = false; size_t num_preds = preds.length (); @@ -1228,6 +1223,7 @@ use_pred_not_overlap_with_undef_path_pred (pred_chain_union preds, if (cmp_code == ERROR_MARK) return false; + bitmap_head visited_flag_phis; all_pruned = prune_uninit_phi_opnds_in_unrealizable_paths (phi, uninit_opnds, flag_def, @@ -1236,9 +1232,6 @@ use_pred_not_overlap_with_undef_path_pred (pred_chain_union preds, visited_phis, &visited_flag_phis); - if (visited_flag_phis) - BITMAP_FREE (visited_flag_phis); - return all_pruned; } |