diff options
Diffstat (limited to 'gcc/tree-into-ssa.c')
| -rw-r--r-- | gcc/tree-into-ssa.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/gcc/tree-into-ssa.c b/gcc/tree-into-ssa.c index 027a90b..4d5992e 100644 --- a/gcc/tree-into-ssa.c +++ b/gcc/tree-into-ssa.c @@ -608,7 +608,7 @@ set_livein_block (tree var, basic_block bb) /* If the use operand pointed to by OP_P needs to be renamed, then strip away any SSA_NAME wrapping the operand, set *UID_P to the underlying variable's uid, and return true. Otherwise return false. If the operand was an - SSA_NAME, change it to the stipped name. */ + SSA_NAME, change it to the stripped name. */ static bool prepare_use_operand_for_rename (use_operand_p op_p, size_t *uid_p) @@ -1822,9 +1822,8 @@ rewrite_ssa_into_ssa (bitmap names_to_rename) /* We no longer need this bitmap, clear and free it. */ sbitmap_free (mark_def_sites_global_data.kills); - for (i = 0; i < num_ssa_names; i++) - if (ssa_name (i)) - set_current_def (ssa_name (i), NULL_TREE); + for (i = 1; i < num_ssa_names; i++) + set_current_def (ssa_name (i), NULL_TREE); /* Insert PHI nodes at dominance frontiers of definition blocks. */ insert_phi_nodes (dfs, names_to_rename); @@ -1856,6 +1855,9 @@ rewrite_ssa_into_ssa (bitmap names_to_rename) /* Finalize the dominator walker. */ fini_walk_dominator_tree (&walk_data); + EXECUTE_IF_SET_IN_BITMAP (names_to_rename, 0, i, + release_ssa_name (ssa_name (i))); + sbitmap_free (snames_to_rename); timevar_pop (TV_TREE_SSA_REWRITE_BLOCKS); @@ -1874,16 +1876,16 @@ rewrite_ssa_into_ssa (bitmap names_to_rename) htab_delete (def_blocks); - for (i = 0; i < num_ssa_names; i++) + for (i = 1; i < num_ssa_names; i++) { name = ssa_name (i); - if (!name - || !SSA_NAME_AUX (name)) + if (!SSA_NAME_AUX (name)) continue; free (SSA_NAME_AUX (name)); SSA_NAME_AUX (name) = NULL; } + timevar_pop (TV_TREE_SSA_OTHER); } |