tree-ssa-operands.h (create_ssa_artificial_load_stmt): Rename from create_ssa_artficial_load_stmt.

	* tree-ssa-operands.h (create_ssa_artificial_load_stmt):
	Rename from create_ssa_artficial_load_stmt.  Update all users.
	* tree-into-ssa.c (register_new_def): Make static.
	* tree.c (is_global_var): Handle SSA_NAMEs.
	* tree.h (SSA_NAME_IS_DEFAULT_DEF): Define.  Update all users
	that used to call gimple_default_def.
	* tree-ssa-operands.c (push_stmt_changes): New.
	(pop_stmt_changes): New.  Update every pass that modifies
	statements to bracket modifications with
	push_stmt_changes/pop_stmt_changes.
	(discard_stmt_changes): New.
	* tree-ssa-dom.c (stmts_to_rescan): Change to stack of
	'tree *' instead of 'tree'.  Update all users.
	* tree-flow-inline.h (zero_imm_uses_p): New.
	(symbol_mem_tag): New.  Update every function that used
	to access the annotation directly.
	(set_symbol_mem_tag): Likewise.
	* tree-dfa.c (dump_variable): Always show the escape mask.
	(mark_symbols_for_renaming): Rename from
	mark_new_vars_to_rename.  Update all users.
	Only mark to rename naked symbols in real and virtual
	operands.

From-SVN: r119746

1 files changed, 11 insertions, 4 deletions

diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index f738d40..48893d4 100644
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -1248,6 +1248,9 @@ replace_uses_by (tree name, tree val)
 
   FOR_EACH_IMM_USE_STMT (stmt, imm_iter, name)
     {
+      if (TREE_CODE (stmt) != PHI_NODE)
+	push_stmt_changes (&stmt);
+
       FOR_EACH_IMM_USE_ON_STMT (use, imm_iter)
         {
 	  replace_exp (use, val);
@@ -1265,21 +1268,25 @@ replace_uses_by (tree name, tree val)
 		}
 	    }
 	}
+
       if (TREE_CODE (stmt) != PHI_NODE)
 	{
 	  tree rhs;
 
 	  fold_stmt_inplace (stmt);
+
+	  /* FIXME.  This should go in pop_stmt_changes.  */
 	  rhs = get_rhs (stmt);
 	  if (TREE_CODE (rhs) == ADDR_EXPR)
 	    recompute_tree_invariant_for_addr_expr (rhs);
 
 	  maybe_clean_or_replace_eh_stmt (stmt, stmt);
-	  mark_new_vars_to_rename (stmt);
+
+	  pop_stmt_changes (&stmt);
 	}
     }
 
-  gcc_assert (num_imm_uses (name) == 0);
+  gcc_assert (zero_imm_uses_p (name));
 
   /* Also update the trees stored in loop structures.  */
   if (current_loops)
@@ -3996,7 +4003,7 @@ tree_make_forwarder_block (edge fallthru)
   if (single_pred_p (bb))
     return;
 
-  /* If we redirected a branch we must create new phi nodes at the
+  /* If we redirected a branch we must create new PHI nodes at the
      start of BB.  */
   for (phi = phi_nodes (dummy); phi; phi = PHI_CHAIN (phi))
     {
@@ -5684,7 +5691,7 @@ gimplify_val (block_stmt_iterator *bsi, tree type, tree exp)
 
   bsi_insert_before (bsi, new_stmt, BSI_SAME_STMT);
   if (gimple_in_ssa_p (cfun))
-    mark_new_vars_to_rename (new_stmt);
+    mark_symbols_for_renaming (new_stmt);
 
   return t;
 }