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, 9 insertions, 4 deletions

diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c
index 492c9a0ada4..638224a8035 100644
--- a/gcc/tree-ssa-forwprop.c
+++ b/gcc/tree-ssa-forwprop.c
@@ -586,7 +586,7 @@ tidy_after_forward_propagate_addr (tree stmt)
   if (TREE_CODE (GIMPLE_STMT_OPERAND (stmt, 1)) == ADDR_EXPR)
      recompute_tree_invariant_for_addr_expr (GIMPLE_STMT_OPERAND (stmt, 1));
 
-  mark_new_vars_to_rename (stmt);
+  mark_symbols_for_renaming (stmt);
 }
 
 /* STMT defines LHS which is contains the address of the 0th element
@@ -856,9 +856,13 @@ forward_propagate_addr_expr (tree stmt, bool *some)
 	  continue;
 	}
       
+      push_stmt_changes (&use_stmt);
+
       result = forward_propagate_addr_expr_1 (stmt, use_stmt, some);
       *some |= result;
       all &= result;
+
+      pop_stmt_changes (&use_stmt);
     }
 
   return all;
@@ -1051,8 +1055,9 @@ struct tree_opt_pass pass_forwprop = {
   0,				/* properties_provided */
   0,				/* properties_destroyed */
   0,				/* todo_flags_start */
-  TODO_dump_func /* todo_flags_finish */
+  TODO_dump_func
   | TODO_ggc_collect
-  | TODO_update_ssa | TODO_verify_ssa,
-  0					/* letter */
+  | TODO_update_ssa
+  | TODO_verify_ssa,		/* todo_flags_finish */
+  0				/* letter */
 };