/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
/**
* @file
* @brief Definitions for optimisation flags
- * @author Michael Beck
+ * @author Michael Beck, Sebastian Hack
* @version $Id$
*/
+/*
+ * We have 3 kinds of flags:
+ * I_FLAGS are INTERNAL flags: There is only a public set_opt_<flag> function
+ * E_FLAGS are EXTERNAL flags: Public get_opt_<flag> and set_opt_<flag> fucntions exists
+ * R_FLAGS are RUNNING flags: Use only internally in libfirm to indicate running states
+ */
+
/** Turn off all optimizations. */
I_FLAG(optimize , 0, ON)
/** */
I_FLAG(control_flow_strong_simplification , 7, ON)
-/** Reclaim memory. */
-I_FLAG(dead_node_elimination , 8, ON)
-
-/** Reassociate nodes. */
-I_FLAG(reassociation , 9, ON)
+/** Algebraic simplifications. */
+I_FLAG(algebraic_simplification , 8, ON)
-/** Do inlining transformation. */
-I_FLAG(inline , 10, ON)
+/** Use Global Null Pointer Test elimination. */
+I_FLAG(global_null_ptr_elimination , 10, ON)
/** Remove dynamic method dispatch. */
E_FLAG(dyn_meth_dispatch , 11, ON)
*/
I_FLAG(normalize , 12, ON)
-/** Remove tail-recursion. */
-I_FLAG(tail_recursion , 13, ON)
-
-/** Free never called methods */
-I_FLAG(dead_method_elimination , 14, ON)
+I_FLAG(allow_conv_b , 13, ON)
/** precise exception context */
-I_FLAG(precise_exc_context , 15, ON)
-
-/** Do loop unrolling */
-I_FLAG(loop_unrolling , 16, OFF) /* currently buggy, 2.1.2006 */
-
-/** Do Strength reduction */
-I_FLAG(strength_red , 17, ON)
-
-/** Optimize Loads and Stores */
-I_FLAG(redundant_loadstore , 18, ON)
+I_FLAG(precise_exc_context , 15, OFF)
/** Optimize Fragile OPs */
-I_FLAG(fragile_ops , 19, OFF)
-
-/** If conversion. */
-I_FLAG(if_conversion , 20, OFF)
-
-/** Optimize function calls. */
-I_FLAG(function_call , 21, ON)
+I_FLAG(fragile_ops , 16, OFF)
/** Optimize cast nodes. */
-E_FLAG(optimize_class_casts , 22, ON)
-E_FLAG(suppress_downcast_optimization , 23, OFF)
+E_FLAG(optimize_class_casts , 21, ON)
+E_FLAG(suppress_downcast_optimization , 22, OFF)
/** Not really an optimization, removes Confirm nodes. */
-I_FLAG(remove_confirm , 24, OFF)
-
-/** Scalar replacement. */
-I_FLAG(scalar_replacement , 25, ON)
+I_FLAG(remove_confirm , 23, OFF)
/** Load and Store have only Null exceptions. */
-I_FLAG(ldst_only_null_ptr_exceptions , 26, ON)
+I_FLAG(ldst_only_null_ptr_exceptions , 25, ON)
/** Sel-based Null-pointer check elimination. */
-I_FLAG(sel_based_null_check_elim , 27, OFF)
+I_FLAG(sel_based_null_check_elim , 26, OFF)
/** Automatically create Sync node during construction. */
-I_FLAG(auto_create_sync , 28, OFF)
+I_FLAG(auto_create_sync , 27, OFF)
/** Enable Alias-analysis. */
-I_FLAG(alias_analysis , 29, ON)
+I_FLAG(alias_analysis , 28, ON)
/** Closed world assumption. */
I_FLAG(closed_world , 31, OFF)
+
+/* -------------------- RUNNING flags ------------------- */
+
+/** This flag is set while the reassociation optimizations are running */
+R_FLAG(reassoc , 0)