add simple load-after-load and loaf-after-store optimization as localopt

[libfirm] / ir / be / bearch.h

diff --git a/ir/be/bearch.h b/ir/be/bearch.h
index 5552445..6a68866 100644 (file)
--- a/ir/be/bearch.h
+++ b/ir/be/bearch.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2011 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -40,6 +40,13 @@
 #include "beirg.h"
 #include "error.h"
 
+/**
+ * this constant is returned by the get_sp_bias functions if the stack
+ * is reset (usually because the frame pointer is copied to the stack
+ * pointer
+ */
+#define SP_BIAS_RESET      INT_MIN
+
 typedef enum arch_register_class_flags_t {
        arch_register_class_flag_none      = 0,
        /** don't do automatic register allocation for this class */
@@ -235,12 +242,13 @@ void be_register_isa_if(const char *name, const arch_isa_if_t *isa);
  * A register.
  */
 struct arch_register_t {
-       const char                  *name;       /**< The name of the register. */
-       const arch_register_class_t *reg_class;  /**< The class of the register */
-       unsigned short               index;      /**< The index of the register in
-                                                     the class. */
-       unsigned short               global_index;
-       arch_register_type_t         type;       /**< The type of the register. */
+       const char                  *name;         /**< The name of the register. */
+       const arch_register_class_t *reg_class;    /**< The class of the register */
+       unsigned short               index;        /**< The index of the register in
+                                                       the class. */
+       unsigned short               global_index; /** The global index this register
+                                                                                              in the architecture. */
+       arch_register_type_t         type;         /**< The type of the register. */
        /** register constraint allowing just this register */
        const arch_register_req_t   *single_req;
 };
@@ -261,15 +269,6 @@ static inline const char *arch_register_get_name(const arch_register_t *reg)
        return reg->name;
 }
 
-/**
- * Convenience macro to check for register type.
- * @param req   A pointer to register.
- * @param kind  The kind of type to check for (see arch_register_type_t).
- * @return      1, If register is of given kind, 0 if not.
- */
-#define arch_register_type_is(reg, kind) \
-  (((reg)->type & arch_register_type_ ## kind) != 0)
-
 /**
  * A class of registers.
  * Like general purpose or floating point.
@@ -466,6 +465,12 @@ struct arch_isa_if_t {
         */
        arch_env_t *(*init)(FILE *file_handle);
 
+       /**
+        * lowers current program for target. See the documentation for
+        * be_lower_for_target() for details.
+        */
+       void (*lower_for_target)(void);
+
        /**
         * Free the isa instance.
         */
@@ -613,8 +618,6 @@ struct arch_env_t {
        const arch_register_t *bp;               /**< The base pointer register. */
        const arch_register_class_t *link_class; /**< The static link pointer
                                                      register class. */
-       int                    stack_dir;        /**< -1 for decreasing, 1 for
-                                                     increasing. */
        int                    stack_alignment;  /**< power of 2 stack alignment */
        const be_main_env_t   *main_env;         /**< the be main environment */
        int                    spill_cost;       /**< cost for a be_Spill node */
@@ -630,7 +633,7 @@ static inline unsigned arch_irn_get_n_outs(const ir_node *node)
        if (info->out_infos == NULL)
                return 0;
 
-       return ARR_LEN(info->out_infos);
+       return (unsigned)ARR_LEN(info->out_infos);
 }
 
 static inline const arch_irn_ops_t *get_irn_ops_simple(const ir_node *node)