- copy libcore into libfirm

[libfirm] / ir / be / ia32 / ia32_address_mode.h

diff --git a/ir/be/ia32/ia32_address_mode.h b/ir/be/ia32/ia32_address_mode.h
index fba3c0c..ff9e43e 100644 (file)
--- a/ir/be/ia32/ia32_address_mode.h
+++ b/ir/be/ia32/ia32_address_mode.h
@@ -1,5 +1,5 @@
 /*
- * 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.
  *
@@ -20,7 +20,7 @@
 /**
  * @file
  * @brief       This file contains functions for matching firm graphs for
- *              nodes that can be used as addressmode for x86 commands
+ *              nodes that can be used as address mode for x86 instructions
  * @author      Matthias Braun
  * @version     $Id$
  */
@@ -28,20 +28,43 @@
 #define IA32_ADDRESS_MODE_H
 
 #include "irtypes.h"
+#include "../beirg.h"
 
+/**
+ * The address mode data: Used to construct (memory) address modes.
+ */
 typedef struct ia32_address_t ia32_address_t;
 struct ia32_address_t {
-    ir_node   *base;
-    ir_node   *index;
-       ir_node   *mem;
-    int        offset;
-    int        scale;
-    ir_entity *symconst_ent;
-    int        use_frame;
-    ir_entity *frame_entity;
-    int        symconst_sign;
+    ir_node   *base;             /**< The base register (if any) */
+    ir_node   *index;            /**< The index register (if any). */
+       ir_node   *mem;              /**< The memory value (if any). */
+    int        offset;           /**< An integer offset. */
+    int        scale;            /**< An integer scale. {0,1,2,3} */
+    ir_entity *symconst_ent;     /**< A SynConst entity if any. */
+    int        use_frame;        /**< Set, if the frame is accessed */
+    ir_entity *frame_entity;     /**< The accessed frame entity if any. */
+    int        symconst_sign;    /**< The "sign" of the symconst. */
 };
 
+/**
+ * Create an address mode for a given node.
+ */
 void ia32_create_address_mode(ia32_address_t *addr, ir_node *node, int force);
 
+/**
+ * Mark those nodes of the given graph that cannot be used inside an
+ * address mode because there values must be materialized in registers.
+ */
+void ia32_calculate_non_address_mode_nodes(be_irg_t *birg);
+
+/**
+ * Free the non_address_mode information.
+ */
+void ia32_free_non_address_mode_nodes(void);
+
+/**
+ * mark a node so it will not be used as part of address modes
+ */
+void ia32_mark_non_am(ir_node *node);
+
 #endif