X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fia32_address_mode.h;h=81dab6d2ff63867e5374ae1f485a488dfc826c5e;hb=6f965967e27f2e4db1a7dbf5d050bd415fceeb5b;hp=59cd30c7b0645682acd6424b079693037ec73631;hpb=3b30943ac5097c10b4d681189b80d8d0e694ac7c;p=libfirm

diff --git a/ir/be/ia32/ia32_address_mode.h b/ir/be/ia32/ia32_address_mode.h
index 59cd30c7b..81dab6d2f 100644
--- 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.
  *
@@ -20,28 +20,68 @@
 /**
  * @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: ia32_transform.c 15462 2007-08-03 16:50:59Z matze $
  */
 #ifndef IA32_ADDRESS_MODE_H
 #define IA32_ADDRESS_MODE_H
 
+#include <stdbool.h>
 #include "irtypes.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. */
+	bool       use_frame;     /**< Set, if the frame is accessed */
+	bool       tls_segment;   /**< Set if AM is relative to TLS */
+	ir_entity *frame_entity;  /**< The accessed frame entity if any. */
+	bool       symconst_sign; /**< The "sign" of the symconst. */
 };
 
-void ia32_create_address_mode(ia32_address_t *addr, ir_node *node, int force);
+/**
+ * Additional flags for the address mode creation.
+ */
+typedef enum ia32_create_am_flags_t {
+	ia32_create_am_normal     = 0,       /**< Normal operation. */
+	ia32_create_am_force      = 1U << 0, /**< Ignore the marking of node as a
+	                                          non-address-mode node. */
+	ia32_create_am_double_use = 1U << 1  /**< Fold AM, even if the root of
+	                                          address calculation has two users.
+	                                          This is useful for dest AM. */
+} ia32_create_am_flags_t;
+
+/**
+ * Create an address mode for a given node.
+ */
+void ia32_create_address_mode(ia32_address_t *addr, ir_node *node, ia32_create_am_flags_t);
+
+/**
+ * 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(ir_graph *irg);
+
+/**
+ * Free the non_address_mode information.
+ */
+void ia32_free_non_address_mode_nodes(void);
+
+/**
+ * Tells whether the given node is a non address mode node.
+ */
+int ia32_is_non_address_mode_node(ir_node const *node);
+
+/**
+ * mark a node so it will not be used as part of address modes
+ */
+void ia32_mark_non_am(ir_node *node);
 
 #endif