X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbearch.h;h=060d0b9aeae7b2547b1b53a764daa488680b17b8;hb=03214ca29ad177e9d428806b442a6011f70ec6fc;hp=011b5cb620d821fb37cde30c6d240245210dd5e9;hpb=48bb3d05a2605481bf32b4fb20dbb41c4898e24e;p=libfirm

diff --git a/ir/be/bearch.h b/ir/be/bearch.h
index 011b5cb62..060d0b9ae 100644
--- a/ir/be/bearch.h
+++ b/ir/be/bearch.h
@@ -26,7 +26,7 @@ typedef enum _arch_register_type_t {
   arch_register_type_callee_save  = 2, /**< The register must be saved by the caller
                                             upon a function call. It thus can be overwritten
                                             in the called function. */
-  arch_register_type_ignore = 4,       /**< Do not consider this register when allocating. */
+  arch_register_type_ignore       = 4, /**< Do not consider this register when allocating. */
 } arch_register_type_t;
 
 /**
@@ -36,7 +36,7 @@ typedef enum _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)
+  (((reg)->type & arch_register_type_ ## kind) != 0)
 
 /**
  * A register.
@@ -75,8 +75,12 @@ struct _arch_register_class_t {
   const arch_register_t *regs;    /**< The array of registers. */
 };
 
+/** return the number of registers in this register class */
 #define arch_register_class_n_regs(cls) ((cls)->n_regs)
 
+/** return the largest mode of this register class */
+#define arch_register_class_mode(cls) ((cls)->mode)
+
 /**
  * Put all registers in a class into a bitset.
  * @param cls The class.
@@ -342,7 +346,7 @@ extern int arch_reg_is_allocatable(const arch_env_t *env,
  * Get the register class of an operand of a node.
  * @param env The architecture environment.
  * @param irn The node.
- * @param pos The position of the operand.
+ * @param pos The position of the operand, -1 for the output.
  * @return    The register class of the operand or NULL, if
  *            operand is a non-register operand.
  */
@@ -494,10 +498,6 @@ struct _arch_isa_t {
  */
 struct _arch_isa_if_t {
 
-#ifdef WITH_LIBCORE
-  void (*register_options)(lc_opt_entry_t *grp);
-#endif
-
   /**
    * Initialize the isa interface.
    */
@@ -559,14 +559,30 @@ struct _arch_isa_if_t {
    */
   const list_sched_selector_t *(*get_list_sched_selector)(const void *self);
 
+  /**
+   * Get the necessary alignment for storing a register of given class.
+   * @param self  The isa object.
+   * @param cls   The register class.
+   * @return      The alignment in bytes.
+   */
+  int (*get_reg_class_alignment)(const void *self, const arch_register_class_t *cls);
+
+#ifdef WITH_LIBCORE
+	/**
+	 * Register command line options for this backend.
+	 * @param grp  The root group.
+	 */
+  void (*register_options)(lc_opt_entry_t *grp);
+#endif
 };
 
-#define arch_isa_get_n_reg_class(isa)                       ((isa)->impl->get_n_reg_class(isa))
-#define arch_isa_get_reg_class(isa,i)                       ((isa)->impl->get_reg_class(isa, i))
-#define arch_isa_get_irn_handler(isa)			            ((isa)->impl->get_irn_handler(isa))
-#define arch_isa_get_call_abi(isa,tp,abi)                   ((isa)->impl->get_call_abi((isa), (tp), (abi)))
-#define arch_isa_get_reg_class_for_mode(isa,mode)           ((isa)->impl->get_reg_class_for_mode((isa), (mode)))
-#define arch_isa_make_code_generator(isa,irg)               ((isa)->impl->make_code_generator(isa, irg))
+#define arch_isa_get_n_reg_class(isa)                ((isa)->impl->get_n_reg_class(isa))
+#define arch_isa_get_reg_class(isa,i)                ((isa)->impl->get_reg_class(isa, i))
+#define arch_isa_get_irn_handler(isa)                ((isa)->impl->get_irn_handler(isa))
+#define arch_isa_get_call_abi(isa,tp,abi)            ((isa)->impl->get_call_abi((isa), (tp), (abi)))
+#define arch_isa_get_reg_class_for_mode(isa,mode)    ((isa)->impl->get_reg_class_for_mode((isa), (mode)))
+#define arch_isa_make_code_generator(isa,irg)        ((isa)->impl->make_code_generator((isa), (irg)))
+#define arch_isa_get_reg_class_alignment(isa, cls)   ((isa)->impl->get_reg_class_alignment((isa), (cls)))
 
 #define ARCH_MAX_HANDLERS         8