added use extbb walker option

[libfirm] / ir / be / bearch.h

diff --git a/ir/be/bearch.h b/ir/be/bearch.h
index 743b906..da5a5a5 100644 (file)
--- a/ir/be/bearch.h
+++ b/ir/be/bearch.h
@@ -122,6 +122,8 @@ typedef enum _arch_register_req_type_t {
   arch_register_req_type_should_be_different = 8,  /**< The register must be unequal
                                                         to some other at the node. */
 
+  arch_register_req_type_should_be_different_from_all = 16, /**< The register must be different from
+                                                        all in's at the node */
 } arch_register_req_type_t;
 
 /**
@@ -391,7 +393,7 @@ extern arch_irn_flags_t arch_irn_get_flags(const arch_env_t *env, const ir_node
        (arch_irn_has_reg_class(env, irn, -1, cls) && !arch_irn_is_ignore(env, irn))
 
 /**
- * Somebody who can be asked about nodes.
+ * Somebody who can be asked about IR nodes.
  */
 struct _arch_irn_handler_t {
 
@@ -403,15 +405,12 @@ struct _arch_irn_handler_t {
     */
   const void *(*get_irn_ops)(const arch_irn_handler_t *handler,
       const ir_node *irn);
-
 };
 
 /**
- * The code generator.
+ * The code generator interface.
  */
 struct _arch_code_generator_if_t {
-
-
        /**
         * Initialize the code generator.
         * @param file The file to dump to.
@@ -450,9 +449,12 @@ struct _arch_code_generator_if_t {
         * The code generator must also be de-allocated here.
         */
        void (*done)(void *self);
-
 };
 
+/**
+ * helper macro: call function func from the code generator
+ * if it's implemented.
+ */
 #define _arch_cg_call(cg, func) \
 do { \
        if((cg)->impl->func) \