- add prototype for combo()

[libfirm] / include / libfirm / tv.h

diff --git a/include/libfirm/tv.h b/include/libfirm/tv.h
index 91837d2..70f9654 100644 (file)
--- a/include/libfirm/tv.h
+++ b/include/libfirm/tv.h
@@ -274,7 +274,7 @@ int tarval_is_all_one(tarval *tv);
 
 /** The 'bad' tarval. */
 extern tarval *tarval_bad;
-/** Returns the 'bad tarval. */
+/** Returns the 'bad' tarval. */
 tarval *get_tarval_bad(void);
 
 /** The 'undefined' tarval. */
@@ -293,6 +293,16 @@ extern tarval *tarval_b_true;
 /** Returns the mode_b tarval 'true'. */
 tarval *get_tarval_b_true(void);
 
+/** The 'top' tarval. This is just another name for the 'undefined' tarval. */
+#define tarval_top          tarval_undefined
+/** Returns the 'top' tarval. */
+#define get_tarval_top()    get_tarval_undefined()
+
+/** The 'bottom' tarval. This is just another name for the 'bad' tarval. */
+#define tarval_bottom       tarval_bad
+/** Returns the 'bottom' tarval. */
+#define get_tarval_bottom() get_tarval_bad()
+
 /* These functions calculate and return a tarval representing the requested
  * value.
  * The functions get_mode_{Max,Min,...} return tarvals retrieved from these
@@ -465,8 +475,8 @@ tarval *tarval_shr(tarval *a, tarval *b);
 /** Signed (arithmetic) right shift. */
 tarval *tarval_shrs(tarval *a, tarval *b);
 
-/** Rotation. */
-tarval *tarval_rot(tarval *a, tarval *b);
+/** Rotation to left. */
+tarval *tarval_rotl(tarval *a, tarval *b);
 
 /**
  * Returns the carry flag of the last operation.
@@ -676,4 +686,14 @@ int tarval_is_minus_inf(tarval *tv);
  */
 int tarval_is_finite(tarval *tv);
 
+/**
+ *   Checks whether a pointer points to a tarval.
+ *
+ *   @param thing     an arbitrary pointer
+ *
+ *   @return
+ *       true if the thing is a tarval, else false
+ */
+int is_tarval(const void *thing);
+
 #endif  /* FIRM_TV_TV_H */