Remove redundant test.

[libfirm] / include / libfirm / iropt.h

diff --git a/include/libfirm/iropt.h b/include/libfirm/iropt.h
index cb2fb16..e008ede 100644 (file)
--- a/include/libfirm/iropt.h
+++ b/include/libfirm/iropt.h
@@ -78,7 +78,7 @@ typedef enum _fp_model_t {
 /** If the expression referenced can be evaluated statically
  *  computed_value returns a tarval representing the result.
  *  Else returns tarval_bad. */
-tarval *computed_value(ir_node *n);
+tarval *computed_value(const ir_node *n);
 
 /** Applies all optimizations to n that are expressible as a pattern
  *  in Firm, i.e., they need not a walk of the graph.