X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Flibfirm%2Firoptimize.h;h=f31ea06f09c39c017ac5b8c81fa03e8a818bab1b;hb=e302589b2ee3b43584b856431b581d67bc679a68;hp=1b8dfb8af22a171105fb7545134d954a99dcb65b;hpb=037b862d722d4392d020639e00d4018c072f3fe2;p=libfirm

diff --git a/include/libfirm/iroptimize.h b/include/libfirm/iroptimize.h
index 1b8dfb8af..f31ea06f0 100644
--- a/include/libfirm/iroptimize.h
+++ b/include/libfirm/iroptimize.h
@@ -424,8 +424,14 @@ void scalar_replacement_opt(ir_graph *irg);
 void reduce_strength(ir_graph *irg);
 
 /**
- * Optimizes simple tail-recursion calls by
- * converting them into loops. Depends on the flag opt_tail_recursion.
+ * Optimizes tail-recursion calls by converting them into loops.
+ * Depends on the flag opt_tail_recursion.
+ * Currently supports the following forms:
+ *  - return func();
+ *  - return x + func();
+ *  - return func() - x;
+ *  - return x * func();
+ *  - return -func();
  *
  * Does not work for Calls that use the exception stuff.
  *