X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fopt%2Fproc_cloning.h;h=c530dd25909bf3a63ac9019236731ca74a07fff2;hb=f274dcf35aa0d3f4748387dbddfe50e8d7d44951;hp=2f514786bda1aca2183d5d50dccc3d3e73f00c2f;hpb=0f2cd50621b42aa82a0c3201cc6260d28f5b0fd0;p=libfirm

diff --git a/ir/opt/proc_cloning.h b/ir/opt/proc_cloning.h
index 2f514786b..c530dd259 100644
--- a/ir/opt/proc_cloning.h
+++ b/ir/opt/proc_cloning.h
@@ -13,12 +13,19 @@
 
 #include "firm_types.h"
 
+/** A default threshold. */
+#define DEFAULT_CLONE_THRESHOLD 300
+
 /**
- * Do the procedure cloning. Evaluate a heuristic weight for every
- * call(..., Const, ...). If the weight is bigger than threshold,
+ * Do procedure cloning. Evaluate a heuristic weight for every
+ * Call(..., Const, ...). If the weight is bigger than threshold,
  * clone the entity and fix the calls.
  *
  * @param threshold   the threshold for cloning
+ *
+ * The threshold is an estimation of how many instructions are saved
+ * when executing a cloned method. If threshold is 0.0, every possible
+ * call is cloned.
  */
 void proc_cloning(float threshold);