Bad and Unknown are pinned instructions yet, speeding up code placement

[libfirm] / ir / ir / irflag.h

diff --git a/ir/ir/irflag.h b/ir/ir/irflag.h
index fa81a3c..f0d004e 100644 (file)
--- a/ir/ir/irflag.h
+++ b/ir/ir/irflag.h
@@ -66,6 +66,9 @@ void set_opt_cse (int value);
 void set_opt_global_cse (int value);
 
 /** Enables/Disables unreachable code elimination.
+ *
+ * If set, evaluate conditions of conditional branch and replace the
+ * branch with a Jmp/Bad Tuple.
  *
  * If opt_unreachable_code == 1 replace nodes (except Block,
  * Phi and Tuple) with a Bad predecessor by the Bad node.