--- a/hotspot/src/share/vm/opto/block.hpp	Mon Apr 18 11:22:51 2016 +0200
+++ b/hotspot/src/share/vm/opto/block.hpp	Mon Apr 18 20:57:27 2016 +0300
@@ -197,7 +197,7 @@
 
   // Report the alignment required by this block.  Must be a power of 2.
   // The previous block will insert nops to get this alignment.
-  uint code_alignment();
+  uint code_alignment() const;
   uint compute_loop_alignment();
 
   // BLOCK_FREQUENCY is a sentinel to mark uses of constant block frequencies.