*** old/src/share/vm/opto/loopTransform.cpp	Mon Mar 17 11:39:33 2014
--- new/src/share/vm/opto/loopTransform.cpp	Mon Mar 17 11:39:33 2014

*** 615,624 ****
--- 615,633 ----
        case Op_StrIndexOf:
        case Op_EncodeISOArray:
        case Op_AryEq: {
          return false;
        }
+ #if INCLUDE_RTM_OPT
+       case Op_FastLock:
+       case Op_FastUnlock: {
+         // Don't unroll RTM locking code because it is large.
+         if (UseRTMLocking) {
+           return false;
+         }
+       }
+ #endif
      } // switch
    }
  
    return true; // Do maximally unroll
  }

*** 720,729 ****
--- 729,747 ----
        case Op_AryEq: {
          // Do not unroll a loop with String intrinsics code.
          // String intrinsics are large and have loops.
          return false;
        }
+ #if INCLUDE_RTM_OPT
+       case Op_FastLock:
+       case Op_FastUnlock: {
+         // Don't unroll RTM locking code because it is large.
+         if (UseRTMLocking) {
+           return false;
+         }
+       }
+ #endif
      } // switch
    }
  
    // Check for being too big
    if (body_size > (uint)LoopUnrollLimit) {