Esoteric bit operations.

runtime/vm/intrinsifier.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 // Class for intrinsifying functions.
 
 #ifndef VM_INTRINSIFIER_H_
 #define VM_INTRINSIFIER_H_
 
 #include "vm/allocation.h"
 
 namespace dart {
 
 // List of intrinsics:
 // (class-name, function-name, intrinsification method, fingerprint).
 //
 // When adding a new function for intrinsification add a 0 as fingerprint,
 // build and run to get the correct fingerprint from the mismatch error.
 #define CORE_LIB_INTRINSIC_LIST(V)                                             \
   V(_Smi, ~, Smi_bitNegate, 635678453)                                         \
+  V(_Smi, get:bitLength, Smi_bitLength, 383357874)                             \
   V(_Double, >, Double_greaterThan, 1021232334)                                \
   V(_Double, >=, Double_greaterEqualThan, 324955595)                           \
   V(_Double, <, Double_lessThan, 978151157)                                    \
   V(_Double, <=, Double_lessEqualThan, 1169397675)                             \
   V(_Double, ==, Double_equal, 223604237)                                      \
   V(_Double, +, Double_add, 295873577)                                         \
   V(_Double, -, Double_sub, 1180117486)                                        \
   V(_Double, *, Double_mul, 1999983053)                                        \
   V(_Double, /, Double_div, 1904009451)                                        \
   V(_Double, get:isNaN, Double_getIsNaN, 916506740)                            \
@@ skipping 123 matching lines @@
   CORE_INTEGER_LIB_INTRINSIC_LIST(DECLARE_FUNCTION)
   MATH_LIB_INTRINSIC_LIST(DECLARE_FUNCTION)
   TYPED_DATA_LIB_INTRINSIC_LIST(DECLARE_FUNCTION)
 
 #undef DECLARE_FUNCTION
 };
 
 }  // namespace dart
 
 #endif  // VM_INTRINSIFIER_H_