Add optimization for pow(base, 0.5) to the other architectures as well.

tests/lib/math/double_pow_test.dart

 // Copyright (c) 2011, 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.
+// VMOptions=--optimization-counter-threshold=10

[zra, 2014/04/03 17:04:46]

Maybe also add a loop to ensure that this is being hit for all test cases.

[srdjan, 2014/04/03 19:33:18]

Done.

 
 library math_test;
 import "package:expect/expect.dart";
 import 'dart:math';
 
 void checkVeryClose(double a, double b) {
   // We find a ulp (unit in the last place) by shifting the original number
   // to the right. This only works if we are not too close to infinity or if
   // we work with denormals.
   // We special case or 0.0, but not for infinity.
@@ skipping 135 matching lines @@
   // Underflow.
   Expect.identical(0.0, pow(10.0, -325.0));
 
   // Conversion to double.
 
   // The second argument is an odd integer as int, but not when converted
   // to double.
   Expect.identical(Infinity, pow(-0.0, -9223372036854775809));
 }