Optimize Math.sin and Math.cos by avoiding runtime calls.

test/mjsunit/sin-cos.js

Index: test/mjsunit/sin-cos.js
===================================================================
--- test/mjsunit/sin-cos.js	(revision 0)
+++ test/mjsunit/sin-cos.js	(revision 0)
@@ -0,0 +1,49 @@
+// Copyright 2009 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Test Math.sin and Math.cos.
+
+var input_sin = [0, Math.PI, Math.PI / 6, Math.PI / 2, Math.pow(2, 70)];
+var input_cos = [0, Math.PI, Math.PI / 6, Math.PI / 2, Math.pow(2, 70)];
+
+var output_sin = input_sin.map(Math.sin);
+var output_cos = input_sin.map(Math.cos);
+
+var expected_sin = [0,
+                    1.2246063538223773e-16,
+                    0.49999999999999994,
+                    1,
+                    -0.9983193022079332];
+
+var expected_cos = [1,
+                    -1,
+                    0.8660254037844387,
+                    6.123031769111886e-17,
+                    0.05795317798935058];
+
+assertArrayEquals(expected_sin, output_sin, "sine");
+assertArrayEquals(expected_cos, output_cos, "cosine");