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      1 // Copyright 2012 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Flags: --expose-gc
     29 
     30 // Test whether the runtime implementation and generated code of
     31 // sine and tangens return the same results.
     32 
     33 function test(f, x, name) {
     34   // Reset transcendental cache.
     35   gc();
     36   // Initializing cache leads to a runtime call.
     37   var runtime_result = f(x);
     38   // Flush transcendental cache entries and optimize f.
     39   for (var i = 0; i < 100000; i++) f(i);
     40   // Calculate using generated code.
     41   var gencode_result = f(x);
     42   print(name + " runtime function: " + runtime_result);
     43   print(name + " generated code  : " + gencode_result);
     44   assertEquals(gencode_result, runtime_result);
     45 }
     46 
     47 test(Math.tan, -1.57079632679489660000, "Math.tan");
     48 test(Math.sin, 6.283185307179586, "Math.sin");
     49