| // Copyright 2012 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. |
| |
| // Flags: --allow-natives-syntax --smi-only-arrays --expose-gc |
| // Flags: --noparallel-recompilation |
| |
| // Test element kind of objects. |
| // Since --smi-only-arrays affects builtins, its default setting at compile |
| // time sticks if built with snapshot. If --smi-only-arrays is deactivated |
| // by default, only a no-snapshot build actually has smi-only arrays enabled |
| // in this test case. Depending on whether smi-only arrays are actually |
| // enabled, this test takes the appropriate code path to check smi-only arrays. |
| |
| support_smi_only_arrays = %HasFastSmiElements([1,2,3,4,5,6,7,8,9,10]); |
| |
| if (support_smi_only_arrays) { |
| print("Tests include smi-only arrays."); |
| } else { |
| print("Tests do NOT include smi-only arrays."); |
| } |
| |
| // IC and Crankshaft support for smi-only elements in dynamic array literals. |
| function get(foo) { return foo; } // Used to generate dynamic values. |
| |
| function array_literal_test() { |
| var a0 = [1, 2, 3]; |
| assertTrue(%HasFastSmiElements(a0)); |
| var a1 = [get(1), get(2), get(3)]; |
| assertTrue(%HasFastSmiElements(a1)); |
| |
| var b0 = [1, 2, get("three")]; |
| assertTrue(%HasFastObjectElements(b0)); |
| var b1 = [get(1), get(2), get("three")]; |
| assertTrue(%HasFastObjectElements(b1)); |
| |
| var c0 = [1, 2, get(3.5)]; |
| assertTrue(%HasFastDoubleElements(c0)); |
| assertEquals(3.5, c0[2]); |
| assertEquals(2, c0[1]); |
| assertEquals(1, c0[0]); |
| |
| var c1 = [1, 2, 3.5]; |
| assertTrue(%HasFastDoubleElements(c1)); |
| assertEquals(3.5, c1[2]); |
| assertEquals(2, c1[1]); |
| assertEquals(1, c1[0]); |
| |
| var c2 = [get(1), get(2), get(3.5)]; |
| assertTrue(%HasFastDoubleElements(c2)); |
| assertEquals(3.5, c2[2]); |
| assertEquals(2, c2[1]); |
| assertEquals(1, c2[0]); |
| |
| var object = new Object(); |
| var d0 = [1, 2, object]; |
| assertTrue(%HasFastObjectElements(d0)); |
| assertEquals(object, d0[2]); |
| assertEquals(2, d0[1]); |
| assertEquals(1, d0[0]); |
| |
| var e0 = [1, 2, 3.5]; |
| assertTrue(%HasFastDoubleElements(e0)); |
| assertEquals(3.5, e0[2]); |
| assertEquals(2, e0[1]); |
| assertEquals(1, e0[0]); |
| |
| var f0 = [1, 2, [1, 2]]; |
| assertTrue(%HasFastObjectElements(f0)); |
| assertEquals([1,2], f0[2]); |
| assertEquals(2, f0[1]); |
| assertEquals(1, f0[0]); |
| } |
| |
| if (support_smi_only_arrays) { |
| for (var i = 0; i < 3; i++) { |
| array_literal_test(); |
| } |
| %OptimizeFunctionOnNextCall(array_literal_test); |
| array_literal_test(); |
| |
| function test_large_literal() { |
| |
| function d() { |
| gc(); |
| return 2.5; |
| } |
| |
| function o() { |
| gc(); |
| return new Object(); |
| } |
| |
| large = |
| [ 0, 1, 2, 3, 4, 5, d(), d(), d(), d(), d(), d(), o(), o(), o(), o() ]; |
| assertFalse(%HasDictionaryElements(large)); |
| assertFalse(%HasFastSmiElements(large)); |
| assertFalse(%HasFastDoubleElements(large)); |
| assertTrue(%HasFastObjectElements(large)); |
| assertEquals(large, |
| [0, 1, 2, 3, 4, 5, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5, |
| new Object(), new Object(), new Object(), new Object()]); |
| } |
| |
| for (var i = 0; i < 3; i++) { |
| test_large_literal(); |
| } |
| %OptimizeFunctionOnNextCall(test_large_literal); |
| test_large_literal(); |
| |
| function deopt_array(use_literal) { |
| if (use_literal) { |
| return [.5, 3, 4]; |
| } else { |
| return new Array(); |
| } |
| } |
| |
| deopt_array(false); |
| deopt_array(false); |
| deopt_array(false); |
| %OptimizeFunctionOnNextCall(deopt_array); |
| var array = deopt_array(false); |
| assertTrue(2 != %GetOptimizationStatus(deopt_array)); |
| deopt_array(true); |
| assertTrue(2 != %GetOptimizationStatus(deopt_array)); |
| array = deopt_array(false); |
| assertTrue(2 != %GetOptimizationStatus(deopt_array)); |
| |
| // Check that unexpected changes in the objects stored into the boilerplate |
| // also force a deopt. |
| function deopt_array_literal_all_smis(a) { |
| return [0, 1, a]; |
| } |
| |
| deopt_array_literal_all_smis(2); |
| deopt_array_literal_all_smis(3); |
| deopt_array_literal_all_smis(4); |
| array = deopt_array_literal_all_smis(4); |
| assertEquals(0, array[0]); |
| assertEquals(1, array[1]); |
| assertEquals(4, array[2]); |
| %OptimizeFunctionOnNextCall(deopt_array_literal_all_smis); |
| array = deopt_array_literal_all_smis(5); |
| array = deopt_array_literal_all_smis(6); |
| assertTrue(2 != %GetOptimizationStatus(deopt_array_literal_all_smis)); |
| assertEquals(0, array[0]); |
| assertEquals(1, array[1]); |
| assertEquals(6, array[2]); |
| |
| array = deopt_array_literal_all_smis(.5); |
| assertTrue(1 != %GetOptimizationStatus(deopt_array_literal_all_smis)); |
| assertEquals(0, array[0]); |
| assertEquals(1, array[1]); |
| assertEquals(.5, array[2]); |
| |
| function deopt_array_literal_all_doubles(a) { |
| return [0.5, 1, a]; |
| } |
| |
| deopt_array_literal_all_doubles(.5); |
| deopt_array_literal_all_doubles(.5); |
| deopt_array_literal_all_doubles(.5); |
| array = deopt_array_literal_all_doubles(0.5); |
| assertEquals(0.5, array[0]); |
| assertEquals(1, array[1]); |
| assertEquals(0.5, array[2]); |
| %OptimizeFunctionOnNextCall(deopt_array_literal_all_doubles); |
| array = deopt_array_literal_all_doubles(5); |
| array = deopt_array_literal_all_doubles(6); |
| assertTrue(2 != %GetOptimizationStatus(deopt_array_literal_all_doubles)); |
| assertEquals(0.5, array[0]); |
| assertEquals(1, array[1]); |
| assertEquals(6, array[2]); |
| |
| var foo = new Object(); |
| array = deopt_array_literal_all_doubles(foo); |
| assertTrue(1 != %GetOptimizationStatus(deopt_array_literal_all_doubles)); |
| assertEquals(0.5, array[0]); |
| assertEquals(1, array[1]); |
| assertEquals(foo, array[2]); |
| } |
| |
| (function literals_after_osr() { |
| var color = [0]; |
| // Trigger OSR. |
| while (%GetOptimizationStatus(literals_after_osr) == 2) {} |
| return [color[0]]; |
| })(); |