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, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 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: --allow-natives-syntax 29 30 // Test CompareIC stubs for normal and strict equality comparison of known 31 // objects in slow mode. These objects share the same map even though they 32 // might have completely different properties. 33 34 function eq(a, b) { 35 return a == b; 36 } 37 38 function eq_strict(a, b) { 39 return a === b; 40 } 41 42 function le(a, b) { 43 return a <= b; 44 } 45 46 function lt(a, b) { 47 return a < b; 48 } 49 50 function ge(a, b) { 51 return a >= b; 52 } 53 54 function gt(a, b) { 55 return a > b; 56 } 57 58 function test(a, b) { 59 // Check CompareIC for equality of known objects. 60 assertTrue(eq(a, a)); 61 assertTrue(eq(b, b)); 62 assertFalse(eq(a, b)); 63 // Check CompareIC for strict equality of known objects. 64 assertTrue(eq_strict(a, a)); 65 assertTrue(eq_strict(b, b)); 66 assertFalse(eq_strict(a, b)); 67 // Check CompareIC for less than or equal of known objects. 68 assertTrue(le(a, a)); 69 assertTrue(le(a, b)); 70 assertTrue(le(b, a)); 71 // Check CompareIC for less than of known objects. 72 assertFalse(lt(a, a)); 73 assertFalse(lt(a, b)); 74 assertFalse(lt(b, a)); 75 // Check CompareIC for greater than or equal of known objects. 76 assertTrue(ge(a, a)); 77 assertTrue(ge(a, b)); 78 assertTrue(ge(b, a)); 79 // Check CompareIC for greater than of known objects. 80 assertFalse(gt(a, a)); 81 assertFalse(gt(a, b)); 82 assertFalse(gt(b, a)); 83 } 84 85 // Prepare two objects in slow mode that have the same map. 86 var obj1 = %OptimizeObjectForAddingMultipleProperties({}, 1); 87 var obj2 = %OptimizeObjectForAddingMultipleProperties({}, 1); 88 89 // Test original objects. 90 assertTrue(%HaveSameMap(obj1, obj2)); 91 test(obj1, obj2); 92 93 // Test after adding property to first object. 94 obj1.x = 1; 95 assertTrue(%HaveSameMap(obj1, obj2)); 96 test(obj1, obj2); 97 98 // Test after adding property to second object. 99 obj2.y = 2; 100 assertTrue(%HaveSameMap(obj1, obj2)); 101 test(obj1, obj2); 102
