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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --allow-natives-syntax | 28 // Flags: --allow-natives-syntax --smi-only-arrays |
29 // Test element kind of objects | 29 // Test element kind of objects. |
| 30 // Since --smi-only-arrays affects builtins, its default setting at compile |
| 31 // time sticks if built with snapshot. If --smi-only-arrays is deactivated |
| 32 // by default, only a no-snapshot build actually has smi-only arrays enabled |
| 33 // in this test case. Depending on whether smi-only arrays are actually |
| 34 // enabled, this test takes the appropriate code path to check smi-only arrays. |
| 35 |
| 36 |
| 37 support_smi_only_arrays = %HasFastSmiOnlyElements([]); |
| 38 |
| 39 if (support_smi_only_arrays) { |
| 40 print("Tests include smi-only arrays."); |
| 41 } else { |
| 42 print("Tests do NOT include smi-only arrays."); |
| 43 } |
30 | 44 |
31 var element_kind = { | 45 var element_kind = { |
| 46 fast_smi_only_elements : 0, |
32 fast_elements : 1, | 47 fast_elements : 1, |
33 fast_double_elements : 2, | 48 fast_double_elements : 2, |
34 dictionary_elements : 3, | 49 dictionary_elements : 3, |
35 external_byte_elements : 4, | 50 external_byte_elements : 4, |
36 external_unsigned_byte_elements : 5, | 51 external_unsigned_byte_elements : 5, |
37 external_short_elements : 6, | 52 external_short_elements : 6, |
38 external_unsigned_short_elements : 7, | 53 external_unsigned_short_elements : 7, |
39 external_int_elements : 8, | 54 external_int_elements : 8, |
40 external_unsigned_int_elements : 9, | 55 external_unsigned_int_elements : 9, |
41 external_float_elements : 10, | 56 external_float_elements : 10, |
42 external_double_elements : 11, | 57 external_double_elements : 11, |
43 external_pixel_elements : 12 | 58 external_pixel_elements : 12 |
44 } | 59 } |
45 | 60 |
46 // We expect an object to only be of one element kind. | 61 // We expect an object to only be of one element kind. |
47 function assertKind(expected, obj){ | 62 function assertKind(expected, obj) { |
48 assertEquals(expected == element_kind.fast_elements, | 63 if (support_smi_only_arrays) { |
49 %HasFastElements(obj)); | 64 assertEquals(expected == element_kind.fast_smi_only_elements, |
| 65 %HasFastSmiOnlyElements(obj)); |
| 66 assertEquals(expected == element_kind.fast_elements, |
| 67 %HasFastElements(obj)); |
| 68 } else { |
| 69 assertEquals(expected == element_kind.fast_elements || |
| 70 expected == element_kind.fast_smi_only_elements, |
| 71 %HasFastElements(obj)); |
| 72 } |
50 assertEquals(expected == element_kind.fast_double_elements, | 73 assertEquals(expected == element_kind.fast_double_elements, |
51 %HasFastDoubleElements(obj)); | 74 %HasFastDoubleElements(obj)); |
52 assertEquals(expected == element_kind.dictionary_elements, | 75 assertEquals(expected == element_kind.dictionary_elements, |
53 %HasDictionaryElements(obj)); | 76 %HasDictionaryElements(obj)); |
54 assertEquals(expected == element_kind.external_byte_elements, | 77 assertEquals(expected == element_kind.external_byte_elements, |
55 %HasExternalByteElements(obj)); | 78 %HasExternalByteElements(obj)); |
56 assertEquals(expected == element_kind.external_unsigned_byte_elements, | 79 assertEquals(expected == element_kind.external_unsigned_byte_elements, |
57 %HasExternalUnsignedByteElements(obj)); | 80 %HasExternalUnsignedByteElements(obj)); |
58 assertEquals(expected == element_kind.external_short_elements, | 81 assertEquals(expected == element_kind.external_short_elements, |
59 %HasExternalShortElements(obj)); | 82 %HasExternalShortElements(obj)); |
(...skipping 13 matching lines...) Expand all Loading... |
73 assertEquals(expected >= element_kind.external_byte_elements, | 96 assertEquals(expected >= element_kind.external_byte_elements, |
74 %HasExternalArrayElements(obj)); | 97 %HasExternalArrayElements(obj)); |
75 } | 98 } |
76 | 99 |
77 var me = {}; | 100 var me = {}; |
78 assertKind(element_kind.fast_elements, me); | 101 assertKind(element_kind.fast_elements, me); |
79 me.dance = 0xD15C0; | 102 me.dance = 0xD15C0; |
80 me.drink = 0xC0C0A; | 103 me.drink = 0xC0C0A; |
81 assertKind(element_kind.fast_elements, me); | 104 assertKind(element_kind.fast_elements, me); |
82 | 105 |
| 106 var too = [1,2,3]; |
| 107 assertKind(element_kind.fast_smi_only_elements, too); |
| 108 too.dance = 0xD15C0; |
| 109 too.drink = 0xC0C0A; |
| 110 assertKind(element_kind.fast_smi_only_elements, too); |
| 111 |
| 112 // Make sure the element kind transitions from smionly when a non-smi is stored. |
83 var you = new Array(); | 113 var you = new Array(); |
84 for(i = 0; i < 1337; i++) { | 114 assertKind(element_kind.fast_smi_only_elements, you); |
85 you[i] = i; | 115 for (var i = 0; i < 1337; i++) { |
| 116 var val = i; |
| 117 if (i == 1336) { |
| 118 assertKind(element_kind.fast_smi_only_elements, you); |
| 119 val = new Object(); |
| 120 } |
| 121 you[i] = val; |
86 } | 122 } |
87 assertKind(element_kind.fast_elements, you); | 123 assertKind(element_kind.fast_elements, you); |
88 | 124 |
89 assertKind(element_kind.dictionary_elements, new Array(0xC0C0A)); | 125 assertKind(element_kind.dictionary_elements, new Array(0xDECAF)); |
90 | 126 |
91 // fast_double_elements not yet available | 127 var fast_double_array = new Array(0xDECAF); |
92 | 128 for (var i = 0; i < 0xDECAF; i++) fast_double_array[i] = i / 2; |
| 129 assertKind(element_kind.fast_double_elements, fast_double_array); |
93 | 130 |
94 assertKind(element_kind.external_byte_elements, new Int8Array(9001)); | 131 assertKind(element_kind.external_byte_elements, new Int8Array(9001)); |
95 assertKind(element_kind.external_unsigned_byte_elements, new Uint8Array(007)); | 132 assertKind(element_kind.external_unsigned_byte_elements, new Uint8Array(007)); |
96 assertKind(element_kind.external_short_elements, new Int16Array(666)); | 133 assertKind(element_kind.external_short_elements, new Int16Array(666)); |
97 assertKind(element_kind.external_unsigned_short_elements, new Uint16Array(42)); | 134 assertKind(element_kind.external_unsigned_short_elements, new Uint16Array(42)); |
98 assertKind(element_kind.external_int_elements, new Int32Array(0xF)); | 135 assertKind(element_kind.external_int_elements, new Int32Array(0xF)); |
99 assertKind(element_kind.external_unsigned_int_elements, new Uint32Array(23)); | 136 assertKind(element_kind.external_unsigned_int_elements, new Uint32Array(23)); |
100 assertKind(element_kind.external_float_elements, new Float32Array(7)); | 137 assertKind(element_kind.external_float_elements, new Float32Array(7)); |
101 assertKind(element_kind.external_double_elements, new Float64Array(0)); | 138 assertKind(element_kind.external_double_elements, new Float64Array(0)); |
102 assertKind(element_kind.external_pixel_elements, new PixelArray(512)); | 139 assertKind(element_kind.external_pixel_elements, new PixelArray(512)); |
| 140 |
| 141 // Crankshaft support for smi-only array elements. |
| 142 function monomorphic(array) { |
| 143 for (var i = 0; i < 3; i++) { |
| 144 array[i] = i + 10; |
| 145 } |
| 146 assertKind(element_kind.fast_smi_only_elements, array); |
| 147 for (var i = 0; i < 3; i++) { |
| 148 var a = array[i]; |
| 149 assertEquals(i + 10, a); |
| 150 } |
| 151 } |
| 152 var smi_only = [1, 2, 3]; |
| 153 for (var i = 0; i < 3; i++) monomorphic(smi_only); |
| 154 %OptimizeFunctionOnNextCall(monomorphic); |
| 155 monomorphic(smi_only); |
| 156 function polymorphic(array, expected_kind) { |
| 157 array[1] = 42; |
| 158 assertKind(expected_kind, array); |
| 159 var a = array[1]; |
| 160 assertEquals(42, a); |
| 161 } |
| 162 var smis = [1, 2, 3]; |
| 163 var strings = ["one", "two", "three"]; |
| 164 var doubles = [0, 0, 0]; doubles[0] = 1.5; doubles[1] = 2.5; doubles[2] = 3.5; |
| 165 assertKind(support_smi_only_arrays |
| 166 ? element_kind.fast_double_elements |
| 167 : element_kind.fast_elements, |
| 168 doubles); |
| 169 for (var i = 0; i < 3; i++) { |
| 170 polymorphic(smis, element_kind.fast_smi_only_elements); |
| 171 polymorphic(strings, element_kind.fast_elements); |
| 172 polymorphic(doubles, support_smi_only_arrays |
| 173 ? element_kind.fast_double_elements |
| 174 : element_kind.fast_elements); |
| 175 } |
| 176 %OptimizeFunctionOnNextCall(polymorphic); |
| 177 polymorphic(smis, element_kind.fast_smi_only_elements); |
| 178 polymorphic(strings, element_kind.fast_elements); |
| 179 polymorphic(doubles, support_smi_only_arrays |
| 180 ? element_kind.fast_double_elements |
| 181 : element_kind.fast_elements); |
| 182 |
| 183 // Crankshaft support for smi-only elements in dynamic array literals. |
| 184 function get(foo) { return foo; } // Used to generate dynamic values. |
| 185 |
| 186 //function crankshaft_test(expected_kind) { |
| 187 function crankshaft_test() { |
| 188 var a = [get(1), get(2), get(3)]; |
| 189 assertKind(element_kind.fast_smi_only_elements, a); |
| 190 var b = [get(1), get(2), get("three")]; |
| 191 assertKind(element_kind.fast_elements, b); |
| 192 var c = [get(1), get(2), get(3.5)]; |
| 193 // The full code generator doesn't support conversion to fast_double_elements |
| 194 // yet. Crankshaft does, but only with --smi-only-arrays support. |
| 195 if ((%GetOptimizationStatus(crankshaft_test) & 1) && |
| 196 support_smi_only_arrays) { |
| 197 assertKind(element_kind.fast_double_elements, c); |
| 198 } else { |
| 199 assertKind(element_kind.fast_elements, c); |
| 200 } |
| 201 } |
| 202 for (var i = 0; i < 3; i++) { |
| 203 crankshaft_test(); |
| 204 } |
| 205 %OptimizeFunctionOnNextCall(crankshaft_test); |
| 206 crankshaft_test(); |
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