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Issue 148503002: A64: Synchronize with r15545. (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/a64
Patch Set: Created 6 years, 11 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions
6 // are met:
7 // 1. Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 // 2. Redistributions in binary form must reproduce the above copyright
10 // notice, this list of conditions and the following disclaimer in the
11 // documentation and/or other materials provided with the distribution.
12 //
13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y
14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y
17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N
20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23
24 description(
25 "This test verifies that the bit twiddling done in JavaScriptCore's integer mach inery works correctly on the current platform."
26 );
27
28 shouldBe("(-1).toString()", '"-1"');
29 shouldBe("(0).toString()", '"0"');
30 shouldBe("(-0).toString()", '"0"');
31 debug("");
32
33 var answers = [
34 ['"-128"', '"-129"', '"127"', '"128"'],
35 ['"-256"', '"-257"', '"255"', '"256"'],
36 ['"-512"', '"-513"', '"511"', '"512"'],
37 ['"-1024"', '"-1025"', '"1023"', '"1024"'],
38 ['"-2048"', '"-2049"', '"2047"', '"2048"'],
39 ['"-4096"', '"-4097"', '"4095"', '"4096"'],
40 ['"-8192"', '"-8193"', '"8191"', '"8192"'],
41 ['"-16384"', '"-16385"', '"16383"', '"16384"'],
42 ['"-32768"', '"-32769"', '"32767"', '"32768"'],
43 ['"-65536"', '"-65537"', '"65535"', '"65536"'],
44 ['"-131072"', '"-131073"', '"131071"', '"131072"'],
45 ['"-262144"', '"-262145"', '"262143"', '"262144"'],
46 ['"-524288"', '"-524289"', '"524287"', '"524288"'],
47 ['"-1048576"', '"-1048577"', '"1048575"', '"1048576"'],
48 ['"-2097152"', '"-2097153"', '"2097151"', '"2097152"'],
49 ['"-4194304"', '"-4194305"', '"4194303"', '"4194304"'],
50 ['"-8388608"', '"-8388609"', '"8388607"', '"8388608"'],
51 ['"-16777216"', '"-16777217"', '"16777215"', '"16777216"'],
52 ['"-33554432"', '"-33554433"', '"33554431"', '"33554432"'],
53 ['"-67108864"', '"-67108865"', '"67108863"', '"67108864"'],
54 ['"-134217728"', '"-134217729"', '"134217727"', '"134217728"'],
55 ['"-268435456"', '"-268435457"', '"268435455"', '"268435456"'],
56 ['"-536870912"', '"-536870913"', '"536870911"', '"536870912"'],
57 ['"-1073741824"', '"-1073741825"', '"1073741823"', '"1073741824"'],
58 ['"-2147483648"', '"-2147483649"', '"2147483647"', '"2147483648"'],
59 ['"-4294967296"', '"-4294967297"', '"4294967295"', '"4294967296"'],
60 ['"-8589934592"', '"-8589934593"', '"8589934591"', '"8589934592"'],
61 ['"-17179869184"', '"-17179869185"', '"17179869183"', '"17179869184"'],
62 ['"-34359738368"', '"-34359738369"', '"34359738367"', '"34359738368"'],
63 ['"-68719476736"', '"-68719476737"', '"68719476735"', '"68719476736"'],
64 ['"-137438953472"', '"-137438953473"', '"137438953471"', '"137438953472"'],
65 ['"-274877906944"', '"-274877906945"', '"274877906943"', '"274877906944"'],
66 ['"-549755813888"', '"-549755813889"', '"549755813887"', '"549755813888"'],
67 ['"-1099511627776"', '"-1099511627777"', '"1099511627775"', '"1099511627776"'],
68 ['"-2199023255552"', '"-2199023255553"', '"2199023255551"', '"2199023255552"'],
69 ['"-4398046511104"', '"-4398046511105"', '"4398046511103"', '"4398046511104"'],
70 ['"-8796093022208"', '"-8796093022209"', '"8796093022207"', '"8796093022208"'],
71 ['"-17592186044416"', '"-17592186044417"', '"17592186044415"', '"17592186044416" '],
72 ['"-35184372088832"', '"-35184372088833"', '"35184372088831"', '"35184372088832" '],
73 ['"-70368744177664"', '"-70368744177665"', '"70368744177663"', '"70368744177664" '],
74 ['"-140737488355328"', '"-140737488355329"', '"140737488355327"', '"140737488355 328"'],
75 ['"-281474976710656"', '"-281474976710657"', '"281474976710655"', '"281474976710 656"'],
76 ['"-562949953421312"', '"-562949953421313"', '"562949953421311"', '"562949953421 312"'],
77 ['"-1125899906842624"', '"-1125899906842625"', '"1125899906842623"', '"112589990 6842624"'],
78 ['"-2251799813685248"', '"-2251799813685249"', '"2251799813685247"', '"225179981 3685248"'],
79 ['"-4503599627370496"', '"-4503599627370497"', '"4503599627370495"', '"450359962 7370496"'],
80 ['"-9007199254740992"', '"-9007199254740992"', '"9007199254740991"', '"900719925 4740992"'],
81 ['"-18014398509481984"', '"-18014398509481984"', '"18014398509481984"', '"180143 98509481984"'],
82 ['"-36028797018963970"', '"-36028797018963970"', '"36028797018963970"', '"360287 97018963970"'],
83 ['"-72057594037927940"', '"-72057594037927940"', '"72057594037927940"', '"720575 94037927940"'],
84 ['"-144115188075855870"', '"-144115188075855870"', '"144115188075855870"', '"144 115188075855870"'],
85 ['"-288230376151711740"', '"-288230376151711740"', '"288230376151711740"', '"288 230376151711740"'],
86 ['"-576460752303423500"', '"-576460752303423500"', '"576460752303423500"', '"576 460752303423500"'],
87 ['"-1152921504606847000"', '"-1152921504606847000"', '"1152921504606847000"', '" 1152921504606847000"'],
88 ['"-2305843009213694000"', '"-2305843009213694000"', '"2305843009213694000"', '" 2305843009213694000"'],
89 ['"-4611686018427388000"', '"-4611686018427388000"', '"4611686018427388000"', '" 4611686018427388000"'],
90 ['"-9223372036854776000"', '"-9223372036854776000"', '"9223372036854776000"', '" 9223372036854776000"'],
91 ['"-18446744073709552000"', '"-18446744073709552000"', '"18446744073709552000"', '"18446744073709552000"'],
92 ['"-36893488147419103000"', '"-36893488147419103000"', '"36893488147419103000"', '"36893488147419103000"'],
93 ['"-73786976294838210000"', '"-73786976294838210000"', '"73786976294838210000"', '"73786976294838210000"'],
94 ['"-147573952589676410000"', '"-147573952589676410000"', '"147573952589676410000 "', '"147573952589676410000"'],
95 ['"-295147905179352830000"', '"-295147905179352830000"', '"295147905179352830000 "', '"295147905179352830000"'],
96 ['"-590295810358705700000"', '"-590295810358705700000"', '"590295810358705700000 "', '"590295810358705700000"'],
97 ['"-1.1805916207174113e+21"', '"-1.1805916207174113e+21"', '"1.1805916207174113e +21"', '"1.1805916207174113e+21"'],
98 ['"-2.3611832414348226e+21"', '"-2.3611832414348226e+21"', '"2.3611832414348226e +21"', '"2.3611832414348226e+21"'],
99 ['"-4.722366482869645e+21"', '"-4.722366482869645e+21"', '"4.722366482869645e+21 "', '"4.722366482869645e+21"'],
100 ['"-9.44473296573929e+21"', '"-9.44473296573929e+21"', '"9.44473296573929e+21"', '"9.44473296573929e+21"'],
101 ['"-1.888946593147858e+22"', '"-1.888946593147858e+22"', '"1.888946593147858e+22 "', '"1.888946593147858e+22"'],
102 ['"-3.777893186295716e+22"', '"-3.777893186295716e+22"', '"3.777893186295716e+22 "', '"3.777893186295716e+22"'],
103 ['"-7.555786372591432e+22"', '"-7.555786372591432e+22"', '"7.555786372591432e+22 "', '"7.555786372591432e+22"'],
104 ['"-1.5111572745182865e+23"', '"-1.5111572745182865e+23"', '"1.5111572745182865e +23"', '"1.5111572745182865e+23"'],
105 ['"-3.022314549036573e+23"', '"-3.022314549036573e+23"', '"3.022314549036573e+23 "', '"3.022314549036573e+23"'],
106 ['"-6.044629098073146e+23"', '"-6.044629098073146e+23"', '"6.044629098073146e+23 "', '"6.044629098073146e+23"'],
107 ['"-1.2089258196146292e+24"', '"-1.2089258196146292e+24"', '"1.2089258196146292e +24"', '"1.2089258196146292e+24"'],
108 ['"-2.4178516392292583e+24"', '"-2.4178516392292583e+24"', '"2.4178516392292583e +24"', '"2.4178516392292583e+24"'],
109 ['"-4.835703278458517e+24"', '"-4.835703278458517e+24"', '"4.835703278458517e+24 "', '"4.835703278458517e+24"'],
110 ['"-9.671406556917033e+24"', '"-9.671406556917033e+24"', '"9.671406556917033e+24 "', '"9.671406556917033e+24"'],
111 ['"-1.9342813113834067e+25"', '"-1.9342813113834067e+25"', '"1.9342813113834067e +25"', '"1.9342813113834067e+25"'],
112 ['"-3.8685626227668134e+25"', '"-3.8685626227668134e+25"', '"3.8685626227668134e +25"', '"3.8685626227668134e+25"'],
113 ['"-7.737125245533627e+25"', '"-7.737125245533627e+25"', '"7.737125245533627e+25 "', '"7.737125245533627e+25"'],
114 ['"-1.5474250491067253e+26"', '"-1.5474250491067253e+26"', '"1.5474250491067253e +26"', '"1.5474250491067253e+26"'],
115 ['"-3.094850098213451e+26"', '"-3.094850098213451e+26"', '"3.094850098213451e+26 "', '"3.094850098213451e+26"'],
116 ['"-6.189700196426902e+26"', '"-6.189700196426902e+26"', '"6.189700196426902e+26 "', '"6.189700196426902e+26"'],
117 ['"-1.2379400392853803e+27"', '"-1.2379400392853803e+27"', '"1.2379400392853803e +27"', '"1.2379400392853803e+27"'],
118 ['"-2.4758800785707605e+27"', '"-2.4758800785707605e+27"', '"2.4758800785707605e +27"', '"2.4758800785707605e+27"'],
119 ['"-4.951760157141521e+27"', '"-4.951760157141521e+27"', '"4.951760157141521e+27 "', '"4.951760157141521e+27"'],
120 ['"-9.903520314283042e+27"', '"-9.903520314283042e+27"', '"9.903520314283042e+27 "', '"9.903520314283042e+27"'],
121 ['"-1.9807040628566084e+28"', '"-1.9807040628566084e+28"', '"1.9807040628566084e +28"', '"1.9807040628566084e+28"'],
122 ['"-3.961408125713217e+28"', '"-3.961408125713217e+28"', '"3.961408125713217e+28 "', '"3.961408125713217e+28"'],
123 ['"-7.922816251426434e+28"', '"-7.922816251426434e+28"', '"7.922816251426434e+28 "', '"7.922816251426434e+28"'],
124 ['"-1.5845632502852868e+29"', '"-1.5845632502852868e+29"', '"1.5845632502852868e +29"', '"1.5845632502852868e+29"'],
125 ['"-3.1691265005705735e+29"', '"-3.1691265005705735e+29"', '"3.1691265005705735e +29"', '"3.1691265005705735e+29"'],
126 ['"-6.338253001141147e+29"', '"-6.338253001141147e+29"', '"6.338253001141147e+29 "', '"6.338253001141147e+29"'],
127 ['"-1.2676506002282294e+30"', '"-1.2676506002282294e+30"', '"1.2676506002282294e +30"', '"1.2676506002282294e+30"'],
128 ['"-2.535301200456459e+30"', '"-2.535301200456459e+30"', '"2.535301200456459e+30 "', '"2.535301200456459e+30"'],
129 ['"-5.070602400912918e+30"', '"-5.070602400912918e+30"', '"5.070602400912918e+30 "', '"5.070602400912918e+30"'],
130 ['"-1.0141204801825835e+31"', '"-1.0141204801825835e+31"', '"1.0141204801825835e +31"', '"1.0141204801825835e+31"'],
131 ['"-2.028240960365167e+31"', '"-2.028240960365167e+31"', '"2.028240960365167e+31 "', '"2.028240960365167e+31"'],
132 ['"-4.056481920730334e+31"', '"-4.056481920730334e+31"', '"4.056481920730334e+31 "', '"4.056481920730334e+31"'],
133 ['"-8.112963841460668e+31"', '"-8.112963841460668e+31"', '"8.112963841460668e+31 "', '"8.112963841460668e+31"'],
134 ['"-1.6225927682921336e+32"', '"-1.6225927682921336e+32"', '"1.6225927682921336e +32"', '"1.6225927682921336e+32"'],
135 ['"-3.2451855365842673e+32"', '"-3.2451855365842673e+32"', '"3.2451855365842673e +32"', '"3.2451855365842673e+32"'],
136 ['"-6.490371073168535e+32"', '"-6.490371073168535e+32"', '"6.490371073168535e+32 "', '"6.490371073168535e+32"'],
137 ['"-1.298074214633707e+33"', '"-1.298074214633707e+33"', '"1.298074214633707e+33 "', '"1.298074214633707e+33"'],
138 ['"-2.596148429267414e+33"', '"-2.596148429267414e+33"', '"2.596148429267414e+33 "', '"2.596148429267414e+33"'],
139 ['"-5.192296858534828e+33"', '"-5.192296858534828e+33"', '"5.192296858534828e+33 "', '"5.192296858534828e+33"'],
140 ['"-1.0384593717069655e+34"', '"-1.0384593717069655e+34"', '"1.0384593717069655e +34"', '"1.0384593717069655e+34"'],
141 ['"-2.076918743413931e+34"', '"-2.076918743413931e+34"', '"2.076918743413931e+34 "', '"2.076918743413931e+34"'],
142 ['"-4.153837486827862e+34"', '"-4.153837486827862e+34"', '"4.153837486827862e+34 "', '"4.153837486827862e+34"'],
143 ['"-8.307674973655724e+34"', '"-8.307674973655724e+34"', '"8.307674973655724e+34 "', '"8.307674973655724e+34"'],
144 ['"-1.661534994731145e+35"', '"-1.661534994731145e+35"', '"1.661534994731145e+35 "', '"1.661534994731145e+35"'],
145 ['"-3.32306998946229e+35"', '"-3.32306998946229e+35"', '"3.32306998946229e+35"', '"3.32306998946229e+35"'],
146 ['"-6.64613997892458e+35"', '"-6.64613997892458e+35"', '"6.64613997892458e+35"', '"6.64613997892458e+35"'],
147 ['"-1.329227995784916e+36"', '"-1.329227995784916e+36"', '"1.329227995784916e+36 "', '"1.329227995784916e+36"'],
148 ['"-2.658455991569832e+36"', '"-2.658455991569832e+36"', '"2.658455991569832e+36 "', '"2.658455991569832e+36"'],
149 ['"-5.316911983139664e+36"', '"-5.316911983139664e+36"', '"5.316911983139664e+36 "', '"5.316911983139664e+36"'],
150 ['"-1.0633823966279327e+37"', '"-1.0633823966279327e+37"', '"1.0633823966279327e +37"', '"1.0633823966279327e+37"'],
151 ['"-2.1267647932558654e+37"', '"-2.1267647932558654e+37"', '"2.1267647932558654e +37"', '"2.1267647932558654e+37"'],
152 ['"-4.253529586511731e+37"', '"-4.253529586511731e+37"', '"4.253529586511731e+37 "', '"4.253529586511731e+37"'],
153 ['"-8.507059173023462e+37"', '"-8.507059173023462e+37"', '"8.507059173023462e+37 "', '"8.507059173023462e+37"'],
154 ['"-1.7014118346046923e+38"', '"-1.7014118346046923e+38"', '"1.7014118346046923e +38"', '"1.7014118346046923e+38"']
155 ];
156
157 for (var valueBits = 8; valueBits <= 128; valueBits++) {
158 debug("bits used to store value: " + valueBits);
159 var max = Math.pow(2, valueBits - 1) - 1;
160 var min = -Math.pow(2, valueBits - 1);
161 shouldBe("min.toString()", answers[valueBits-8][0]);
162 shouldBe("(min - 1).toString()", answers[valueBits-8][1]);
163 shouldBe("max.toString()", answers[valueBits-8][2]);
164 shouldBe("(max + 1).toString()", answers[valueBits-8][3]);
165 }
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