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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 #include <stdlib.h> | 28 #include <stdlib.h> |
29 | 29 |
| 30 #include <limits> |
| 31 |
30 #include "v8.h" | 32 #include "v8.h" |
31 | 33 |
32 #include "cctest.h" | 34 #include "cctest.h" |
33 #include "code-stubs.h" | 35 #include "code-stubs.h" |
34 #include "factory.h" | 36 #include "factory.h" |
35 #include "macro-assembler.h" | 37 #include "macro-assembler.h" |
36 #include "platform.h" | 38 #include "platform.h" |
37 | 39 |
38 #if __GNUC__ | 40 #if __GNUC__ |
39 #define STDCALL __attribute__((stdcall)) | 41 #define STDCALL __attribute__((stdcall)) |
40 #else | 42 #else |
41 #define STDCALL __stdcall | 43 #define STDCALL __stdcall |
42 #endif | 44 #endif |
43 | 45 |
44 using namespace v8::internal; | 46 using namespace v8::internal; |
45 | 47 |
46 | 48 |
47 typedef int32_t STDCALL (*ConvertDToIFunc)(double input); | 49 typedef int32_t STDCALL ConvertDToIFuncType(double input); |
| 50 typedef ConvertDToIFuncType* ConvertDToIFunc; |
48 | 51 |
49 | 52 |
50 int STDCALL ConvertDToICVersion(double d) { | 53 int STDCALL ConvertDToICVersion(double d) { |
51 Address double_ptr = reinterpret_cast<Address>(&d); | 54 Address double_ptr = reinterpret_cast<Address>(&d); |
52 uint32_t exponent_bits = Memory::uint32_at(double_ptr + kDoubleSize / 2); | 55 uint32_t exponent_bits = Memory::uint32_at(double_ptr + kDoubleSize / 2); |
53 int32_t shifted_mask = static_cast<int32_t>(Double::kExponentMask >> 32); | 56 int32_t shifted_mask = static_cast<int32_t>(Double::kExponentMask >> 32); |
54 int32_t exponent = (((exponent_bits & shifted_mask) >> | 57 int32_t exponent = (((exponent_bits & shifted_mask) >> |
55 (Double::kPhysicalSignificandSize - 32)) - | 58 (Double::kPhysicalSignificandSize - 32)) - |
56 HeapNumber::kExponentBias); | 59 HeapNumber::kExponentBias); |
57 uint32_t unsigned_exponent = static_cast<uint32_t>(exponent); | 60 uint32_t unsigned_exponent = static_cast<uint32_t>(exponent); |
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72 if (static_cast<int32_t>(exponent_bits) < 0) { | 75 if (static_cast<int32_t>(exponent_bits) < 0) { |
73 return (0 - result); | 76 return (0 - result); |
74 } else { | 77 } else { |
75 return result; | 78 return result; |
76 } | 79 } |
77 } | 80 } |
78 | 81 |
79 | 82 |
80 void RunOneTruncationTestWithTest(ConvertDToIFunc func, | 83 void RunOneTruncationTestWithTest(ConvertDToIFunc func, |
81 double from, | 84 double from, |
82 int64_t to) { | 85 double raw) { |
| 86 uint64_t to = static_cast<int64_t>(raw); |
83 int result = (*func)(from); | 87 int result = (*func)(from); |
84 CHECK_EQ(static_cast<int>(to), result); | 88 CHECK_EQ(static_cast<int>(to), result); |
85 } | 89 } |
86 | 90 |
87 | 91 |
88 // #define NaN and Infinity so that it's possible to cut-and-paste these tests | 92 // #define NaN and Infinity so that it's possible to cut-and-paste these tests |
89 // directly to a .js file and run them. | 93 // directly to a .js file and run them. |
90 #define NaN NAN | 94 #define NaN (OS::nan_value()) |
91 #define Infinity INFINITY | 95 #define Infinity (std::numeric_limits<double>::infinity()) |
92 #define RunOneTruncationTest(p1, p2) RunOneTruncationTestWithTest(func, p1, p2) | 96 #define RunOneTruncationTest(p1, p2) RunOneTruncationTestWithTest(func, p1, p2) |
93 | 97 |
94 void RunAllTruncationTests(ConvertDToIFunc func) { | 98 void RunAllTruncationTests(ConvertDToIFunc func) { |
95 RunOneTruncationTest(0, 0); | 99 RunOneTruncationTest(0, 0); |
96 RunOneTruncationTest(0.5, 0); | 100 RunOneTruncationTest(0.5, 0); |
97 RunOneTruncationTest(-0.5, 0); | 101 RunOneTruncationTest(-0.5, 0); |
98 RunOneTruncationTest(1.5, 1); | 102 RunOneTruncationTest(1.5, 1); |
99 RunOneTruncationTest(-1.5, -1); | 103 RunOneTruncationTest(-1.5, -1); |
100 RunOneTruncationTest(5.5, 5); | 104 RunOneTruncationTest(5.5, 5); |
101 RunOneTruncationTest(-5.0, -5); | 105 RunOneTruncationTest(-5.0, -5); |
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265 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, esi, edx)); | 269 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, esi, edx)); |
266 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, esi, edi)); | 270 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, esi, edi)); |
267 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, esi, esi)); | 271 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, esi, esi)); |
268 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, eax)); | 272 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, eax)); |
269 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, ebx)); | 273 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, ebx)); |
270 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, ecx)); | 274 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, ecx)); |
271 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, edx)); | 275 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, edx)); |
272 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, edi)); | 276 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, edi)); |
273 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, esi)); | 277 RunAllTruncationTests(MakeConvertDToIFuncTrampoline(isolate, edi, esi)); |
274 } | 278 } |
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