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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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 |
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| 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 "src/v8.h" | 30 #include "src/v8.h" |
| 31 | 31 |
| 32 #include "src/base/platform/platform.h" |
| 32 #include "src/diy-fp.h" | 33 #include "src/diy-fp.h" |
| 33 #include "src/double.h" | 34 #include "src/double.h" |
| 34 #include "src/platform.h" | |
| 35 #include "test/cctest/cctest.h" | 35 #include "test/cctest/cctest.h" |
| 36 | 36 |
| 37 | 37 |
| 38 using namespace v8::internal; | 38 using namespace v8::internal; |
| 39 | 39 |
| 40 | 40 |
| 41 TEST(Uint64Conversions) { | 41 TEST(Uint64Conversions) { |
| 42 // Start by checking the byte-order. | 42 // Start by checking the byte-order. |
| 43 uint64_t ordered = V8_2PART_UINT64_C(0x01234567, 89ABCDEF); | 43 uint64_t ordered = V8_2PART_UINT64_C(0x01234567, 89ABCDEF); |
| 44 CHECK_EQ(3512700564088504e-318, Double(ordered).value()); | 44 CHECK_EQ(3512700564088504e-318, Double(ordered).value()); |
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| 98 uint64_t bits = V8_2PART_UINT64_C(0x000FFFFF, FFFFFFFF); | 98 uint64_t bits = V8_2PART_UINT64_C(0x000FFFFF, FFFFFFFF); |
| 99 CHECK(Double(bits).IsDenormal()); | 99 CHECK(Double(bits).IsDenormal()); |
| 100 bits = V8_2PART_UINT64_C(0x00100000, 00000000); | 100 bits = V8_2PART_UINT64_C(0x00100000, 00000000); |
| 101 CHECK(!Double(bits).IsDenormal()); | 101 CHECK(!Double(bits).IsDenormal()); |
| 102 } | 102 } |
| 103 | 103 |
| 104 | 104 |
| 105 TEST(IsSpecial) { | 105 TEST(IsSpecial) { |
| 106 CHECK(Double(V8_INFINITY).IsSpecial()); | 106 CHECK(Double(V8_INFINITY).IsSpecial()); |
| 107 CHECK(Double(-V8_INFINITY).IsSpecial()); | 107 CHECK(Double(-V8_INFINITY).IsSpecial()); |
| 108 CHECK(Double(OS::nan_value()).IsSpecial()); | 108 CHECK(Double(v8::base::OS::nan_value()).IsSpecial()); |
| 109 uint64_t bits = V8_2PART_UINT64_C(0xFFF12345, 00000000); | 109 uint64_t bits = V8_2PART_UINT64_C(0xFFF12345, 00000000); |
| 110 CHECK(Double(bits).IsSpecial()); | 110 CHECK(Double(bits).IsSpecial()); |
| 111 // Denormals are not special: | 111 // Denormals are not special: |
| 112 CHECK(!Double(5e-324).IsSpecial()); | 112 CHECK(!Double(5e-324).IsSpecial()); |
| 113 CHECK(!Double(-5e-324).IsSpecial()); | 113 CHECK(!Double(-5e-324).IsSpecial()); |
| 114 // And some random numbers: | 114 // And some random numbers: |
| 115 CHECK(!Double(0.0).IsSpecial()); | 115 CHECK(!Double(0.0).IsSpecial()); |
| 116 CHECK(!Double(-0.0).IsSpecial()); | 116 CHECK(!Double(-0.0).IsSpecial()); |
| 117 CHECK(!Double(1.0).IsSpecial()); | 117 CHECK(!Double(1.0).IsSpecial()); |
| 118 CHECK(!Double(-1.0).IsSpecial()); | 118 CHECK(!Double(-1.0).IsSpecial()); |
| 119 CHECK(!Double(1000000.0).IsSpecial()); | 119 CHECK(!Double(1000000.0).IsSpecial()); |
| 120 CHECK(!Double(-1000000.0).IsSpecial()); | 120 CHECK(!Double(-1000000.0).IsSpecial()); |
| 121 CHECK(!Double(1e23).IsSpecial()); | 121 CHECK(!Double(1e23).IsSpecial()); |
| 122 CHECK(!Double(-1e23).IsSpecial()); | 122 CHECK(!Double(-1e23).IsSpecial()); |
| 123 CHECK(!Double(1.7976931348623157e308).IsSpecial()); | 123 CHECK(!Double(1.7976931348623157e308).IsSpecial()); |
| 124 CHECK(!Double(-1.7976931348623157e308).IsSpecial()); | 124 CHECK(!Double(-1.7976931348623157e308).IsSpecial()); |
| 125 } | 125 } |
| 126 | 126 |
| 127 | 127 |
| 128 TEST(IsInfinite) { | 128 TEST(IsInfinite) { |
| 129 CHECK(Double(V8_INFINITY).IsInfinite()); | 129 CHECK(Double(V8_INFINITY).IsInfinite()); |
| 130 CHECK(Double(-V8_INFINITY).IsInfinite()); | 130 CHECK(Double(-V8_INFINITY).IsInfinite()); |
| 131 CHECK(!Double(OS::nan_value()).IsInfinite()); | 131 CHECK(!Double(v8::base::OS::nan_value()).IsInfinite()); |
| 132 CHECK(!Double(0.0).IsInfinite()); | 132 CHECK(!Double(0.0).IsInfinite()); |
| 133 CHECK(!Double(-0.0).IsInfinite()); | 133 CHECK(!Double(-0.0).IsInfinite()); |
| 134 CHECK(!Double(1.0).IsInfinite()); | 134 CHECK(!Double(1.0).IsInfinite()); |
| 135 CHECK(!Double(-1.0).IsInfinite()); | 135 CHECK(!Double(-1.0).IsInfinite()); |
| 136 uint64_t min_double64 = V8_2PART_UINT64_C(0x00000000, 00000001); | 136 uint64_t min_double64 = V8_2PART_UINT64_C(0x00000000, 00000001); |
| 137 CHECK(!Double(min_double64).IsInfinite()); | 137 CHECK(!Double(min_double64).IsInfinite()); |
| 138 } | 138 } |
| 139 | 139 |
| 140 | 140 |
| 141 TEST(Sign) { | 141 TEST(Sign) { |
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| 222 Double d0(-4e-324); | 222 Double d0(-4e-324); |
| 223 Double d1(d0.NextDouble()); | 223 Double d1(d0.NextDouble()); |
| 224 Double d2(d1.NextDouble()); | 224 Double d2(d1.NextDouble()); |
| 225 CHECK_EQ(-0.0, d1.value()); | 225 CHECK_EQ(-0.0, d1.value()); |
| 226 CHECK_EQ(0.0, d2.value()); | 226 CHECK_EQ(0.0, d2.value()); |
| 227 CHECK_EQ(4e-324, d2.NextDouble()); | 227 CHECK_EQ(4e-324, d2.NextDouble()); |
| 228 CHECK_EQ(-1.7976931348623157e308, Double(-V8_INFINITY).NextDouble()); | 228 CHECK_EQ(-1.7976931348623157e308, Double(-V8_INFINITY).NextDouble()); |
| 229 CHECK_EQ(V8_INFINITY, | 229 CHECK_EQ(V8_INFINITY, |
| 230 Double(V8_2PART_UINT64_C(0x7fefffff, ffffffff)).NextDouble()); | 230 Double(V8_2PART_UINT64_C(0x7fefffff, ffffffff)).NextDouble()); |
| 231 } | 231 } |
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