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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_ARM64_UTILS_ARM64_H_ | 5 #ifndef V8_ARM64_UTILS_ARM64_H_ |
6 #define V8_ARM64_UTILS_ARM64_H_ | 6 #define V8_ARM64_UTILS_ARM64_H_ |
7 | 7 |
8 #include <cmath> | 8 #include <cmath> |
9 #include "src/v8.h" | 9 #include "src/v8.h" |
10 | 10 |
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81 | 81 |
82 | 82 |
83 template <typename T> | 83 template <typename T> |
84 inline bool IsQuietNaN(T num) { | 84 inline bool IsQuietNaN(T num) { |
85 return std::isnan(num) && !IsSignallingNaN(num); | 85 return std::isnan(num) && !IsSignallingNaN(num); |
86 } | 86 } |
87 | 87 |
88 | 88 |
89 // Convert the NaN in 'num' to a quiet NaN. | 89 // Convert the NaN in 'num' to a quiet NaN. |
90 inline double ToQuietNaN(double num) { | 90 inline double ToQuietNaN(double num) { |
91 ASSERT(std::isnan(num)); | 91 DCHECK(std::isnan(num)); |
92 return rawbits_to_double(double_to_rawbits(num) | kDQuietNanMask); | 92 return rawbits_to_double(double_to_rawbits(num) | kDQuietNanMask); |
93 } | 93 } |
94 | 94 |
95 | 95 |
96 inline float ToQuietNaN(float num) { | 96 inline float ToQuietNaN(float num) { |
97 ASSERT(std::isnan(num)); | 97 DCHECK(std::isnan(num)); |
98 return rawbits_to_float(float_to_rawbits(num) | kSQuietNanMask); | 98 return rawbits_to_float(float_to_rawbits(num) | kSQuietNanMask); |
99 } | 99 } |
100 | 100 |
101 | 101 |
102 // Fused multiply-add. | 102 // Fused multiply-add. |
103 inline double FusedMultiplyAdd(double op1, double op2, double a) { | 103 inline double FusedMultiplyAdd(double op1, double op2, double a) { |
104 return fma(op1, op2, a); | 104 return fma(op1, op2, a); |
105 } | 105 } |
106 | 106 |
107 | 107 |
108 inline float FusedMultiplyAdd(float op1, float op2, float a) { | 108 inline float FusedMultiplyAdd(float op1, float op2, float a) { |
109 return fmaf(op1, op2, a); | 109 return fmaf(op1, op2, a); |
110 } | 110 } |
111 | 111 |
112 } } // namespace v8::internal | 112 } } // namespace v8::internal |
113 | 113 |
114 #endif // V8_ARM64_UTILS_ARM64_H_ | 114 #endif // V8_ARM64_UTILS_ARM64_H_ |
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