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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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2186 DCHECK_NE(GetHeap()->fixed_cow_array_map(), map()); | 2186 DCHECK_NE(GetHeap()->fixed_cow_array_map(), map()); |
2187 DCHECK_EQ(FIXED_ARRAY_TYPE, map()->instance_type()); | 2187 DCHECK_EQ(FIXED_ARRAY_TYPE, map()->instance_type()); |
2188 DCHECK(index >= 0 && index < this->length()); | 2188 DCHECK(index >= 0 && index < this->length()); |
2189 int offset = kHeaderSize + index * kPointerSize; | 2189 int offset = kHeaderSize + index * kPointerSize; |
2190 WRITE_FIELD(this, offset, value); | 2190 WRITE_FIELD(this, offset, value); |
2191 WRITE_BARRIER(GetHeap(), this, offset, value); | 2191 WRITE_BARRIER(GetHeap(), this, offset, value); |
2192 } | 2192 } |
2193 | 2193 |
2194 | 2194 |
2195 inline bool FixedDoubleArray::is_the_hole_nan(double value) { | 2195 inline bool FixedDoubleArray::is_the_hole_nan(double value) { |
2196 return BitCast<uint64_t, double>(value) == kHoleNanInt64; | 2196 return bit_cast<uint64_t, double>(value) == kHoleNanInt64; |
2197 } | 2197 } |
2198 | 2198 |
2199 | 2199 |
2200 inline double FixedDoubleArray::hole_nan_as_double() { | 2200 inline double FixedDoubleArray::hole_nan_as_double() { |
2201 return BitCast<double, uint64_t>(kHoleNanInt64); | 2201 return bit_cast<double, uint64_t>(kHoleNanInt64); |
2202 } | 2202 } |
2203 | 2203 |
2204 | 2204 |
2205 inline double FixedDoubleArray::canonical_not_the_hole_nan_as_double() { | 2205 inline double FixedDoubleArray::canonical_not_the_hole_nan_as_double() { |
2206 DCHECK(BitCast<uint64_t>(base::OS::nan_value()) != kHoleNanInt64); | 2206 DCHECK(bit_cast<uint64_t>(base::OS::nan_value()) != kHoleNanInt64); |
2207 DCHECK((BitCast<uint64_t>(base::OS::nan_value()) >> 32) != kHoleNanUpper32); | 2207 DCHECK((bit_cast<uint64_t>(base::OS::nan_value()) >> 32) != kHoleNanUpper32); |
2208 return base::OS::nan_value(); | 2208 return base::OS::nan_value(); |
2209 } | 2209 } |
2210 | 2210 |
2211 | 2211 |
2212 double FixedDoubleArray::get_scalar(int index) { | 2212 double FixedDoubleArray::get_scalar(int index) { |
2213 DCHECK(map() != GetHeap()->fixed_cow_array_map() && | 2213 DCHECK(map() != GetHeap()->fixed_cow_array_map() && |
2214 map() != GetHeap()->fixed_array_map()); | 2214 map() != GetHeap()->fixed_array_map()); |
2215 DCHECK(index >= 0 && index < this->length()); | 2215 DCHECK(index >= 0 && index < this->length()); |
2216 double result = READ_DOUBLE_FIELD(this, kHeaderSize + index * kDoubleSize); | 2216 double result = READ_DOUBLE_FIELD(this, kHeaderSize + index * kDoubleSize); |
2217 DCHECK(!is_the_hole_nan(result)); | 2217 DCHECK(!is_the_hole_nan(result)); |
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7247 #undef READ_SHORT_FIELD | 7247 #undef READ_SHORT_FIELD |
7248 #undef WRITE_SHORT_FIELD | 7248 #undef WRITE_SHORT_FIELD |
7249 #undef READ_BYTE_FIELD | 7249 #undef READ_BYTE_FIELD |
7250 #undef WRITE_BYTE_FIELD | 7250 #undef WRITE_BYTE_FIELD |
7251 #undef NOBARRIER_READ_BYTE_FIELD | 7251 #undef NOBARRIER_READ_BYTE_FIELD |
7252 #undef NOBARRIER_WRITE_BYTE_FIELD | 7252 #undef NOBARRIER_WRITE_BYTE_FIELD |
7253 | 7253 |
7254 } } // namespace v8::internal | 7254 } } // namespace v8::internal |
7255 | 7255 |
7256 #endif // V8_OBJECTS_INL_H_ | 7256 #endif // V8_OBJECTS_INL_H_ |
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