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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 // 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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3861 __ sdc1(f0, MemOperand(v0, HeapNumber::kValueOffset)); | 3861 __ sdc1(f0, MemOperand(v0, HeapNumber::kValueOffset)); |
3862 __ Addu(v0, v0, kHeapObjectTag); | 3862 __ Addu(v0, v0, kHeapObjectTag); |
3863 __ Ret(); | 3863 __ Ret(); |
3864 } else { | 3864 } else { |
3865 // Allocate a HeapNumber for the result and perform int-to-double | 3865 // Allocate a HeapNumber for the result and perform int-to-double |
3866 // conversion. | 3866 // conversion. |
3867 // The arm version uses a temporary here to save r0, but we don't need to | 3867 // The arm version uses a temporary here to save r0, but we don't need to |
3868 // (a0 is not modified). | 3868 // (a0 is not modified). |
3869 __ LoadRoot(t1, Heap::kHeapNumberMapRootIndex); | 3869 __ LoadRoot(t1, Heap::kHeapNumberMapRootIndex); |
3870 __ AllocateHeapNumber(v0, a3, t0, t1, &slow, TAG_RESULT); | 3870 __ AllocateHeapNumber(v0, a3, t0, t1, &slow, TAG_RESULT); |
3871 Register dst1 = t2; | 3871 Register dst_mantissa = t2; |
3872 Register dst2 = t3; | 3872 Register dst_exponent = t3; |
3873 FloatingPointHelper::Destination dest = | 3873 FloatingPointHelper::Destination dest = |
3874 FloatingPointHelper::kCoreRegisters; | 3874 FloatingPointHelper::kCoreRegisters; |
3875 FloatingPointHelper::ConvertIntToDouble(masm, | 3875 FloatingPointHelper::ConvertIntToDouble(masm, |
3876 value, | 3876 value, |
3877 dest, | 3877 dest, |
3878 f0, | 3878 f0, |
3879 dst1, | 3879 dst_mantissa, |
3880 dst2, | 3880 dst_exponent, |
3881 t1, | 3881 t1, |
3882 f2); | 3882 f2); |
3883 __ sw(dst1, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); | 3883 __ sw(dst_mantissa, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
3884 __ sw(dst2, FieldMemOperand(v0, HeapNumber::kExponentOffset)); | 3884 __ sw(dst_exponent, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
3885 __ Ret(); | 3885 __ Ret(); |
3886 } | 3886 } |
3887 } else if (elements_kind == EXTERNAL_UNSIGNED_INT_ELEMENTS) { | 3887 } else if (elements_kind == EXTERNAL_UNSIGNED_INT_ELEMENTS) { |
3888 // The test is different for unsigned int values. Since we need | 3888 // The test is different for unsigned int values. Since we need |
3889 // the value to be in the range of a positive smi, we can't | 3889 // the value to be in the range of a positive smi, we can't |
3890 // handle either of the top two bits being set in the value. | 3890 // handle either of the top two bits being set in the value. |
3891 if (CpuFeatures::IsSupported(FPU)) { | 3891 if (CpuFeatures::IsSupported(FPU)) { |
3892 CpuFeatures::Scope scope(FPU); | 3892 CpuFeatures::Scope scope(FPU); |
3893 Label pl_box_int; | 3893 Label pl_box_int; |
3894 __ And(t2, value, Operand(0xC0000000)); | 3894 __ And(t2, value, Operand(0xC0000000)); |
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4173 __ addu(a3, a3, t8); | 4173 __ addu(a3, a3, t8); |
4174 // a3: effective address of the double element | 4174 // a3: effective address of the double element |
4175 FloatingPointHelper::Destination destination; | 4175 FloatingPointHelper::Destination destination; |
4176 if (CpuFeatures::IsSupported(FPU)) { | 4176 if (CpuFeatures::IsSupported(FPU)) { |
4177 destination = FloatingPointHelper::kFPURegisters; | 4177 destination = FloatingPointHelper::kFPURegisters; |
4178 } else { | 4178 } else { |
4179 destination = FloatingPointHelper::kCoreRegisters; | 4179 destination = FloatingPointHelper::kCoreRegisters; |
4180 } | 4180 } |
4181 FloatingPointHelper::ConvertIntToDouble( | 4181 FloatingPointHelper::ConvertIntToDouble( |
4182 masm, t1, destination, | 4182 masm, t1, destination, |
4183 f0, t2, t3, // These are: double_dst, dst1, dst2. | 4183 f0, t2, t3, // These are: double_dst, dst_mantissa, dst_exponent. |
4184 t0, f2); // These are: scratch2, single_scratch. | 4184 t0, f2); // These are: scratch2, single_scratch. |
4185 if (destination == FloatingPointHelper::kFPURegisters) { | 4185 if (destination == FloatingPointHelper::kFPURegisters) { |
4186 CpuFeatures::Scope scope(FPU); | 4186 CpuFeatures::Scope scope(FPU); |
4187 __ sdc1(f0, MemOperand(a3, 0)); | 4187 __ sdc1(f0, MemOperand(a3, 0)); |
4188 } else { | 4188 } else { |
4189 __ sw(t2, MemOperand(a3, 0)); | 4189 __ sw(t2, MemOperand(a3, 0)); |
4190 __ sw(t3, MemOperand(a3, Register::kSizeInBytes)); | 4190 __ sw(t3, MemOperand(a3, Register::kSizeInBytes)); |
4191 } | 4191 } |
4192 break; | 4192 break; |
4193 case FAST_ELEMENTS: | 4193 case FAST_ELEMENTS: |
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4894 __ Jump(ic_slow, RelocInfo::CODE_TARGET); | 4894 __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
4895 } | 4895 } |
4896 } | 4896 } |
4897 | 4897 |
4898 | 4898 |
4899 #undef __ | 4899 #undef __ |
4900 | 4900 |
4901 } } // namespace v8::internal | 4901 } } // namespace v8::internal |
4902 | 4902 |
4903 #endif // V8_TARGET_ARCH_MIPS | 4903 #endif // V8_TARGET_ARCH_MIPS |
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