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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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1103 __ subsd(result, double_scratch); | 1103 __ subsd(result, double_scratch); |
1104 __ add(temp1, Immediate(0x1ff800)); | 1104 __ add(temp1, Immediate(0x1ff800)); |
1105 __ addsd(result, ExpConstant(8)); | 1105 __ addsd(result, ExpConstant(8)); |
1106 __ and_(temp2, Immediate(0x7ff)); | 1106 __ and_(temp2, Immediate(0x7ff)); |
1107 __ shr(temp1, 11); | 1107 __ shr(temp1, 11); |
1108 __ shl(temp1, 20); | 1108 __ shl(temp1, 20); |
1109 __ movd(input, temp1); | 1109 __ movd(input, temp1); |
1110 __ pshufd(input, input, static_cast<uint8_t>(0xe1)); // Order: 11 10 00 01 | 1110 __ pshufd(input, input, static_cast<uint8_t>(0xe1)); // Order: 11 10 00 01 |
1111 __ movsd(double_scratch, Operand::StaticArray( | 1111 __ movsd(double_scratch, Operand::StaticArray( |
1112 temp2, times_8, ExternalReference::math_exp_log_table())); | 1112 temp2, times_8, ExternalReference::math_exp_log_table())); |
1113 __ por(input, double_scratch); | 1113 __ orps(input, double_scratch); |
1114 __ mulsd(result, input); | 1114 __ mulsd(result, input); |
1115 __ bind(&done); | 1115 __ bind(&done); |
1116 } | 1116 } |
1117 | 1117 |
1118 #undef __ | 1118 #undef __ |
1119 | 1119 |
1120 | 1120 |
1121 static byte* GetNoCodeAgeSequence(uint32_t* length) { | 1121 static byte* GetNoCodeAgeSequence(uint32_t* length) { |
1122 static bool initialized = false; | 1122 static bool initialized = false; |
1123 static byte sequence[kNoCodeAgeSequenceLength]; | 1123 static byte sequence[kNoCodeAgeSequenceLength]; |
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1174 Code* stub = GetCodeAgeStub(isolate, age, parity); | 1174 Code* stub = GetCodeAgeStub(isolate, age, parity); |
1175 CodePatcher patcher(sequence, young_length); | 1175 CodePatcher patcher(sequence, young_length); |
1176 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); | 1176 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); |
1177 } | 1177 } |
1178 } | 1178 } |
1179 | 1179 |
1180 | 1180 |
1181 } } // namespace v8::internal | 1181 } } // namespace v8::internal |
1182 | 1182 |
1183 #endif // V8_TARGET_ARCH_IA32 | 1183 #endif // V8_TARGET_ARCH_IA32 |
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