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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 #include "src/mips/codegen-mips.h" | 5 #include "src/mips/codegen-mips.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
| 8 | 8 |
| 9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
| 10 #include "src/macro-assembler.h" | 10 #include "src/macro-assembler.h" |
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| 51 temp1, temp2, temp3); | 51 temp1, temp2, temp3); |
| 52 __ Pop(temp3, temp2, temp1); | 52 __ Pop(temp3, temp2, temp1); |
| 53 __ MovToFloatResult(result); | 53 __ MovToFloatResult(result); |
| 54 __ Ret(); | 54 __ Ret(); |
| 55 } | 55 } |
| 56 | 56 |
| 57 CodeDesc desc; | 57 CodeDesc desc; |
| 58 masm.GetCode(&desc); | 58 masm.GetCode(&desc); |
| 59 DCHECK(!RelocInfo::RequiresRelocation(desc)); | 59 DCHECK(!RelocInfo::RequiresRelocation(desc)); |
| 60 | 60 |
| 61 CpuFeatures::FlushICache(buffer, actual_size); | 61 Assembler::FlushICache(isolate, buffer, actual_size); |
| 62 base::OS::ProtectCode(buffer, actual_size); | 62 base::OS::ProtectCode(buffer, actual_size); |
| 63 | 63 |
| 64 #if !defined(USE_SIMULATOR) | 64 #if !defined(USE_SIMULATOR) |
| 65 return FUNCTION_CAST<UnaryMathFunctionWithIsolate>(buffer); | 65 return FUNCTION_CAST<UnaryMathFunctionWithIsolate>(buffer); |
| 66 #else | 66 #else |
| 67 fast_exp_mips_machine_code = buffer; | 67 fast_exp_mips_machine_code = buffer; |
| 68 return &fast_exp_simulator; | 68 return &fast_exp_simulator; |
| 69 #endif | 69 #endif |
| 70 } | 70 } |
| 71 | 71 |
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| 590 __ bne(a0, a3, &ua_smallCopy_loop); | 590 __ bne(a0, a3, &ua_smallCopy_loop); |
| 591 __ sb(v1, MemOperand(a0, -1)); // In delay slot. | 591 __ sb(v1, MemOperand(a0, -1)); // In delay slot. |
| 592 | 592 |
| 593 __ jr(ra); | 593 __ jr(ra); |
| 594 __ nop(); | 594 __ nop(); |
| 595 } | 595 } |
| 596 CodeDesc desc; | 596 CodeDesc desc; |
| 597 masm.GetCode(&desc); | 597 masm.GetCode(&desc); |
| 598 DCHECK(!RelocInfo::RequiresRelocation(desc)); | 598 DCHECK(!RelocInfo::RequiresRelocation(desc)); |
| 599 | 599 |
| 600 CpuFeatures::FlushICache(buffer, actual_size); | 600 Assembler::FlushICacheWithoutIsolate(buffer, actual_size); |
| 601 base::OS::ProtectCode(buffer, actual_size); | 601 base::OS::ProtectCode(buffer, actual_size); |
| 602 return FUNCTION_CAST<MemCopyUint8Function>(buffer); | 602 return FUNCTION_CAST<MemCopyUint8Function>(buffer); |
| 603 #endif | 603 #endif |
| 604 } | 604 } |
| 605 #endif | 605 #endif |
| 606 | 606 |
| 607 UnaryMathFunctionWithIsolate CreateSqrtFunction(Isolate* isolate) { | 607 UnaryMathFunctionWithIsolate CreateSqrtFunction(Isolate* isolate) { |
| 608 #if defined(USE_SIMULATOR) | 608 #if defined(USE_SIMULATOR) |
| 609 return nullptr; | 609 return nullptr; |
| 610 #else | 610 #else |
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| 1234 } | 1234 } |
| 1235 | 1235 |
| 1236 | 1236 |
| 1237 void Code::PatchPlatformCodeAge(Isolate* isolate, | 1237 void Code::PatchPlatformCodeAge(Isolate* isolate, |
| 1238 byte* sequence, | 1238 byte* sequence, |
| 1239 Code::Age age, | 1239 Code::Age age, |
| 1240 MarkingParity parity) { | 1240 MarkingParity parity) { |
| 1241 uint32_t young_length = isolate->code_aging_helper()->young_sequence_length(); | 1241 uint32_t young_length = isolate->code_aging_helper()->young_sequence_length(); |
| 1242 if (age == kNoAgeCodeAge) { | 1242 if (age == kNoAgeCodeAge) { |
| 1243 isolate->code_aging_helper()->CopyYoungSequenceTo(sequence); | 1243 isolate->code_aging_helper()->CopyYoungSequenceTo(sequence); |
| 1244 CpuFeatures::FlushICache(sequence, young_length); | 1244 Assembler::FlushICache(isolate, sequence, young_length); |
| 1245 } else { | 1245 } else { |
| 1246 Code* stub = GetCodeAgeStub(isolate, age, parity); | 1246 Code* stub = GetCodeAgeStub(isolate, age, parity); |
| 1247 CodePatcher patcher(sequence, young_length / Assembler::kInstrSize); | 1247 CodePatcher patcher(sequence, young_length / Assembler::kInstrSize); |
| 1248 // Mark this code sequence for FindPlatformCodeAgeSequence(). | 1248 // Mark this code sequence for FindPlatformCodeAgeSequence(). |
| 1249 patcher.masm()->nop(Assembler::CODE_AGE_MARKER_NOP); | 1249 patcher.masm()->nop(Assembler::CODE_AGE_MARKER_NOP); |
| 1250 // Load the stub address to t9 and call it, | 1250 // Load the stub address to t9 and call it, |
| 1251 // GetCodeAgeAndParity() extracts the stub address from this instruction. | 1251 // GetCodeAgeAndParity() extracts the stub address from this instruction. |
| 1252 patcher.masm()->li( | 1252 patcher.masm()->li( |
| 1253 t9, | 1253 t9, |
| 1254 Operand(reinterpret_cast<uint32_t>(stub->instruction_start())), | 1254 Operand(reinterpret_cast<uint32_t>(stub->instruction_start())), |
| 1255 CONSTANT_SIZE); | 1255 CONSTANT_SIZE); |
| 1256 patcher.masm()->nop(); // Prevent jalr to jal optimization. | 1256 patcher.masm()->nop(); // Prevent jalr to jal optimization. |
| 1257 patcher.masm()->jalr(t9, a0); | 1257 patcher.masm()->jalr(t9, a0); |
| 1258 patcher.masm()->nop(); // Branch delay slot nop. | 1258 patcher.masm()->nop(); // Branch delay slot nop. |
| 1259 patcher.masm()->nop(); // Pad the empty space. | 1259 patcher.masm()->nop(); // Pad the empty space. |
| 1260 } | 1260 } |
| 1261 } | 1261 } |
| 1262 | 1262 |
| 1263 | 1263 |
| 1264 #undef __ | 1264 #undef __ |
| 1265 | 1265 |
| 1266 } // namespace internal | 1266 } // namespace internal |
| 1267 } // namespace v8 | 1267 } // namespace v8 |
| 1268 | 1268 |
| 1269 #endif // V8_TARGET_ARCH_MIPS | 1269 #endif // V8_TARGET_ARCH_MIPS |
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