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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/x64/codegen-x64.h" | 5 #include "src/x64/codegen-x64.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
| 8 | 8 |
| 9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
| 10 #include "src/macro-assembler.h" | 10 #include "src/macro-assembler.h" |
| (...skipping 21 matching lines...) Expand all Loading... |
| 32 #define __ masm. | 32 #define __ masm. |
| 33 | 33 |
| 34 | 34 |
| 35 UnaryMathFunctionWithIsolate CreateExpFunction(Isolate* isolate) { | 35 UnaryMathFunctionWithIsolate CreateExpFunction(Isolate* isolate) { |
| 36 size_t actual_size; | 36 size_t actual_size; |
| 37 byte* buffer = | 37 byte* buffer = |
| 38 static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); | 38 static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); |
| 39 if (buffer == nullptr) return nullptr; | 39 if (buffer == nullptr) return nullptr; |
| 40 ExternalReference::InitializeMathExpData(); | 40 ExternalReference::InitializeMathExpData(); |
| 41 | 41 |
| 42 MacroAssembler masm(nullptr, buffer, static_cast<int>(actual_size)); | 42 MacroAssembler masm(isolate, buffer, static_cast<int>(actual_size), |
| 43 CodeObjectRequired::kNo); |
| 43 // xmm0: raw double input. | 44 // xmm0: raw double input. |
| 44 XMMRegister input = xmm0; | 45 XMMRegister input = xmm0; |
| 45 XMMRegister result = xmm1; | 46 XMMRegister result = xmm1; |
| 46 __ pushq(rax); | 47 __ pushq(rax); |
| 47 __ pushq(rbx); | 48 __ pushq(rbx); |
| 48 | 49 |
| 49 MathExpGenerator::EmitMathExp(&masm, input, result, xmm2, rax, rbx); | 50 MathExpGenerator::EmitMathExp(&masm, input, result, xmm2, rax, rbx); |
| 50 | 51 |
| 51 __ popq(rbx); | 52 __ popq(rbx); |
| 52 __ popq(rax); | 53 __ popq(rax); |
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| 63 } | 64 } |
| 64 | 65 |
| 65 | 66 |
| 66 UnaryMathFunction CreateSqrtFunction() { | 67 UnaryMathFunction CreateSqrtFunction() { |
| 67 size_t actual_size; | 68 size_t actual_size; |
| 68 // Allocate buffer in executable space. | 69 // Allocate buffer in executable space. |
| 69 byte* buffer = | 70 byte* buffer = |
| 70 static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); | 71 static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); |
| 71 if (buffer == NULL) return &std::sqrt; | 72 if (buffer == NULL) return &std::sqrt; |
| 72 | 73 |
| 73 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); | 74 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size), |
| 75 CodeObjectRequired::kNo); |
| 74 // xmm0: raw double input. | 76 // xmm0: raw double input. |
| 75 // Move double input into registers. | 77 // Move double input into registers. |
| 76 __ Sqrtsd(xmm0, xmm0); | 78 __ Sqrtsd(xmm0, xmm0); |
| 77 __ Ret(); | 79 __ Ret(); |
| 78 | 80 |
| 79 CodeDesc desc; | 81 CodeDesc desc; |
| 80 masm.GetCode(&desc); | 82 masm.GetCode(&desc); |
| 81 DCHECK(!RelocInfo::RequiresRelocation(desc)); | 83 DCHECK(!RelocInfo::RequiresRelocation(desc)); |
| 82 | 84 |
| 83 Assembler::FlushICacheWithoutIsolate(buffer, actual_size); | 85 Assembler::FlushICacheWithoutIsolate(buffer, actual_size); |
| 84 base::OS::ProtectCode(buffer, actual_size); | 86 base::OS::ProtectCode(buffer, actual_size); |
| 85 return FUNCTION_CAST<UnaryMathFunction>(buffer); | 87 return FUNCTION_CAST<UnaryMathFunction>(buffer); |
| 86 } | 88 } |
| 87 | 89 |
| 88 | 90 |
| 89 #ifdef _WIN64 | 91 #ifdef _WIN64 |
| 90 typedef double (*ModuloFunction)(double, double); | 92 typedef double (*ModuloFunction)(double, double); |
| 91 // Define custom fmod implementation. | 93 // Define custom fmod implementation. |
| 92 ModuloFunction CreateModuloFunction() { | 94 ModuloFunction CreateModuloFunction() { |
| 93 size_t actual_size; | 95 size_t actual_size; |
| 94 byte* buffer = static_cast<byte*>( | 96 byte* buffer = static_cast<byte*>( |
| 95 base::OS::Allocate(Assembler::kMinimalBufferSize, &actual_size, true)); | 97 base::OS::Allocate(Assembler::kMinimalBufferSize, &actual_size, true)); |
| 96 CHECK(buffer); | 98 CHECK(buffer); |
| 97 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); | 99 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size), |
| 100 CodeObjectRequired::kNo); |
| 98 // Generated code is put into a fixed, unmovable, buffer, and not into | 101 // Generated code is put into a fixed, unmovable, buffer, and not into |
| 99 // the V8 heap. We can't, and don't, refer to any relocatable addresses | 102 // the V8 heap. We can't, and don't, refer to any relocatable addresses |
| 100 // (e.g. the JavaScript nan-object). | 103 // (e.g. the JavaScript nan-object). |
| 101 | 104 |
| 102 // Windows 64 ABI passes double arguments in xmm0, xmm1 and | 105 // Windows 64 ABI passes double arguments in xmm0, xmm1 and |
| 103 // returns result in xmm0. | 106 // returns result in xmm0. |
| 104 // Argument backing space is allocated on the stack above | 107 // Argument backing space is allocated on the stack above |
| 105 // the return address. | 108 // the return address. |
| 106 | 109 |
| 107 // Compute x mod y. | 110 // Compute x mod y. |
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| 719 return Operand(base_reg_, argument_count_reg_, times_pointer_size, | 722 return Operand(base_reg_, argument_count_reg_, times_pointer_size, |
| 720 displacement_to_last_argument + (receiver - 1 - index) * kPointerSize); | 723 displacement_to_last_argument + (receiver - 1 - index) * kPointerSize); |
| 721 } | 724 } |
| 722 } | 725 } |
| 723 | 726 |
| 724 | 727 |
| 725 } // namespace internal | 728 } // namespace internal |
| 726 } // namespace v8 | 729 } // namespace v8 |
| 727 | 730 |
| 728 #endif // V8_TARGET_ARCH_X64 | 731 #endif // V8_TARGET_ARCH_X64 |
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