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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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| 48 void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const { | 48 void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const { |
| 49 masm->LeaveFrame(StackFrame::INTERNAL); | 49 masm->LeaveFrame(StackFrame::INTERNAL); |
| 50 ASSERT(masm->has_frame()); | 50 ASSERT(masm->has_frame()); |
| 51 masm->set_has_frame(false); | 51 masm->set_has_frame(false); |
| 52 } | 52 } |
| 53 | 53 |
| 54 | 54 |
| 55 #define __ masm. | 55 #define __ masm. |
| 56 | 56 |
| 57 | 57 |
| 58 UnaryMathFunction CreateTranscendentalFunction(TranscendentalCache::Type type) { | |
| 59 size_t actual_size; | |
| 60 // Allocate buffer in executable space. | |
| 61 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, | |
| 62 &actual_size, | |
| 63 true)); | |
| 64 if (buffer == NULL) { | |
| 65 // Fallback to library function if function cannot be created. | |
| 66 switch (type) { | |
| 67 case TranscendentalCache::LOG: return &log; | |
| 68 default: UNIMPLEMENTED(); | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); | |
| 73 // xmm0: raw double input. | |
| 74 // Move double input into registers. | |
| 75 __ push(rbx); | |
| 76 __ push(rdi); | |
| 77 __ movq(rbx, xmm0); | |
| 78 __ push(rbx); | |
| 79 __ fld_d(Operand(rsp, 0)); | |
| 80 TranscendentalCacheStub::GenerateOperation(&masm, type); | |
| 81 // The return value is expected to be in xmm0. | |
| 82 __ fstp_d(Operand(rsp, 0)); | |
| 83 __ pop(rbx); | |
| 84 __ movq(xmm0, rbx); | |
| 85 __ pop(rdi); | |
| 86 __ pop(rbx); | |
| 87 __ Ret(); | |
| 88 | |
| 89 CodeDesc desc; | |
| 90 masm.GetCode(&desc); | |
| 91 ASSERT(!RelocInfo::RequiresRelocation(desc)); | |
| 92 | |
| 93 CPU::FlushICache(buffer, actual_size); | |
| 94 OS::ProtectCode(buffer, actual_size); | |
| 95 return FUNCTION_CAST<UnaryMathFunction>(buffer); | |
| 96 } | |
| 97 | |
| 98 | |
| 99 UnaryMathFunction CreateExpFunction() { | 58 UnaryMathFunction CreateExpFunction() { |
| 100 if (!FLAG_fast_math) return &exp; | 59 if (!FLAG_fast_math) return &exp; |
| 101 size_t actual_size; | 60 size_t actual_size; |
| 102 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, &actual_size, true)); | 61 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, &actual_size, true)); |
| 103 if (buffer == NULL) return &exp; | 62 if (buffer == NULL) return &exp; |
| 104 ExternalReference::InitializeMathExpData(); | 63 ExternalReference::InitializeMathExpData(); |
| 105 | 64 |
| 106 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); | 65 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); |
| 107 // xmm0: raw double input. | 66 // xmm0: raw double input. |
| 108 XMMRegister input = xmm0; | 67 XMMRegister input = xmm0; |
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| 751 // argument_count_reg_ * times_pointer_size + (receiver - 1) * kPointerSize. | 710 // argument_count_reg_ * times_pointer_size + (receiver - 1) * kPointerSize. |
| 752 return Operand(base_reg_, argument_count_reg_, times_pointer_size, | 711 return Operand(base_reg_, argument_count_reg_, times_pointer_size, |
| 753 displacement_to_last_argument + (receiver - 1 - index) * kPointerSize); | 712 displacement_to_last_argument + (receiver - 1 - index) * kPointerSize); |
| 754 } | 713 } |
| 755 } | 714 } |
| 756 | 715 |
| 757 | 716 |
| 758 } } // namespace v8::internal | 717 } } // namespace v8::internal |
| 759 | 718 |
| 760 #endif // V8_TARGET_ARCH_X64 | 719 #endif // V8_TARGET_ARCH_X64 |
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