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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 #if V8_TARGET_ARCH_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/deoptimizer.h" | 8 #include "src/deoptimizer.h" |
9 #include "src/full-codegen/full-codegen.h" | 9 #include "src/full-codegen/full-codegen.h" |
10 #include "src/register-configuration.h" | 10 #include "src/register-configuration.h" |
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81 DCHECK(prev_call_address == NULL || | 81 DCHECK(prev_call_address == NULL || |
82 call_address >= prev_call_address + patch_size()); | 82 call_address >= prev_call_address + patch_size()); |
83 DCHECK(call_address + patch_size() <= code->instruction_end()); | 83 DCHECK(call_address + patch_size() <= code->instruction_end()); |
84 #ifdef DEBUG | 84 #ifdef DEBUG |
85 prev_call_address = call_address; | 85 prev_call_address = call_address; |
86 #endif | 86 #endif |
87 } | 87 } |
88 } | 88 } |
89 | 89 |
90 | 90 |
91 void Deoptimizer::FillInputFrame(Address tos, JavaScriptFrame* frame) { | |
92 // Set the register values. The values are not important as there are no | |
93 // callee saved registers in JavaScript frames, so all registers are | |
94 // spilled. Registers rbp and rsp are set to the correct values though. | |
95 for (int i = 0; i < Register::kNumRegisters; i++) { | |
96 input_->SetRegister(i, i * 4); | |
97 } | |
98 input_->SetRegister(rsp.code(), reinterpret_cast<intptr_t>(frame->sp())); | |
99 input_->SetRegister(rbp.code(), reinterpret_cast<intptr_t>(frame->fp())); | |
100 for (int i = 0; i < DoubleRegister::kMaxNumRegisters; i++) { | |
101 input_->SetDoubleRegister(i, 0.0); | |
102 } | |
103 | |
104 // Fill the frame content from the actual data on the frame. | |
105 for (unsigned i = 0; i < input_->GetFrameSize(); i += kPointerSize) { | |
106 input_->SetFrameSlot(i, Memory::uintptr_at(tos + i)); | |
107 } | |
108 } | |
109 | |
110 | |
111 void Deoptimizer::SetPlatformCompiledStubRegisters( | 91 void Deoptimizer::SetPlatformCompiledStubRegisters( |
112 FrameDescription* output_frame, CodeStubDescriptor* descriptor) { | 92 FrameDescription* output_frame, CodeStubDescriptor* descriptor) { |
113 intptr_t handler = | 93 intptr_t handler = |
114 reinterpret_cast<intptr_t>(descriptor->deoptimization_handler()); | 94 reinterpret_cast<intptr_t>(descriptor->deoptimization_handler()); |
115 int params = descriptor->GetHandlerParameterCount(); | 95 int params = descriptor->GetHandlerParameterCount(); |
116 output_frame->SetRegister(rax.code(), params); | 96 output_frame->SetRegister(rax.code(), params); |
117 output_frame->SetRegister(rbx.code(), handler); | 97 output_frame->SetRegister(rbx.code(), handler); |
118 } | 98 } |
119 | 99 |
120 | 100 |
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353 } | 333 } |
354 | 334 |
355 | 335 |
356 #undef __ | 336 #undef __ |
357 | 337 |
358 | 338 |
359 } // namespace internal | 339 } // namespace internal |
360 } // namespace v8 | 340 } // namespace v8 |
361 | 341 |
362 #endif // V8_TARGET_ARCH_X64 | 342 #endif // V8_TARGET_ARCH_X64 |
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