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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/codegen.h" | 5 #include "src/codegen.h" |
| 6 #include "src/deoptimizer.h" | 6 #include "src/deoptimizer.h" |
| 7 #include "src/full-codegen/full-codegen.h" | 7 #include "src/full-codegen/full-codegen.h" |
| 8 #include "src/register-configuration.h" | 8 #include "src/register-configuration.h" |
| 9 #include "src/safepoint-table.h" | 9 #include "src/safepoint-table.h" |
| 10 | 10 |
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| 78 DCHECK(prev_call_address == NULL || | 78 DCHECK(prev_call_address == NULL || |
| 79 call_address >= prev_call_address + patch_size()); | 79 call_address >= prev_call_address + patch_size()); |
| 80 DCHECK(call_address + patch_size() <= code->instruction_end()); | 80 DCHECK(call_address + patch_size() <= code->instruction_end()); |
| 81 #ifdef DEBUG | 81 #ifdef DEBUG |
| 82 prev_call_address = call_address; | 82 prev_call_address = call_address; |
| 83 #endif | 83 #endif |
| 84 } | 84 } |
| 85 } | 85 } |
| 86 | 86 |
| 87 | 87 |
| 88 void Deoptimizer::FillInputFrame(Address tos, JavaScriptFrame* frame) { | |
| 89 // Set the register values. The values are not important as there are no | |
| 90 // callee saved registers in JavaScript frames, so all registers are | |
| 91 // spilled. Registers fp and sp are set to the correct values though. | |
| 92 | |
| 93 for (int i = 0; i < Register::kNumRegisters; i++) { | |
| 94 input_->SetRegister(i, i * 4); | |
| 95 } | |
| 96 input_->SetRegister(sp.code(), reinterpret_cast<intptr_t>(frame->sp())); | |
| 97 input_->SetRegister(fp.code(), reinterpret_cast<intptr_t>(frame->fp())); | |
| 98 for (int i = 0; i < DoubleRegister::kMaxNumRegisters; i++) { | |
| 99 input_->SetDoubleRegister(i, 0.0); | |
| 100 } | |
| 101 | |
| 102 // Fill the frame content from the actual data on the frame. | |
| 103 for (unsigned i = 0; i < input_->GetFrameSize(); i += kPointerSize) { | |
| 104 input_->SetFrameSlot(i, Memory::uint32_at(tos + i)); | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 | |
| 109 void Deoptimizer::SetPlatformCompiledStubRegisters( | 88 void Deoptimizer::SetPlatformCompiledStubRegisters( |
| 110 FrameDescription* output_frame, CodeStubDescriptor* descriptor) { | 89 FrameDescription* output_frame, CodeStubDescriptor* descriptor) { |
| 111 ApiFunction function(descriptor->deoptimization_handler()); | 90 ApiFunction function(descriptor->deoptimization_handler()); |
| 112 ExternalReference xref(&function, ExternalReference::BUILTIN_CALL, isolate_); | 91 ExternalReference xref(&function, ExternalReference::BUILTIN_CALL, isolate_); |
| 113 intptr_t handler = reinterpret_cast<intptr_t>(xref.address()); | 92 intptr_t handler = reinterpret_cast<intptr_t>(xref.address()); |
| 114 int params = descriptor->GetHandlerParameterCount(); | 93 int params = descriptor->GetHandlerParameterCount(); |
| 115 output_frame->SetRegister(r0.code(), params); | 94 output_frame->SetRegister(r0.code(), params); |
| 116 output_frame->SetRegister(r1.code(), handler); | 95 output_frame->SetRegister(r1.code(), handler); |
| 117 } | 96 } |
| 118 | 97 |
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| 356 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) { | 335 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) { |
| 357 DCHECK(FLAG_enable_embedded_constant_pool); | 336 DCHECK(FLAG_enable_embedded_constant_pool); |
| 358 SetFrameSlot(offset, value); | 337 SetFrameSlot(offset, value); |
| 359 } | 338 } |
| 360 | 339 |
| 361 | 340 |
| 362 #undef __ | 341 #undef __ |
| 363 | 342 |
| 364 } // namespace internal | 343 } // namespace internal |
| 365 } // namespace v8 | 344 } // namespace v8 |
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