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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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73 call_address >= prev_call_address + patch_size()); | 73 call_address >= prev_call_address + patch_size()); |
74 DCHECK(call_address + patch_size() <= code->instruction_end()); | 74 DCHECK(call_address + patch_size() <= code->instruction_end()); |
75 | 75 |
76 #ifdef DEBUG | 76 #ifdef DEBUG |
77 prev_call_address = call_address; | 77 prev_call_address = call_address; |
78 #endif | 78 #endif |
79 } | 79 } |
80 } | 80 } |
81 | 81 |
82 | 82 |
83 void Deoptimizer::FillInputFrame(Address tos, JavaScriptFrame* frame) { | |
84 // Set the register values. The values are not important as there are no | |
85 // callee saved registers in JavaScript frames, so all registers are | |
86 // spilled. Registers fp and sp are set to the correct values though. | |
87 | |
88 for (int i = 0; i < Register::kNumRegisters; i++) { | |
89 input_->SetRegister(i, i * 4); | |
90 } | |
91 input_->SetRegister(sp.code(), reinterpret_cast<intptr_t>(frame->sp())); | |
92 input_->SetRegister(fp.code(), reinterpret_cast<intptr_t>(frame->fp())); | |
93 for (int i = 0; i < DoubleRegister::kMaxNumRegisters; i++) { | |
94 input_->SetDoubleRegister(i, 0.0); | |
95 } | |
96 | |
97 // Fill the frame content from the actual data on the frame. | |
98 for (unsigned i = 0; i < input_->GetFrameSize(); i += kPointerSize) { | |
99 input_->SetFrameSlot(i, Memory::uint64_at(tos + i)); | |
100 } | |
101 } | |
102 | |
103 | |
104 void Deoptimizer::SetPlatformCompiledStubRegisters( | 83 void Deoptimizer::SetPlatformCompiledStubRegisters( |
105 FrameDescription* output_frame, CodeStubDescriptor* descriptor) { | 84 FrameDescription* output_frame, CodeStubDescriptor* descriptor) { |
106 ApiFunction function(descriptor->deoptimization_handler()); | 85 ApiFunction function(descriptor->deoptimization_handler()); |
107 ExternalReference xref(&function, ExternalReference::BUILTIN_CALL, isolate_); | 86 ExternalReference xref(&function, ExternalReference::BUILTIN_CALL, isolate_); |
108 intptr_t handler = reinterpret_cast<intptr_t>(xref.address()); | 87 intptr_t handler = reinterpret_cast<intptr_t>(xref.address()); |
109 int params = descriptor->GetHandlerParameterCount(); | 88 int params = descriptor->GetHandlerParameterCount(); |
110 output_frame->SetRegister(a0.code(), params); | 89 output_frame->SetRegister(a0.code(), params); |
111 output_frame->SetRegister(a1.code(), handler); | 90 output_frame->SetRegister(a1.code(), handler); |
112 } | 91 } |
113 | 92 |
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402 // No embedded constant pool support. | 381 // No embedded constant pool support. |
403 UNREACHABLE(); | 382 UNREACHABLE(); |
404 } | 383 } |
405 | 384 |
406 | 385 |
407 #undef __ | 386 #undef __ |
408 | 387 |
409 | 388 |
410 } // namespace internal | 389 } // namespace internal |
411 } // namespace v8 | 390 } // namespace v8 |
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