}
-void Deoptimizer::DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
- int frame_index) {
- JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next()));
- unsigned height = iterator->Next();
- unsigned height_in_bytes = height * kPointerSize;
- if (FLAG_trace_deopt) {
- PrintF(" translating arguments adaptor => height=%d\n", height_in_bytes);
- }
-
- unsigned fixed_frame_size = ArgumentsAdaptorFrameConstants::kFrameSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, function);
- output_frame->SetFrameType(StackFrame::ARGUMENTS_ADAPTOR);
-
- // Arguments adaptor can not be topmost or bottommost.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous
- // frame's top and this frame's size.
- uint32_t top_address;
- top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- // Compute the incoming parameter translation.
- int parameter_count = height;
- unsigned output_offset = output_frame_size;
- for (int i = 0; i < parameter_count; ++i) {
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // A marker value is used in place of the context.
- output_offset -= kPointerSize;
- intptr_t context = reinterpret_cast<intptr_t>(
- Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
- output_frame->SetFrameSlot(output_offset, context);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context (adaptor sentinel)\n",
- top_address + output_offset, output_offset, context);
- }
-
- // The function was mentioned explicitly in the ARGUMENTS_ADAPTOR_FRAME.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(function);
- output_frame->SetFrameSlot(output_offset, value);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; function\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Number of incoming arguments.
- output_offset -= kPointerSize;
- value = reinterpret_cast<uint32_t>(Smi::FromInt(height - 1));
- output_frame->SetFrameSlot(output_offset, value);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; argc (%d)\n",
- top_address + output_offset, output_offset, value, height - 1);
- }
-
- ASSERT(0 == output_offset);
-
- Builtins* builtins = isolate_->builtins();
- Code* adaptor_trampoline =
- builtins->builtin(Builtins::kArgumentsAdaptorTrampoline);
- uint32_t pc = reinterpret_cast<uint32_t>(
- adaptor_trampoline->instruction_start() +
- isolate_->heap()->arguments_adaptor_deopt_pc_offset()->value());
- output_frame->SetPc(pc);
-}
-
-
void Deoptimizer::DoComputeCompiledStubFrame(TranslationIterator* iterator,
int frame_index) {
//
}
-void Deoptimizer::DoComputeAccessorStubFrame(TranslationIterator* iterator,
- int frame_index,
- bool is_setter_stub_frame) {
- JSFunction* accessor = JSFunction::cast(ComputeLiteral(iterator->Next()));
- // The receiver (and the implicit return value, if any) are expected in
- // registers by the LoadIC/StoreIC, so they don't belong to the output stack
- // frame. This means that we have to use a height of 0.
- unsigned height = 0;
- unsigned height_in_bytes = height * kPointerSize;
- const char* kind = is_setter_stub_frame ? "setter" : "getter";
- if (trace_) {
- PrintF(" translating %s stub => height=%u\n", kind, height_in_bytes);
- }
-
- // We need 5 stack entries from StackFrame::INTERNAL (lr, fp, cp, frame type,
- // code object, see MacroAssembler::EnterFrame). For a setter stub frames we
- // need one additional entry for the implicit return value, see
- // StoreStubCompiler::CompileStoreViaSetter.
- unsigned fixed_frame_entries = 5 + (is_setter_stub_frame ? 1 : 0);
- unsigned fixed_frame_size = fixed_frame_entries * kPointerSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, accessor);
- output_frame->SetFrameType(StackFrame::INTERNAL);
-
- // A frame for an accessor stub can not be the topmost or bottommost one.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous frame's top and
- // this frame's size.
- uint32_t top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- unsigned output_offset = output_frame_size;
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // The context can be gotten from the previous frame.
- output_offset -= kPointerSize;
- value = output_[frame_index - 1]->GetContext();
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; context\n",
- top_address + output_offset, output_offset, value);
- }
-
- // A marker value is used in place of the function.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::INTERNAL));
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; function (%s sentinel)\n",
- top_address + output_offset, output_offset, value, kind);
- }
-
- // Get Code object from accessor stub.
- output_offset -= kPointerSize;
- Builtins::Name name = is_setter_stub_frame ?
- Builtins::kStoreIC_Setter_ForDeopt :
- Builtins::kLoadIC_Getter_ForDeopt;
- Code* accessor_stub = isolate_->builtins()->builtin(name);
- value = reinterpret_cast<intptr_t>(accessor_stub);
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; code object\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Skip receiver.
- Translation::Opcode opcode =
- static_cast<Translation::Opcode>(iterator->Next());
- iterator->Skip(Translation::NumberOfOperandsFor(opcode));
-
- if (is_setter_stub_frame) {
- // The implicit return value was part of the artificial setter stub
- // environment.
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- ASSERT(0 == output_offset);
-
- Smi* offset = is_setter_stub_frame ?
- isolate_->heap()->setter_stub_deopt_pc_offset() :
- isolate_->heap()->getter_stub_deopt_pc_offset();
- intptr_t pc = reinterpret_cast<intptr_t>(
- accessor_stub->instruction_start() + offset->value());
- output_frame->SetPc(pc);
-}
-
-
// This code is very similar to ia32 code, but relies on register names (fp, sp)
// and how the frame is laid out.
void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator,
}
+void Deoptimizer::DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
+ int frame_index) {
+ JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next()));
+ unsigned height = iterator->Next();
+ unsigned height_in_bytes = height * kPointerSize;
+ if (trace_) {
+ PrintF(" translating arguments adaptor => height=%d\n", height_in_bytes);
+ }
+
+ unsigned fixed_frame_size = ArgumentsAdaptorFrameConstants::kFrameSize;
+ unsigned output_frame_size = height_in_bytes + fixed_frame_size;
+
+ // Allocate and store the output frame description.
+ FrameDescription* output_frame =
+ new(output_frame_size) FrameDescription(output_frame_size, function);
+ output_frame->SetFrameType(StackFrame::ARGUMENTS_ADAPTOR);
+
+ // Arguments adaptor can not be topmost or bottommost.
+ ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
+ ASSERT(output_[frame_index] == NULL);
+ output_[frame_index] = output_frame;
+
+ // The top address of the frame is computed from the previous
+ // frame's top and this frame's size.
+ intptr_t top_address;
+ top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
+ output_frame->SetTop(top_address);
+
+ // Compute the incoming parameter translation.
+ int parameter_count = height;
+ unsigned output_offset = output_frame_size;
+ for (int i = 0; i < parameter_count; ++i) {
+ output_offset -= kPointerSize;
+ DoTranslateCommand(iterator, frame_index, output_offset);
+ }
+
+ // Read caller's PC from the previous frame.
+ output_offset -= kPointerSize;
+ intptr_t callers_pc = output_[frame_index - 1]->GetPc();
+ output_frame->SetFrameSlot(output_offset, callers_pc);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
+ V8PRIxPTR " ; caller's pc\n",
+ top_address + output_offset, output_offset, callers_pc);
+ }
+
+ // Read caller's FP from the previous frame, and set this frame's FP.
+ output_offset -= kPointerSize;
+ intptr_t value = output_[frame_index - 1]->GetFp();
+ output_frame->SetFrameSlot(output_offset, value);
+ intptr_t fp_value = top_address + output_offset;
+ output_frame->SetFp(fp_value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
+ V8PRIxPTR " ; caller's fp\n",
+ fp_value, output_offset, value);
+ }
+
+ // A marker value is used in place of the context.
+ output_offset -= kPointerSize;
+ intptr_t context = reinterpret_cast<intptr_t>(
+ Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
+ output_frame->SetFrameSlot(output_offset, context);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
+ V8PRIxPTR " ; context (adaptor sentinel)\n",
+ top_address + output_offset, output_offset, context);
+ }
+
+ // The function was mentioned explicitly in the ARGUMENTS_ADAPTOR_FRAME.
+ output_offset -= kPointerSize;
+ value = reinterpret_cast<intptr_t>(function);
+ output_frame->SetFrameSlot(output_offset, value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
+ V8PRIxPTR " ; function\n",
+ top_address + output_offset, output_offset, value);
+ }
+
+ // Number of incoming arguments.
+ output_offset -= kPointerSize;
+ value = reinterpret_cast<intptr_t>(Smi::FromInt(height - 1));
+ output_frame->SetFrameSlot(output_offset, value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
+ V8PRIxPTR " ; argc (%d)\n",
+ top_address + output_offset, output_offset, value, height - 1);
+ }
+
+ ASSERT(0 == output_offset);
+
+ Builtins* builtins = isolate_->builtins();
+ Code* adaptor_trampoline =
+ builtins->builtin(Builtins::kArgumentsAdaptorTrampoline);
+ intptr_t pc_value = reinterpret_cast<intptr_t>(
+ adaptor_trampoline->instruction_start() +
+ isolate_->heap()->arguments_adaptor_deopt_pc_offset()->value());
+ output_frame->SetPc(pc_value);
+}
+
+
+void Deoptimizer::DoComputeAccessorStubFrame(TranslationIterator* iterator,
+ int frame_index,
+ bool is_setter_stub_frame) {
+ JSFunction* accessor = JSFunction::cast(ComputeLiteral(iterator->Next()));
+ // The receiver (and the implicit return value, if any) are expected in
+ // registers by the LoadIC/StoreIC, so they don't belong to the output stack
+ // frame. This means that we have to use a height of 0.
+ unsigned height = 0;
+ unsigned height_in_bytes = height * kPointerSize;
+ const char* kind = is_setter_stub_frame ? "setter" : "getter";
+ if (trace_) {
+ PrintF(" translating %s stub => height=%u\n", kind, height_in_bytes);
+ }
+
+ // We need 1 stack entry for the return address + 4 stack entries from
+ // StackFrame::INTERNAL (FP, context, frame type, code object, see
+ // MacroAssembler::EnterFrame). For a setter stub frame we need one additional
+ // entry for the implicit return value, see
+ // StoreStubCompiler::CompileStoreViaSetter.
+ unsigned fixed_frame_entries = 1 + 4 + (is_setter_stub_frame ? 1 : 0);
+ unsigned fixed_frame_size = fixed_frame_entries * kPointerSize;
+ unsigned output_frame_size = height_in_bytes + fixed_frame_size;
+
+ // Allocate and store the output frame description.
+ FrameDescription* output_frame =
+ new(output_frame_size) FrameDescription(output_frame_size, accessor);
+ output_frame->SetFrameType(StackFrame::INTERNAL);
+
+ // A frame for an accessor stub can not be the topmost or bottommost one.
+ ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
+ ASSERT(output_[frame_index] == NULL);
+ output_[frame_index] = output_frame;
+
+ // The top address of the frame is computed from the previous frame's top and
+ // this frame's size.
+ intptr_t top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
+ output_frame->SetTop(top_address);
+
+ unsigned output_offset = output_frame_size;
+
+ // Read caller's PC from the previous frame.
+ output_offset -= kPointerSize;
+ intptr_t callers_pc = output_[frame_index - 1]->GetPc();
+ output_frame->SetFrameSlot(output_offset, callers_pc);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
+ " ; caller's pc\n",
+ top_address + output_offset, output_offset, callers_pc);
+ }
+
+ // Read caller's FP from the previous frame, and set this frame's FP.
+ output_offset -= kPointerSize;
+ intptr_t value = output_[frame_index - 1]->GetFp();
+ output_frame->SetFrameSlot(output_offset, value);
+ intptr_t fp_value = top_address + output_offset;
+ output_frame->SetFp(fp_value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
+ " ; caller's fp\n",
+ fp_value, output_offset, value);
+ }
+
+ // The context can be gotten from the previous frame.
+ output_offset -= kPointerSize;
+ value = output_[frame_index - 1]->GetContext();
+ output_frame->SetFrameSlot(output_offset, value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
+ " ; context\n",
+ top_address + output_offset, output_offset, value);
+ }
+
+ // A marker value is used in place of the function.
+ output_offset -= kPointerSize;
+ value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::INTERNAL));
+ output_frame->SetFrameSlot(output_offset, value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
+ " ; function (%s sentinel)\n",
+ top_address + output_offset, output_offset, value, kind);
+ }
+
+ // Get Code object from accessor stub.
+ output_offset -= kPointerSize;
+ Builtins::Name name = is_setter_stub_frame ?
+ Builtins::kStoreIC_Setter_ForDeopt :
+ Builtins::kLoadIC_Getter_ForDeopt;
+ Code* accessor_stub = isolate_->builtins()->builtin(name);
+ value = reinterpret_cast<intptr_t>(accessor_stub);
+ output_frame->SetFrameSlot(output_offset, value);
+ if (trace_) {
+ PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
+ " ; code object\n",
+ top_address + output_offset, output_offset, value);
+ }
+
+ // Skip receiver.
+ Translation::Opcode opcode =
+ static_cast<Translation::Opcode>(iterator->Next());
+ iterator->Skip(Translation::NumberOfOperandsFor(opcode));
+
+ if (is_setter_stub_frame) {
+ // The implicit return value was part of the artificial setter stub
+ // environment.
+ output_offset -= kPointerSize;
+ DoTranslateCommand(iterator, frame_index, output_offset);
+ }
+
+ ASSERT(0 == output_offset);
+
+ Smi* offset = is_setter_stub_frame ?
+ isolate_->heap()->setter_stub_deopt_pc_offset() :
+ isolate_->heap()->getter_stub_deopt_pc_offset();
+ intptr_t pc = reinterpret_cast<intptr_t>(
+ accessor_stub->instruction_start() + offset->value());
+ output_frame->SetPc(pc);
+}
+
+
void Deoptimizer::MaterializeHeapObjects(JavaScriptFrameIterator* it) {
ASSERT_NE(DEBUGGER, bailout_type_);
}
-void Deoptimizer::DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
- int frame_index) {
- JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next()));
- unsigned height = iterator->Next();
- unsigned height_in_bytes = height * kPointerSize;
- if (trace_) {
- PrintF(" translating arguments adaptor => height=%d\n", height_in_bytes);
- }
-
- unsigned fixed_frame_size = ArgumentsAdaptorFrameConstants::kFrameSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, function);
- output_frame->SetFrameType(StackFrame::ARGUMENTS_ADAPTOR);
-
- // Arguments adaptor can not be topmost or bottommost.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous
- // frame's top and this frame's size.
- uint32_t top_address;
- top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- // Compute the incoming parameter translation.
- int parameter_count = height;
- unsigned output_offset = output_frame_size;
- for (int i = 0; i < parameter_count; ++i) {
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (trace_) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (trace_) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // A marker value is used in place of the context.
- output_offset -= kPointerSize;
- intptr_t context = reinterpret_cast<intptr_t>(
- Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
- output_frame->SetFrameSlot(output_offset, context);
- if (trace_) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context (adaptor sentinel)\n",
- top_address + output_offset, output_offset, context);
- }
-
- // The function was mentioned explicitly in the ARGUMENTS_ADAPTOR_FRAME.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(function);
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; function\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Number of incoming arguments.
- output_offset -= kPointerSize;
- value = reinterpret_cast<uint32_t>(Smi::FromInt(height - 1));
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; argc (%d)\n",
- top_address + output_offset, output_offset, value, height - 1);
- }
-
- ASSERT(0 == output_offset);
-
- Builtins* builtins = isolate_->builtins();
- Code* adaptor_trampoline =
- builtins->builtin(Builtins::kArgumentsAdaptorTrampoline);
- uint32_t pc = reinterpret_cast<uint32_t>(
- adaptor_trampoline->instruction_start() +
- isolate_->heap()->arguments_adaptor_deopt_pc_offset()->value());
- output_frame->SetPc(pc);
-}
-
-
void Deoptimizer::DoComputeCompiledStubFrame(TranslationIterator* iterator,
int frame_index) {
//
}
-void Deoptimizer::DoComputeAccessorStubFrame(TranslationIterator* iterator,
- int frame_index,
- bool is_setter_stub_frame) {
- JSFunction* accessor = JSFunction::cast(ComputeLiteral(iterator->Next()));
- // The receiver (and the implicit return value, if any) are expected in
- // registers by the LoadIC/StoreIC, so they don't belong to the output stack
- // frame. This means that we have to use a height of 0.
- unsigned height = 0;
- unsigned height_in_bytes = height * kPointerSize;
- const char* kind = is_setter_stub_frame ? "setter" : "getter";
- if (trace_) {
- PrintF(" translating %s stub => height=%u\n", kind, height_in_bytes);
- }
-
- // We need 1 stack entry for the return address + 4 stack entries from
- // StackFrame::INTERNAL (FP, context, frame type, code object, see
- // MacroAssembler::EnterFrame). For a setter stub frame we need one additional
- // entry for the implicit return value, see
- // StoreStubCompiler::CompileStoreViaSetter.
- unsigned fixed_frame_entries = 1 + 4 + (is_setter_stub_frame ? 1 : 0);
- unsigned fixed_frame_size = fixed_frame_entries * kPointerSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, accessor);
- output_frame->SetFrameType(StackFrame::INTERNAL);
-
- // A frame for an accessor stub can not be the topmost or bottommost one.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous frame's top and
- // this frame's size.
- intptr_t top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- unsigned output_offset = output_frame_size;
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // The context can be gotten from the previous frame.
- output_offset -= kPointerSize;
- value = output_[frame_index - 1]->GetContext();
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; context\n",
- top_address + output_offset, output_offset, value);
- }
-
- // A marker value is used in place of the function.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::INTERNAL));
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; function (%s sentinel)\n",
- top_address + output_offset, output_offset, value, kind);
- }
-
- // Get Code object from accessor stub.
- output_offset -= kPointerSize;
- Builtins::Name name = is_setter_stub_frame ?
- Builtins::kStoreIC_Setter_ForDeopt :
- Builtins::kLoadIC_Getter_ForDeopt;
- Code* accessor_stub = isolate_->builtins()->builtin(name);
- value = reinterpret_cast<intptr_t>(accessor_stub);
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; code object\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Skip receiver.
- Translation::Opcode opcode =
- static_cast<Translation::Opcode>(iterator->Next());
- iterator->Skip(Translation::NumberOfOperandsFor(opcode));
-
- if (is_setter_stub_frame) {
- // The implicit return value was part of the artificial setter stub
- // environment.
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- ASSERT(0 == output_offset);
-
- Smi* offset = is_setter_stub_frame ?
- isolate_->heap()->setter_stub_deopt_pc_offset() :
- isolate_->heap()->getter_stub_deopt_pc_offset();
- intptr_t pc = reinterpret_cast<intptr_t>(
- accessor_stub->instruction_start() + offset->value());
- output_frame->SetPc(pc);
-}
-
-
void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator,
int frame_index) {
BailoutId node_id = BailoutId(iterator->Next());
}
-void Deoptimizer::DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
- int frame_index) {
- JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next()));
- unsigned height = iterator->Next();
- unsigned height_in_bytes = height * kPointerSize;
- if (FLAG_trace_deopt) {
- PrintF(" translating arguments adaptor => height=%d\n", height_in_bytes);
- }
-
- unsigned fixed_frame_size = ArgumentsAdaptorFrameConstants::kFrameSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, function);
- output_frame->SetFrameType(StackFrame::ARGUMENTS_ADAPTOR);
-
- // Arguments adaptor can not be topmost or bottommost.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous
- // frame's top and this frame's size.
- uint32_t top_address;
- top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- // Compute the incoming parameter translation.
- int parameter_count = height;
- unsigned output_offset = output_frame_size;
- for (int i = 0; i < parameter_count; ++i) {
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // A marker value is used in place of the context.
- output_offset -= kPointerSize;
- intptr_t context = reinterpret_cast<intptr_t>(
- Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
- output_frame->SetFrameSlot(output_offset, context);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context (adaptor sentinel)\n",
- top_address + output_offset, output_offset, context);
- }
-
- // The function was mentioned explicitly in the ARGUMENTS_ADAPTOR_FRAME.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(function);
- output_frame->SetFrameSlot(output_offset, value);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; function\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Number of incoming arguments.
- output_offset -= kPointerSize;
- value = reinterpret_cast<uint32_t>(Smi::FromInt(height - 1));
- output_frame->SetFrameSlot(output_offset, value);
- if (FLAG_trace_deopt) {
- PrintF(" 0x%08x: [top + %d] <- 0x%08x ; argc (%d)\n",
- top_address + output_offset, output_offset, value, height - 1);
- }
-
- ASSERT(0 == output_offset);
-
- Builtins* builtins = isolate_->builtins();
- Code* adaptor_trampoline =
- builtins->builtin(Builtins::kArgumentsAdaptorTrampoline);
- uint32_t pc = reinterpret_cast<uint32_t>(
- adaptor_trampoline->instruction_start() +
- isolate_->heap()->arguments_adaptor_deopt_pc_offset()->value());
- output_frame->SetPc(pc);
-}
-
-
void Deoptimizer::DoCompiledStubFrame(TranslationIterator* iterator,
int frame_index) {
//
}
-void Deoptimizer::DoComputeAccessorStubFrame(TranslationIterator* iterator,
- int frame_index,
- bool is_setter_stub_frame) {
- JSFunction* accessor = JSFunction::cast(ComputeLiteral(iterator->Next()));
- // The receiver (and the implicit return value, if any) are expected in
- // registers by the LoadIC/StoreIC, so they don't belong to the output stack
- // frame. This means that we have to use a height of 0.
- unsigned height = 0;
- unsigned height_in_bytes = height * kPointerSize;
- const char* kind = is_setter_stub_frame ? "setter" : "getter";
- if (trace_) {
- PrintF(" translating %s stub => height=%u\n", kind, height_in_bytes);
- }
-
- // We need 5 stack entries from StackFrame::INTERNAL (ra, fp, cp, frame type,
- // code object, see MacroAssembler::EnterFrame). For a setter stub frame we
- // need one additional entry for the implicit return value, see
- // StoreStubCompiler::CompileStoreViaSetter.
- unsigned fixed_frame_entries = 5 + (is_setter_stub_frame ? 1 : 0);
- unsigned fixed_frame_size = fixed_frame_entries * kPointerSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, accessor);
- output_frame->SetFrameType(StackFrame::INTERNAL);
-
- // A frame for an accessor stub can not be the topmost or bottommost one.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous frame's top and
- // this frame's size.
- uint32_t top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- unsigned output_offset = output_frame_size;
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's pc\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // The context can be gotten from the previous frame.
- output_offset -= kPointerSize;
- value = output_[frame_index - 1]->GetContext();
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; context\n",
- top_address + output_offset, output_offset, value);
- }
-
- // A marker value is used in place of the function.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::INTERNAL));
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; function (%s sentinel)\n",
- top_address + output_offset, output_offset, value, kind);
- }
-
- // Get Code object from accessor stub.
- output_offset -= kPointerSize;
- Builtins::Name name = is_setter_stub_frame ?
- Builtins::kStoreIC_Setter_ForDeopt :
- Builtins::kLoadIC_Getter_ForDeopt;
- Code* accessor_stub = isolate_->builtins()->builtin(name);
- value = reinterpret_cast<intptr_t>(accessor_stub);
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; code object\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Skip receiver.
- Translation::Opcode opcode =
- static_cast<Translation::Opcode>(iterator->Next());
- iterator->Skip(Translation::NumberOfOperandsFor(opcode));
-
- if (is_setter_stub_frame) {
- // The implicit return value was part of the artificial setter stub
- // environment.
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- ASSERT(0 == output_offset);
-
- Smi* offset = is_setter_stub_frame ?
- isolate_->heap()->setter_stub_deopt_pc_offset() :
- isolate_->heap()->getter_stub_deopt_pc_offset();
- intptr_t pc = reinterpret_cast<intptr_t>(
- accessor_stub->instruction_start() + offset->value());
- output_frame->SetPc(pc);
-}
-
-
// This code is very similar to ia32/arm code, but relies on register names
// (fp, sp) and how the frame is laid out.
void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator,
}
-void Deoptimizer::DoComputeArgumentsAdaptorFrame(TranslationIterator* iterator,
- int frame_index) {
- JSFunction* function = JSFunction::cast(ComputeLiteral(iterator->Next()));
- unsigned height = iterator->Next();
- unsigned height_in_bytes = height * kPointerSize;
- if (trace_) {
- PrintF(" translating arguments adaptor => height=%d\n", height_in_bytes);
- }
-
- unsigned fixed_frame_size = ArgumentsAdaptorFrameConstants::kFrameSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, function);
- output_frame->SetFrameType(StackFrame::ARGUMENTS_ADAPTOR);
-
- // Arguments adaptor can not be topmost or bottommost.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous
- // frame's top and this frame's size.
- intptr_t top_address;
- top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- // Compute the incoming parameter translation.
- int parameter_count = height;
- unsigned output_offset = output_frame_size;
- for (int i = 0; i < parameter_count; ++i) {
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
- V8PRIxPTR " ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
- V8PRIxPTR " ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // A marker value is used in place of the context.
- output_offset -= kPointerSize;
- intptr_t context = reinterpret_cast<intptr_t>(
- Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
- output_frame->SetFrameSlot(output_offset, context);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
- V8PRIxPTR " ; context (adaptor sentinel)\n",
- top_address + output_offset, output_offset, context);
- }
-
- // The function was mentioned explicitly in the ARGUMENTS_ADAPTOR_FRAME.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(function);
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
- V8PRIxPTR " ; function\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Number of incoming arguments.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(Smi::FromInt(height - 1));
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %d] <- 0x%08"
- V8PRIxPTR " ; argc (%d)\n",
- top_address + output_offset, output_offset, value, height - 1);
- }
-
- ASSERT(0 == output_offset);
-
- Builtins* builtins = isolate_->builtins();
- Code* adaptor_trampoline =
- builtins->builtin(Builtins::kArgumentsAdaptorTrampoline);
- intptr_t pc_value = reinterpret_cast<intptr_t>(
- adaptor_trampoline->instruction_start() +
- isolate_->heap()->arguments_adaptor_deopt_pc_offset()->value());
- output_frame->SetPc(pc_value);
-}
-
-
void Deoptimizer::DoComputeCompiledStubFrame(TranslationIterator* iterator,
int frame_index) {
//
}
-void Deoptimizer::DoComputeAccessorStubFrame(TranslationIterator* iterator,
- int frame_index,
- bool is_setter_stub_frame) {
- JSFunction* accessor = JSFunction::cast(ComputeLiteral(iterator->Next()));
- // The receiver (and the implicit return value, if any) are expected in
- // registers by the LoadIC/StoreIC, so they don't belong to the output stack
- // frame. This means that we have to use a height of 0.
- unsigned height = 0;
- unsigned height_in_bytes = height * kPointerSize;
- const char* kind = is_setter_stub_frame ? "setter" : "getter";
- if (trace_) {
- PrintF(" translating %s stub => height=%u\n", kind, height_in_bytes);
- }
-
- // We need 1 stack entry for the return address + 4 stack entries from
- // StackFrame::INTERNAL (FP, context, frame type, code object, see
- // MacroAssembler::EnterFrame). For a setter stub frame we need one additional
- // entry for the implicit return value, see
- // StoreStubCompiler::CompileStoreViaSetter.
- unsigned fixed_frame_entries = 1 + 4 + (is_setter_stub_frame ? 1 : 0);
- unsigned fixed_frame_size = fixed_frame_entries * kPointerSize;
- unsigned output_frame_size = height_in_bytes + fixed_frame_size;
-
- // Allocate and store the output frame description.
- FrameDescription* output_frame =
- new(output_frame_size) FrameDescription(output_frame_size, accessor);
- output_frame->SetFrameType(StackFrame::INTERNAL);
-
- // A frame for an accessor stub can not be the topmost or bottommost one.
- ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
- ASSERT(output_[frame_index] == NULL);
- output_[frame_index] = output_frame;
-
- // The top address of the frame is computed from the previous frame's top and
- // this frame's size.
- intptr_t top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
- output_frame->SetTop(top_address);
-
- unsigned output_offset = output_frame_size;
-
- // Read caller's PC from the previous frame.
- output_offset -= kPointerSize;
- intptr_t callers_pc = output_[frame_index - 1]->GetPc();
- output_frame->SetFrameSlot(output_offset, callers_pc);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's pc\n",
- top_address + output_offset, output_offset, callers_pc);
- }
-
- // Read caller's FP from the previous frame, and set this frame's FP.
- output_offset -= kPointerSize;
- intptr_t value = output_[frame_index - 1]->GetFp();
- output_frame->SetFrameSlot(output_offset, value);
- intptr_t fp_value = top_address + output_offset;
- output_frame->SetFp(fp_value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; caller's fp\n",
- fp_value, output_offset, value);
- }
-
- // The context can be gotten from the previous frame.
- output_offset -= kPointerSize;
- value = output_[frame_index - 1]->GetContext();
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; context\n",
- top_address + output_offset, output_offset, value);
- }
-
- // A marker value is used in place of the function.
- output_offset -= kPointerSize;
- value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::INTERNAL));
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; function (%s sentinel)\n",
- top_address + output_offset, output_offset, value, kind);
- }
-
- // Get Code object from accessor stub.
- output_offset -= kPointerSize;
- Builtins::Name name = is_setter_stub_frame ?
- Builtins::kStoreIC_Setter_ForDeopt :
- Builtins::kLoadIC_Getter_ForDeopt;
- Code* accessor_stub = isolate_->builtins()->builtin(name);
- value = reinterpret_cast<intptr_t>(accessor_stub);
- output_frame->SetFrameSlot(output_offset, value);
- if (trace_) {
- PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
- " ; code object\n",
- top_address + output_offset, output_offset, value);
- }
-
- // Skip receiver.
- Translation::Opcode opcode =
- static_cast<Translation::Opcode>(iterator->Next());
- iterator->Skip(Translation::NumberOfOperandsFor(opcode));
-
- if (is_setter_stub_frame) {
- // The implicit return value was part of the artificial setter stub
- // environment.
- output_offset -= kPointerSize;
- DoTranslateCommand(iterator, frame_index, output_offset);
- }
-
- ASSERT(0 == output_offset);
-
- Smi* offset = is_setter_stub_frame ?
- isolate_->heap()->setter_stub_deopt_pc_offset() :
- isolate_->heap()->getter_stub_deopt_pc_offset();
- intptr_t pc = reinterpret_cast<intptr_t>(
- accessor_stub->instruction_start() + offset->value());
- output_frame->SetPc(pc);
-}
-
-
void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator,
int frame_index) {
BailoutId node_id = BailoutId(iterator->Next());
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