Index: src/ic/ia32/ic-compiler-ia32.cc |
diff --git a/src/ic/ia32/ic-compiler-ia32.cc b/src/ic/ia32/ic-compiler-ia32.cc |
index fb1542dfc11fcbe10d2d12e90dd7e2b4f1a29445..4fce7cc68fdb5c6a769155f06a6b9d58ca233402 100644 |
--- a/src/ic/ia32/ic-compiler-ia32.cc |
+++ b/src/ic/ia32/ic-compiler-ia32.cc |
@@ -6,7 +6,6 @@ |
#if V8_TARGET_ARCH_IA32 |
-#include "src/ic/call-optimization.h" |
#include "src/ic/ic-compiler.h" |
namespace v8 { |
@@ -14,842 +13,27 @@ namespace internal { |
#define __ ACCESS_MASM(masm) |
-void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup( |
- MacroAssembler* masm, Label* miss_label, Register receiver, |
- Handle<Name> name, Register scratch0, Register scratch1) { |
- DCHECK(name->IsUniqueName()); |
- DCHECK(!receiver.is(scratch0)); |
- Counters* counters = masm->isolate()->counters(); |
- __ IncrementCounter(counters->negative_lookups(), 1); |
- __ IncrementCounter(counters->negative_lookups_miss(), 1); |
- __ mov(scratch0, FieldOperand(receiver, HeapObject::kMapOffset)); |
- |
- const int kInterceptorOrAccessCheckNeededMask = |
- (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
- |
- // Bail out if the receiver has a named interceptor or requires access checks. |
- __ test_b(FieldOperand(scratch0, Map::kBitFieldOffset), |
- kInterceptorOrAccessCheckNeededMask); |
- __ j(not_zero, miss_label); |
- |
- // Check that receiver is a JSObject. |
- __ CmpInstanceType(scratch0, FIRST_SPEC_OBJECT_TYPE); |
- __ j(below, miss_label); |
- |
- // Load properties array. |
- Register properties = scratch0; |
- __ mov(properties, FieldOperand(receiver, JSObject::kPropertiesOffset)); |
- |
- // Check that the properties array is a dictionary. |
- __ cmp(FieldOperand(properties, HeapObject::kMapOffset), |
- Immediate(masm->isolate()->factory()->hash_table_map())); |
- __ j(not_equal, miss_label); |
- |
- Label done; |
- NameDictionaryLookupStub::GenerateNegativeLookup(masm, miss_label, &done, |
- properties, name, scratch1); |
- __ bind(&done); |
- __ DecrementCounter(counters->negative_lookups_miss(), 1); |
-} |
- |
- |
-void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
- MacroAssembler* masm, int index, Register prototype, Label* miss) { |
- // Get the global function with the given index. |
- Handle<JSFunction> function( |
- JSFunction::cast(masm->isolate()->native_context()->get(index))); |
- // Check we're still in the same context. |
- Register scratch = prototype; |
- const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX); |
- __ mov(scratch, Operand(esi, offset)); |
- __ mov(scratch, FieldOperand(scratch, GlobalObject::kNativeContextOffset)); |
- __ cmp(Operand(scratch, Context::SlotOffset(index)), function); |
- __ j(not_equal, miss); |
- |
- // Load its initial map. The global functions all have initial maps. |
- __ Move(prototype, Immediate(Handle<Map>(function->initial_map()))); |
- // Load the prototype from the initial map. |
- __ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); |
-} |
- |
- |
-void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype( |
- MacroAssembler* masm, Register receiver, Register scratch1, |
- Register scratch2, Label* miss_label) { |
- __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
- __ mov(eax, scratch1); |
- __ ret(0); |
-} |
- |
- |
-static void PushInterceptorArguments(MacroAssembler* masm, Register receiver, |
- Register holder, Register name, |
- Handle<JSObject> holder_obj) { |
- STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0); |
- STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsInfoIndex == 1); |
- STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 2); |
- STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 3); |
- STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 4); |
- __ push(name); |
- Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor()); |
- DCHECK(!masm->isolate()->heap()->InNewSpace(*interceptor)); |
- Register scratch = name; |
- __ mov(scratch, Immediate(interceptor)); |
- __ push(scratch); |
- __ push(receiver); |
- __ push(holder); |
-} |
- |
- |
-static void CompileCallLoadPropertyWithInterceptor( |
- MacroAssembler* masm, Register receiver, Register holder, Register name, |
- Handle<JSObject> holder_obj, IC::UtilityId id) { |
- PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
- __ CallExternalReference(ExternalReference(IC_Utility(id), masm->isolate()), |
- NamedLoadHandlerCompiler::kInterceptorArgsLength); |
-} |
- |
- |
-// Generate call to api function. |
-// This function uses push() to generate smaller, faster code than |
-// the version above. It is an optimization that should will be removed |
-// when api call ICs are generated in hydrogen. |
-void PropertyHandlerCompiler::GenerateFastApiCall( |
- MacroAssembler* masm, const CallOptimization& optimization, |
- Handle<Map> receiver_map, Register receiver, Register scratch_in, |
- bool is_store, int argc, Register* values) { |
- // Copy return value. |
- __ pop(scratch_in); |
- // receiver |
- __ push(receiver); |
- // Write the arguments to stack frame. |
- for (int i = 0; i < argc; i++) { |
- Register arg = values[argc - 1 - i]; |
- DCHECK(!receiver.is(arg)); |
- DCHECK(!scratch_in.is(arg)); |
- __ push(arg); |
- } |
- __ push(scratch_in); |
- // Stack now matches JSFunction abi. |
- DCHECK(optimization.is_simple_api_call()); |
- |
- // Abi for CallApiFunctionStub. |
- Register callee = eax; |
- Register call_data = ebx; |
- Register holder = ecx; |
- Register api_function_address = edx; |
- Register scratch = edi; // scratch_in is no longer valid. |
- |
- // Put holder in place. |
- CallOptimization::HolderLookup holder_lookup; |
- Handle<JSObject> api_holder = |
- optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup); |
- switch (holder_lookup) { |
- case CallOptimization::kHolderIsReceiver: |
- __ Move(holder, receiver); |
- break; |
- case CallOptimization::kHolderFound: |
- __ LoadHeapObject(holder, api_holder); |
- break; |
- case CallOptimization::kHolderNotFound: |
- UNREACHABLE(); |
- break; |
- } |
- |
- Isolate* isolate = masm->isolate(); |
- Handle<JSFunction> function = optimization.constant_function(); |
- Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
- Handle<Object> call_data_obj(api_call_info->data(), isolate); |
- |
- // Put callee in place. |
- __ LoadHeapObject(callee, function); |
- |
- bool call_data_undefined = false; |
- // Put call_data in place. |
- if (isolate->heap()->InNewSpace(*call_data_obj)) { |
- __ mov(scratch, api_call_info); |
- __ mov(call_data, FieldOperand(scratch, CallHandlerInfo::kDataOffset)); |
- } else if (call_data_obj->IsUndefined()) { |
- call_data_undefined = true; |
- __ mov(call_data, Immediate(isolate->factory()->undefined_value())); |
- } else { |
- __ mov(call_data, call_data_obj); |
- } |
- |
- // Put api_function_address in place. |
- Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
- __ mov(api_function_address, Immediate(function_address)); |
- |
- // Jump to stub. |
- CallApiFunctionStub stub(isolate, is_store, call_data_undefined, argc); |
- __ TailCallStub(&stub); |
-} |
- |
- |
-// Generate code to check that a global property cell is empty. Create |
-// the property cell at compilation time if no cell exists for the |
-// property. |
-void PropertyHandlerCompiler::GenerateCheckPropertyCell( |
- MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name, |
- Register scratch, Label* miss) { |
- Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name); |
- DCHECK(cell->value()->IsTheHole()); |
- Handle<Oddball> the_hole = masm->isolate()->factory()->the_hole_value(); |
- if (masm->serializer_enabled()) { |
- __ mov(scratch, Immediate(cell)); |
- __ cmp(FieldOperand(scratch, PropertyCell::kValueOffset), |
- Immediate(the_hole)); |
- } else { |
- __ cmp(Operand::ForCell(cell), Immediate(the_hole)); |
- } |
- __ j(not_equal, miss); |
-} |
- |
- |
-#undef __ |
-#define __ ACCESS_MASM(masm()) |
- |
- |
-void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label, |
- Handle<Name> name) { |
- if (!label->is_unused()) { |
- __ bind(label); |
- __ mov(this->name(), Immediate(name)); |
- } |
-} |
- |
- |
-// Receiver_reg is preserved on jumps to miss_label, but may be destroyed if |
-// store is successful. |
-void NamedStoreHandlerCompiler::GenerateStoreTransition( |
- Handle<Map> transition, Handle<Name> name, Register receiver_reg, |
- Register storage_reg, Register value_reg, Register scratch1, |
- Register scratch2, Register unused, Label* miss_label, Label* slow) { |
- int descriptor = transition->LastAdded(); |
- DescriptorArray* descriptors = transition->instance_descriptors(); |
- PropertyDetails details = descriptors->GetDetails(descriptor); |
- Representation representation = details.representation(); |
- DCHECK(!representation.IsNone()); |
- |
- if (details.type() == CONSTANT) { |
- Handle<Object> constant(descriptors->GetValue(descriptor), isolate()); |
- __ CmpObject(value_reg, constant); |
- __ j(not_equal, miss_label); |
- } else if (representation.IsSmi()) { |
- __ JumpIfNotSmi(value_reg, miss_label); |
- } else if (representation.IsHeapObject()) { |
- __ JumpIfSmi(value_reg, miss_label); |
- HeapType* field_type = descriptors->GetFieldType(descriptor); |
- HeapType::Iterator<Map> it = field_type->Classes(); |
- if (!it.Done()) { |
- Label do_store; |
- while (true) { |
- __ CompareMap(value_reg, it.Current()); |
- it.Advance(); |
- if (it.Done()) { |
- __ j(not_equal, miss_label); |
- break; |
- } |
- __ j(equal, &do_store, Label::kNear); |
- } |
- __ bind(&do_store); |
- } |
- } else if (representation.IsDouble()) { |
- Label do_store, heap_number; |
- __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow, MUTABLE); |
- |
- __ JumpIfNotSmi(value_reg, &heap_number); |
- __ SmiUntag(value_reg); |
- __ Cvtsi2sd(xmm0, value_reg); |
- __ SmiTag(value_reg); |
- __ jmp(&do_store); |
- |
- __ bind(&heap_number); |
- __ CheckMap(value_reg, isolate()->factory()->heap_number_map(), miss_label, |
- DONT_DO_SMI_CHECK); |
- __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset)); |
- |
- __ bind(&do_store); |
- __ movsd(FieldOperand(storage_reg, HeapNumber::kValueOffset), xmm0); |
- } |
- |
- // Stub never generated for objects that require access checks. |
- DCHECK(!transition->is_access_check_needed()); |
- |
- // Perform map transition for the receiver if necessary. |
- if (details.type() == FIELD && |
- Map::cast(transition->GetBackPointer())->unused_property_fields() == 0) { |
- // The properties must be extended before we can store the value. |
- // We jump to a runtime call that extends the properties array. |
- __ pop(scratch1); // Return address. |
- __ push(receiver_reg); |
- __ push(Immediate(transition)); |
- __ push(value_reg); |
- __ push(scratch1); |
- __ TailCallExternalReference( |
- ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage), |
- isolate()), |
- 3, 1); |
- return; |
- } |
- |
- // Update the map of the object. |
- __ mov(scratch1, Immediate(transition)); |
- __ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset), scratch1); |
- |
- // Update the write barrier for the map field. |
- __ RecordWriteField(receiver_reg, HeapObject::kMapOffset, scratch1, scratch2, |
- kDontSaveFPRegs, OMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
- |
- if (details.type() == CONSTANT) { |
- DCHECK(value_reg.is(eax)); |
- __ ret(0); |
- return; |
- } |
- |
- int index = transition->instance_descriptors()->GetFieldIndex( |
- transition->LastAdded()); |
- |
- // Adjust for the number of properties stored in the object. Even in the |
- // face of a transition we can use the old map here because the size of the |
- // object and the number of in-object properties is not going to change. |
- index -= transition->inobject_properties(); |
- |
- SmiCheck smi_check = |
- representation.IsTagged() ? INLINE_SMI_CHECK : OMIT_SMI_CHECK; |
- // TODO(verwaest): Share this code as a code stub. |
- if (index < 0) { |
- // Set the property straight into the object. |
- int offset = transition->instance_size() + (index * kPointerSize); |
- if (representation.IsDouble()) { |
- __ mov(FieldOperand(receiver_reg, offset), storage_reg); |
- } else { |
- __ mov(FieldOperand(receiver_reg, offset), value_reg); |
- } |
- |
- if (!representation.IsSmi()) { |
- // Update the write barrier for the array address. |
- if (!representation.IsDouble()) { |
- __ mov(storage_reg, value_reg); |
- } |
- __ RecordWriteField(receiver_reg, offset, storage_reg, scratch1, |
- kDontSaveFPRegs, EMIT_REMEMBERED_SET, smi_check); |
- } |
- } else { |
- // Write to the properties array. |
- int offset = index * kPointerSize + FixedArray::kHeaderSize; |
- // Get the properties array (optimistically). |
- __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); |
- if (representation.IsDouble()) { |
- __ mov(FieldOperand(scratch1, offset), storage_reg); |
- } else { |
- __ mov(FieldOperand(scratch1, offset), value_reg); |
- } |
- |
- if (!representation.IsSmi()) { |
- // Update the write barrier for the array address. |
- if (!representation.IsDouble()) { |
- __ mov(storage_reg, value_reg); |
- } |
- __ RecordWriteField(scratch1, offset, storage_reg, receiver_reg, |
- kDontSaveFPRegs, EMIT_REMEMBERED_SET, smi_check); |
- } |
- } |
- |
- // Return the value (register eax). |
- DCHECK(value_reg.is(eax)); |
- __ ret(0); |
-} |
- |
- |
-void NamedStoreHandlerCompiler::GenerateStoreField(LookupIterator* lookup, |
- Register value_reg, |
- Label* miss_label) { |
- DCHECK(lookup->representation().IsHeapObject()); |
- __ JumpIfSmi(value_reg, miss_label); |
- HeapType::Iterator<Map> it = lookup->GetFieldType()->Classes(); |
- Label do_store; |
- while (true) { |
- __ CompareMap(value_reg, it.Current()); |
- it.Advance(); |
- if (it.Done()) { |
- __ j(not_equal, miss_label); |
- break; |
- } |
- __ j(equal, &do_store, Label::kNear); |
- } |
- __ bind(&do_store); |
- |
- StoreFieldStub stub(isolate(), lookup->GetFieldIndex(), |
- lookup->representation()); |
- GenerateTailCall(masm(), stub.GetCode()); |
-} |
- |
- |
-Register PropertyHandlerCompiler::CheckPrototypes( |
- Register object_reg, Register holder_reg, Register scratch1, |
- Register scratch2, Handle<Name> name, Label* miss, |
- PrototypeCheckType check) { |
- Handle<Map> receiver_map(IC::TypeToMap(*type(), isolate())); |
- |
- // Make sure there's no overlap between holder and object registers. |
- DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
- DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg) && |
- !scratch2.is(scratch1)); |
- |
- // Keep track of the current object in register reg. |
- Register reg = object_reg; |
- int depth = 0; |
- |
- Handle<JSObject> current = Handle<JSObject>::null(); |
- if (type()->IsConstant()) |
- current = Handle<JSObject>::cast(type()->AsConstant()->Value()); |
- Handle<JSObject> prototype = Handle<JSObject>::null(); |
- Handle<Map> current_map = receiver_map; |
- Handle<Map> holder_map(holder()->map()); |
- // Traverse the prototype chain and check the maps in the prototype chain for |
- // fast and global objects or do negative lookup for normal objects. |
- while (!current_map.is_identical_to(holder_map)) { |
- ++depth; |
- |
- // Only global objects and objects that do not require access |
- // checks are allowed in stubs. |
- DCHECK(current_map->IsJSGlobalProxyMap() || |
- !current_map->is_access_check_needed()); |
- |
- prototype = handle(JSObject::cast(current_map->prototype())); |
- if (current_map->is_dictionary_map() && |
- !current_map->IsJSGlobalObjectMap()) { |
- DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
- if (!name->IsUniqueName()) { |
- DCHECK(name->IsString()); |
- name = factory()->InternalizeString(Handle<String>::cast(name)); |
- } |
- DCHECK(current.is_null() || |
- current->property_dictionary()->FindEntry(name) == |
- NameDictionary::kNotFound); |
- |
- GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1, |
- scratch2); |
- |
- __ mov(scratch1, FieldOperand(reg, HeapObject::kMapOffset)); |
- reg = holder_reg; // From now on the object will be in holder_reg. |
- __ mov(reg, FieldOperand(scratch1, Map::kPrototypeOffset)); |
- } else { |
- bool in_new_space = heap()->InNewSpace(*prototype); |
- // Two possible reasons for loading the prototype from the map: |
- // (1) Can't store references to new space in code. |
- // (2) Handler is shared for all receivers with the same prototype |
- // map (but not necessarily the same prototype instance). |
- bool load_prototype_from_map = in_new_space || depth == 1; |
- if (depth != 1 || check == CHECK_ALL_MAPS) { |
- __ CheckMap(reg, current_map, miss, DONT_DO_SMI_CHECK); |
- } |
- |
- // Check access rights to the global object. This has to happen after |
- // the map check so that we know that the object is actually a global |
- // object. |
- // This allows us to install generated handlers for accesses to the |
- // global proxy (as opposed to using slow ICs). See corresponding code |
- // in LookupForRead(). |
- if (current_map->IsJSGlobalProxyMap()) { |
- __ CheckAccessGlobalProxy(reg, scratch1, scratch2, miss); |
- } else if (current_map->IsJSGlobalObjectMap()) { |
- GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current), |
- name, scratch2, miss); |
- } |
- |
- if (load_prototype_from_map) { |
- // Save the map in scratch1 for later. |
- __ mov(scratch1, FieldOperand(reg, HeapObject::kMapOffset)); |
- } |
- |
- reg = holder_reg; // From now on the object will be in holder_reg. |
- |
- if (load_prototype_from_map) { |
- __ mov(reg, FieldOperand(scratch1, Map::kPrototypeOffset)); |
- } else { |
- __ mov(reg, prototype); |
- } |
- } |
- |
- // Go to the next object in the prototype chain. |
- current = prototype; |
- current_map = handle(current->map()); |
- } |
- |
- // Log the check depth. |
- LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
- |
- if (depth != 0 || check == CHECK_ALL_MAPS) { |
- // Check the holder map. |
- __ CheckMap(reg, current_map, miss, DONT_DO_SMI_CHECK); |
- } |
- |
- // Perform security check for access to the global object. |
- DCHECK(current_map->IsJSGlobalProxyMap() || |
- !current_map->is_access_check_needed()); |
- if (current_map->IsJSGlobalProxyMap()) { |
- __ CheckAccessGlobalProxy(reg, scratch1, scratch2, miss); |
- } |
- |
- // Return the register containing the holder. |
- return reg; |
-} |
- |
- |
-void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
- if (!miss->is_unused()) { |
- Label success; |
- __ jmp(&success); |
- __ bind(miss); |
- TailCallBuiltin(masm(), MissBuiltin(kind())); |
- __ bind(&success); |
- } |
-} |
- |
- |
-void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) { |
- if (!miss->is_unused()) { |
- Label success; |
- __ jmp(&success); |
- GenerateRestoreName(miss, name); |
- TailCallBuiltin(masm(), MissBuiltin(kind())); |
- __ bind(&success); |
- } |
-} |
- |
- |
-void NamedLoadHandlerCompiler::GenerateLoadCallback( |
- Register reg, Handle<ExecutableAccessorInfo> callback) { |
- // Insert additional parameters into the stack frame above return address. |
- DCHECK(!scratch3().is(reg)); |
- __ pop(scratch3()); // Get return address to place it below. |
- |
- STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 0); |
- STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 1); |
- STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 2); |
- STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 3); |
- STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 4); |
- STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 5); |
- __ push(receiver()); // receiver |
- // Push data from ExecutableAccessorInfo. |
- if (isolate()->heap()->InNewSpace(callback->data())) { |
- DCHECK(!scratch2().is(reg)); |
- __ mov(scratch2(), Immediate(callback)); |
- __ push(FieldOperand(scratch2(), ExecutableAccessorInfo::kDataOffset)); |
- } else { |
- __ push(Immediate(Handle<Object>(callback->data(), isolate()))); |
- } |
- __ push(Immediate(isolate()->factory()->undefined_value())); // ReturnValue |
- // ReturnValue default value |
- __ push(Immediate(isolate()->factory()->undefined_value())); |
- __ push(Immediate(reinterpret_cast<int>(isolate()))); |
- __ push(reg); // holder |
- |
- // Save a pointer to where we pushed the arguments. This will be |
- // passed as the const PropertyAccessorInfo& to the C++ callback. |
- __ push(esp); |
- |
- __ push(name()); // name |
- |
- __ push(scratch3()); // Restore return address. |
- |
- // Abi for CallApiGetter |
- Register getter_address = edx; |
- Address function_address = v8::ToCData<Address>(callback->getter()); |
- __ mov(getter_address, Immediate(function_address)); |
- |
- CallApiGetterStub stub(isolate()); |
- __ TailCallStub(&stub); |
-} |
- |
- |
-void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) { |
- // Return the constant value. |
- __ LoadObject(eax, value); |
- __ ret(0); |
-} |
- |
- |
-void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup( |
- LookupIterator* it, Register holder_reg) { |
- DCHECK(holder()->HasNamedInterceptor()); |
- DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
- |
- // Compile the interceptor call, followed by inline code to load the |
- // property from further up the prototype chain if the call fails. |
- // Check that the maps haven't changed. |
- DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
- |
- // Preserve the receiver register explicitly whenever it is different from the |
- // holder and it is needed should the interceptor return without any result. |
- // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD |
- // case might cause a miss during the prototype check. |
- bool must_perform_prototype_check = |
- !holder().is_identical_to(it->GetHolder<JSObject>()); |
- bool must_preserve_receiver_reg = |
- !receiver().is(holder_reg) && |
- (it->property_kind() == LookupIterator::ACCESSOR || |
- must_perform_prototype_check); |
- |
- // Save necessary data before invoking an interceptor. |
- // Requires a frame to make GC aware of pushed pointers. |
- { |
- FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
- |
- if (must_preserve_receiver_reg) { |
- __ push(receiver()); |
- } |
- __ push(holder_reg); |
- __ push(this->name()); |
- |
- // Invoke an interceptor. Note: map checks from receiver to |
- // interceptor's holder has been compiled before (see a caller |
- // of this method.) |
- CompileCallLoadPropertyWithInterceptor( |
- masm(), receiver(), holder_reg, this->name(), holder(), |
- IC::kLoadPropertyWithInterceptorOnly); |
- |
- // Check if interceptor provided a value for property. If it's |
- // the case, return immediately. |
- Label interceptor_failed; |
- __ cmp(eax, factory()->no_interceptor_result_sentinel()); |
- __ j(equal, &interceptor_failed); |
- frame_scope.GenerateLeaveFrame(); |
- __ ret(0); |
- |
- // Clobber registers when generating debug-code to provoke errors. |
- __ bind(&interceptor_failed); |
- if (FLAG_debug_code) { |
- __ mov(receiver(), Immediate(BitCast<int32_t>(kZapValue))); |
- __ mov(holder_reg, Immediate(BitCast<int32_t>(kZapValue))); |
- __ mov(this->name(), Immediate(BitCast<int32_t>(kZapValue))); |
- } |
- |
- __ pop(this->name()); |
- __ pop(holder_reg); |
- if (must_preserve_receiver_reg) { |
- __ pop(receiver()); |
- } |
- |
- // Leave the internal frame. |
- } |
- |
- GenerateLoadPostInterceptor(it, holder_reg); |
-} |
- |
- |
-void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) { |
- DCHECK(holder()->HasNamedInterceptor()); |
- DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined()); |
- // Call the runtime system to load the interceptor. |
- __ pop(scratch2()); // save old return address |
- PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(), |
- holder()); |
- __ push(scratch2()); // restore old return address |
- |
- ExternalReference ref = ExternalReference( |
- IC_Utility(IC::kLoadPropertyWithInterceptor), isolate()); |
- __ TailCallExternalReference( |
- ref, NamedLoadHandlerCompiler::kInterceptorArgsLength, 1); |
-} |
- |
- |
-Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback( |
- Handle<JSObject> object, Handle<Name> name, |
- Handle<ExecutableAccessorInfo> callback) { |
- Register holder_reg = Frontend(receiver(), name); |
- |
- __ pop(scratch1()); // remove the return address |
- __ push(receiver()); |
- __ push(holder_reg); |
- __ Push(callback); |
- __ Push(name); |
- __ push(value()); |
- __ push(scratch1()); // restore return address |
- |
- // Do tail-call to the runtime system. |
- ExternalReference store_callback_property = |
- ExternalReference(IC_Utility(IC::kStoreCallbackProperty), isolate()); |
- __ TailCallExternalReference(store_callback_property, 5, 1); |
- |
- // Return the generated code. |
- return GetCode(kind(), Code::FAST, name); |
-} |
- |
- |
-#undef __ |
-#define __ ACCESS_MASM(masm) |
- |
- |
-void NamedStoreHandlerCompiler::GenerateStoreViaSetter( |
- MacroAssembler* masm, Handle<HeapType> type, Register receiver, |
- Handle<JSFunction> setter) { |
- // ----------- S t a t e ------------- |
- // -- esp[0] : return address |
- // ----------------------------------- |
- { |
- FrameScope scope(masm, StackFrame::INTERNAL); |
- |
- // Save value register, so we can restore it later. |
- __ push(value()); |
- |
- if (!setter.is_null()) { |
- // Call the JavaScript setter with receiver and value on the stack. |
- if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) { |
- // Swap in the global receiver. |
- __ mov(receiver, |
- FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
- } |
- __ push(receiver); |
- __ push(value()); |
- ParameterCount actual(1); |
- ParameterCount expected(setter); |
- __ InvokeFunction(setter, expected, actual, CALL_FUNCTION, |
- NullCallWrapper()); |
- } else { |
- // If we generate a global code snippet for deoptimization only, remember |
- // the place to continue after deoptimization. |
- masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
- } |
- |
- // We have to return the passed value, not the return value of the setter. |
- __ pop(eax); |
- |
- // Restore context register. |
- __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
- } |
- __ ret(0); |
-} |
- |
- |
-#undef __ |
-#define __ ACCESS_MASM(masm()) |
- |
- |
-Handle<Code> NamedStoreHandlerCompiler::CompileStoreInterceptor( |
- Handle<Name> name) { |
- __ pop(scratch1()); // remove the return address |
- __ push(receiver()); |
- __ push(this->name()); |
- __ push(value()); |
- __ push(scratch1()); // restore return address |
- |
- // Do tail-call to the runtime system. |
- ExternalReference store_ic_property = ExternalReference( |
- IC_Utility(IC::kStorePropertyWithInterceptor), isolate()); |
- __ TailCallExternalReference(store_ic_property, 3, 1); |
- |
- // Return the generated code. |
- return GetCode(kind(), Code::FAST, name); |
-} |
- |
- |
-Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic( |
- MapHandleList* receiver_maps, CodeHandleList* handler_stubs, |
- MapHandleList* transitioned_maps) { |
- Label miss; |
- __ JumpIfSmi(receiver(), &miss, Label::kNear); |
- __ mov(scratch1(), FieldOperand(receiver(), HeapObject::kMapOffset)); |
- for (int i = 0; i < receiver_maps->length(); ++i) { |
- __ cmp(scratch1(), receiver_maps->at(i)); |
- if (transitioned_maps->at(i).is_null()) { |
- __ j(equal, handler_stubs->at(i)); |
- } else { |
- Label next_map; |
- __ j(not_equal, &next_map, Label::kNear); |
- __ mov(transition_map(), Immediate(transitioned_maps->at(i))); |
- __ jmp(handler_stubs->at(i), RelocInfo::CODE_TARGET); |
- __ bind(&next_map); |
- } |
- } |
- __ bind(&miss); |
- TailCallBuiltin(masm(), MissBuiltin(kind())); |
- |
- // Return the generated code. |
- return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC); |
-} |
- |
- |
-Register NamedStoreHandlerCompiler::value() { return StoreIC::ValueRegister(); } |
- |
- |
-#undef __ |
-#define __ ACCESS_MASM(masm) |
- |
- |
-void NamedLoadHandlerCompiler::GenerateLoadViaGetter( |
- MacroAssembler* masm, Handle<HeapType> type, Register receiver, |
- Handle<JSFunction> getter) { |
- { |
- FrameScope scope(masm, StackFrame::INTERNAL); |
- |
- if (!getter.is_null()) { |
- // Call the JavaScript getter with the receiver on the stack. |
- if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) { |
- // Swap in the global receiver. |
- __ mov(receiver, |
- FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset)); |
- } |
- __ push(receiver); |
- ParameterCount actual(0); |
- ParameterCount expected(getter); |
- __ InvokeFunction(getter, expected, actual, CALL_FUNCTION, |
- NullCallWrapper()); |
- } else { |
- // If we generate a global code snippet for deoptimization only, remember |
- // the place to continue after deoptimization. |
- masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
- } |
+void PropertyICCompiler::GenerateRuntimeSetProperty(MacroAssembler* masm, |
+ StrictMode strict_mode) { |
+ // Return address is on the stack. |
+ DCHECK(!ebx.is(StoreIC::ReceiverRegister()) && |
+ !ebx.is(StoreIC::NameRegister()) && !ebx.is(StoreIC::ValueRegister())); |
+ __ pop(ebx); |
+ __ push(StoreIC::ReceiverRegister()); |
+ __ push(StoreIC::NameRegister()); |
+ __ push(StoreIC::ValueRegister()); |
+ __ push(Immediate(Smi::FromInt(strict_mode))); |
+ __ push(ebx); // return address |
- // Restore context register. |
- __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
- } |
- __ ret(0); |
+ // Do tail-call to runtime routine. |
+ __ TailCallRuntime(Runtime::kSetProperty, 4, 1); |
} |
#undef __ |
#define __ ACCESS_MASM(masm()) |
- |
-Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal( |
- Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) { |
- Label miss; |
- |
- FrontendHeader(receiver(), name, &miss); |
- // Get the value from the cell. |
- Register result = StoreIC::ValueRegister(); |
- if (masm()->serializer_enabled()) { |
- __ mov(result, Immediate(cell)); |
- __ mov(result, FieldOperand(result, PropertyCell::kValueOffset)); |
- } else { |
- __ mov(result, Operand::ForCell(cell)); |
- } |
- |
- // Check for deleted property if property can actually be deleted. |
- if (is_configurable) { |
- __ cmp(result, factory()->the_hole_value()); |
- __ j(equal, &miss); |
- } else if (FLAG_debug_code) { |
- __ cmp(result, factory()->the_hole_value()); |
- __ Check(not_equal, kDontDeleteCellsCannotContainTheHole); |
- } |
- |
- Counters* counters = isolate()->counters(); |
- __ IncrementCounter(counters->named_load_global_stub(), 1); |
- // The code above already loads the result into the return register. |
- __ ret(0); |
- |
- FrontendFooter(name, &miss); |
- |
- // Return the generated code. |
- return GetCode(kind(), Code::NORMAL, name); |
-} |
- |
- |
Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types, |
CodeHandleList* handlers, |
Handle<Name> name, |
@@ -905,70 +89,29 @@ Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types, |
} |
-#undef __ |
-#define __ ACCESS_MASM(masm) |
- |
- |
-void ElementHandlerCompiler::GenerateLoadDictionaryElement( |
- MacroAssembler* masm) { |
- // ----------- S t a t e ------------- |
- // -- ecx : key |
- // -- edx : receiver |
- // -- esp[0] : return address |
- // ----------------------------------- |
- DCHECK(edx.is(LoadIC::ReceiverRegister())); |
- DCHECK(ecx.is(LoadIC::NameRegister())); |
- Label slow, miss; |
- |
- // This stub is meant to be tail-jumped to, the receiver must already |
- // have been verified by the caller to not be a smi. |
- __ JumpIfNotSmi(ecx, &miss); |
- __ mov(ebx, ecx); |
- __ SmiUntag(ebx); |
- __ mov(eax, FieldOperand(edx, JSObject::kElementsOffset)); |
- |
- // Push receiver on the stack to free up a register for the dictionary |
- // probing. |
- __ push(edx); |
- __ LoadFromNumberDictionary(&slow, eax, ecx, ebx, edx, edi, eax); |
- // Pop receiver before returning. |
- __ pop(edx); |
- __ ret(0); |
- |
- __ bind(&slow); |
- __ pop(edx); |
- |
- // ----------- S t a t e ------------- |
- // -- ecx : key |
- // -- edx : receiver |
- // -- esp[0] : return address |
- // ----------------------------------- |
- TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow); |
- |
+Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic( |
+ MapHandleList* receiver_maps, CodeHandleList* handler_stubs, |
+ MapHandleList* transitioned_maps) { |
+ Label miss; |
+ __ JumpIfSmi(receiver(), &miss, Label::kNear); |
+ __ mov(scratch1(), FieldOperand(receiver(), HeapObject::kMapOffset)); |
+ for (int i = 0; i < receiver_maps->length(); ++i) { |
+ __ cmp(scratch1(), receiver_maps->at(i)); |
+ if (transitioned_maps->at(i).is_null()) { |
+ __ j(equal, handler_stubs->at(i)); |
+ } else { |
+ Label next_map; |
+ __ j(not_equal, &next_map, Label::kNear); |
+ __ mov(transition_map(), Immediate(transitioned_maps->at(i))); |
+ __ jmp(handler_stubs->at(i), RelocInfo::CODE_TARGET); |
+ __ bind(&next_map); |
+ } |
+ } |
__ bind(&miss); |
- // ----------- S t a t e ------------- |
- // -- ecx : key |
- // -- edx : receiver |
- // -- esp[0] : return address |
- // ----------------------------------- |
- TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
-} |
- |
- |
-void PropertyICCompiler::GenerateRuntimeSetProperty(MacroAssembler* masm, |
- StrictMode strict_mode) { |
- // Return address is on the stack. |
- DCHECK(!ebx.is(StoreIC::ReceiverRegister()) && |
- !ebx.is(StoreIC::NameRegister()) && !ebx.is(StoreIC::ValueRegister())); |
- __ pop(ebx); |
- __ push(StoreIC::ReceiverRegister()); |
- __ push(StoreIC::NameRegister()); |
- __ push(StoreIC::ValueRegister()); |
- __ push(Immediate(Smi::FromInt(strict_mode))); |
- __ push(ebx); // return address |
+ TailCallBuiltin(masm(), MissBuiltin(kind())); |
- // Do tail-call to runtime routine. |
- __ TailCallRuntime(Runtime::kSetProperty, 4, 1); |
+ // Return the generated code. |
+ return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC); |
} |