Revision: 23380
Author: [email protected]
Date: Tue Aug 26 03:56:24 2014 UTC
Log: X87: Move handler compilers to handler-compiler
port r23346.
original commit message:
Move handler compilers to handler-compiler
BUG=
[email protected]
Review URL: https://codereview.chromium.org/504043002
Patch from Chunyang Dai <[email protected]>.
https://code.google.com/p/v8/source/detail?r=23380
Added:
/branches/bleeding_edge/src/ic/x87/handler-compiler-x87.cc
Modified:
/branches/bleeding_edge/src/ic/x87/ic-compiler-x87.cc
/branches/bleeding_edge/src/x87/code-stubs-x87.cc
/branches/bleeding_edge/tools/gyp/v8.gyp
=======================================
--- /dev/null
+++ /branches/bleeding_edge/src/ic/x87/handler-compiler-x87.cc Tue Aug 26
03:56:24 2014 UTC
@@ -0,0 +1,864 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/v8.h"
+
+#if V8_TARGET_ARCH_X87
+
+#include "src/ic/call-optimization.h"
+#include "src/ic/handler-compiler.h"
+
+namespace v8 {
+namespace internal {
+
+#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);
+
+ __ bind(&miss);
+ // ----------- S t a t e -------------
+ // -- ecx : key
+ // -- edx : receiver
+ // -- esp[0] : return address
+ // -----------------------------------
+ TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
+}
+
+
+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());
+ }
+
+ // Restore context register.
+ __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+ }
+ __ ret(0);
+}
+
+
+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);
+}
+
+
+// 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);
+}
+
+
+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);
+}
+
+
+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);
+}
+
+
+#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);
+ __ push(value_reg);
+ __ fild_s(Operand(esp, 0));
+ __ pop(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);
+ __ fld_d(FieldOperand(value_reg, HeapNumber::kValueOffset));
+
+ __ bind(&do_store);
+ __ fstp_d(FieldOperand(storage_reg, HeapNumber::kValueOffset));
+ }
+
+ // 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,
+ 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,
+ 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,
+ 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);
+}
+
+
+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);
+}
+
+
+Register NamedStoreHandlerCompiler::value() { return
StoreIC::ValueRegister(); }
+
+
+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);
+}
+
+
+#undef __
+}
+} // namespace v8::internal
+
+#endif // V8_TARGET_ARCH_X87
=======================================
--- /branches/bleeding_edge/src/ic/x87/ic-compiler-x87.cc Mon Aug 25
12:40:11 2014 UTC
+++ /branches/bleeding_edge/src/ic/x87/ic-compiler-x87.cc Tue Aug 26
03:56:24 2014 UTC
@@ -6,7 +6,6 @@
#if V8_TARGET_ARCH_X87
-#include "src/ic/call-optimization.h"
#include "src/ic/ic-compiler.h"
namespace v8 {
@@ -14,844 +13,27 @@
#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));
+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
- 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);
+ // Do tail-call to runtime routine.
+ __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
}
#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);
- __ push(value_reg);
- __ fild_s(Operand(esp, 0));
- __ pop(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);
- __ fld_d(FieldOperand(value_reg, HeapNumber::kValueOffset));
-
- __ bind(&do_store);
- __ fstp_d(FieldOperand(storage_reg, HeapNumber::kValueOffset));
- }
-
- // 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,
- 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,
- 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,
- 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());
- }
-
- // Restore context register.
- __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
- }
- __ ret(0);
-}
-
-
-#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,
@@ -907,70 +89,29 @@
}
-#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);
-}
+ TailCallBuiltin(masm(), MissBuiltin(kind()));
-
-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
-
- // Do tail-call to runtime routine.
- __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
+ // Return the generated code.
+ return GetCode(kind(), Code::NORMAL, factory()->empty_string(),
POLYMORPHIC);
}
=======================================
--- /branches/bleeding_edge/src/x87/code-stubs-x87.cc Mon Aug 25 13:09:02
2014 UTC
+++ /branches/bleeding_edge/src/x87/code-stubs-x87.cc Tue Aug 26 03:56:24
2014 UTC
@@ -9,7 +9,7 @@
#include "src/bootstrapper.h"
#include "src/code-stubs.h"
#include "src/codegen.h"
-#include "src/ic/ic-compiler.h"
+#include "src/ic/handler-compiler.h"
#include "src/isolate.h"
#include "src/jsregexp.h"
#include "src/regexp-macro-assembler.h"
=======================================
--- /branches/bleeding_edge/tools/gyp/v8.gyp Mon Aug 25 15:15:26 2014 UTC
+++ /branches/bleeding_edge/tools/gyp/v8.gyp Tue Aug 26 03:56:24 2014 UTC
@@ -923,6 +923,7 @@
'../../src/x87/regexp-macro-assembler-x87.cc',
'../../src/x87/regexp-macro-assembler-x87.h',
'../../src/ic/x87/access-compiler-x87.cc',
+ '../../src/ic/x87/handler-compiler-x87.cc',
'../../src/ic/x87/ic-x87.cc',
'../../src/ic/x87/ic-compiler-x87.cc',
'../../src/ic/x87/stub-cache-x87.cc',
--
--
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