deps: update V8 to 6.1.534.36

PR-URL: https://github.com/nodejs/node/pull/14730
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

1 files changed, 0 insertions, 456 deletions

diff --git a/deps/v8/src/ic/x87/handler-compiler-x87.cc b/deps/v8/src/ic/x87/handler-compiler-x87.cc
deleted file mode 100644
index dc572a19cc..0000000000
--- a/deps/v8/src/ic/x87/handler-compiler-x87.cc
+++ /dev/null
@@ -1,456 +0,0 @@
-// 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.
-
-#if V8_TARGET_ARCH_X87
-
-#include "src/ic/handler-compiler.h"
-
-#include "src/api-arguments.h"
-#include "src/field-type.h"
-#include "src/ic/call-optimization.h"
-#include "src/ic/ic.h"
-#include "src/isolate-inl.h"
-
-namespace v8 {
-namespace internal {
-
-#define __ ACCESS_MASM(masm)
-
-void NamedLoadHandlerCompiler::GenerateLoadViaGetterForDeopt(
-    MacroAssembler* masm) {
-  {
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    // 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.
-    __ pop(esi);
-  }
-  __ ret(0);
-}
-
-
-void PropertyHandlerCompiler::PushVectorAndSlot(Register vector,
-                                                Register slot) {
-  MacroAssembler* masm = this->masm();
-  STATIC_ASSERT(LoadWithVectorDescriptor::kSlot <
-                LoadWithVectorDescriptor::kVector);
-  STATIC_ASSERT(StoreWithVectorDescriptor::kSlot <
-                StoreWithVectorDescriptor::kVector);
-  STATIC_ASSERT(StoreTransitionDescriptor::kSlot <
-                StoreTransitionDescriptor::kVector);
-  __ push(slot);
-  __ push(vector);
-}
-
-
-void PropertyHandlerCompiler::PopVectorAndSlot(Register vector, Register slot) {
-  MacroAssembler* masm = this->masm();
-  __ pop(vector);
-  __ pop(slot);
-}
-
-
-void PropertyHandlerCompiler::DiscardVectorAndSlot() {
-  MacroAssembler* masm = this->masm();
-  // Remove vector and slot.
-  __ add(esp, Immediate(2 * kPointerSize));
-}
-
-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),
-            Immediate(kInterceptorOrAccessCheckNeededMask));
-  __ j(not_zero, miss_label);
-
-  // Check that receiver is a JSObject.
-  __ CmpInstanceType(scratch0, FIRST_JS_RECEIVER_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);
-}
-
-// 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::GenerateApiAccessorCall(
-    MacroAssembler* masm, const CallOptimization& optimization,
-    Handle<Map> receiver_map, Register receiver, Register scratch,
-    bool is_store, Register store_parameter, Register accessor_holder,
-    int accessor_index) {
-  DCHECK(!accessor_holder.is(scratch));
-  // Copy return value.
-  __ pop(scratch);
-
-  if (is_store) {
-    // Discard stack arguments.
-    __ add(esp, Immediate(StoreWithVectorDescriptor::kStackArgumentsCount *
-                          kPointerSize));
-  }
-  // Write the receiver and arguments to stack frame.
-  __ push(receiver);
-  if (is_store) {
-    DCHECK(!AreAliased(receiver, scratch, store_parameter));
-    __ push(store_parameter);
-  }
-  __ push(scratch);
-  // Stack now matches JSFunction abi.
-  DCHECK(optimization.is_simple_api_call());
-
-  // Abi for CallApiCallbackStub.
-  Register callee = edi;
-  Register data = ebx;
-  Register holder = ecx;
-  Register api_function_address = edx;
-  scratch = no_reg;
-
-  // Put callee in place.
-  __ LoadAccessor(callee, accessor_holder, accessor_index,
-                  is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER);
-
-  // Put holder in place.
-  CallOptimization::HolderLookup holder_lookup;
-  int holder_depth = 0;
-  optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup,
-                                          &holder_depth);
-  switch (holder_lookup) {
-    case CallOptimization::kHolderIsReceiver:
-      __ Move(holder, receiver);
-      break;
-    case CallOptimization::kHolderFound:
-      __ mov(holder, FieldOperand(receiver, HeapObject::kMapOffset));
-      __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset));
-      for (int i = 1; i < holder_depth; i++) {
-        __ mov(holder, FieldOperand(holder, HeapObject::kMapOffset));
-        __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset));
-      }
-      break;
-    case CallOptimization::kHolderNotFound:
-      UNREACHABLE();
-      break;
-  }
-
-  Isolate* isolate = masm->isolate();
-  Handle<CallHandlerInfo> api_call_info = optimization.api_call_info();
-  bool call_data_undefined = false;
-  // Put call data in place.
-  if (api_call_info->data()->IsUndefined(isolate)) {
-    call_data_undefined = true;
-    __ mov(data, Immediate(isolate->factory()->undefined_value()));
-  } else {
-    if (optimization.is_constant_call()) {
-      __ mov(data, FieldOperand(callee, JSFunction::kSharedFunctionInfoOffset));
-      __ mov(data, FieldOperand(data, SharedFunctionInfo::kFunctionDataOffset));
-      __ mov(data, FieldOperand(data, FunctionTemplateInfo::kCallCodeOffset));
-    } else {
-      __ mov(data, FieldOperand(callee, FunctionTemplateInfo::kCallCodeOffset));
-    }
-    __ mov(data, FieldOperand(data, CallHandlerInfo::kDataOffset));
-  }
-
-  // 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.
-  CallApiCallbackStub stub(isolate, is_store, call_data_undefined,
-                           !optimization.is_constant_call());
-  __ 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::EnsureEmptyPropertyCell(
-      global, name, PropertyCellType::kInvalidated);
-  Isolate* isolate = masm->isolate();
-  DCHECK(cell->value()->IsTheHole(isolate));
-  Handle<WeakCell> weak_cell = isolate->factory()->NewWeakCell(cell);
-  __ LoadWeakValue(scratch, weak_cell, miss);
-  __ cmp(FieldOperand(scratch, PropertyCell::kValueOffset),
-         Immediate(isolate->factory()->the_hole_value()));
-  __ j(not_equal, miss);
-}
-
-
-void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
-    MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder,
-    int accessor_index, int expected_arguments, Register scratch) {
-  // ----------- S t a t e -------------
-  //  -- esp[12] : value
-  //  -- esp[8]  : slot
-  //  -- esp[4]  : vector
-  //  -- esp[0]  : return address
-  // -----------------------------------
-  __ LoadParameterFromStack<Descriptor>(value(), Descriptor::kValue);
-
-  {
-    FrameScope scope(masm, StackFrame::INTERNAL);
-
-    // Save context register
-    __ push(esi);
-    // Save value register, so we can restore it later.
-    __ push(value());
-
-    if (accessor_index >= 0) {
-      DCHECK(!holder.is(scratch));
-      DCHECK(!receiver.is(scratch));
-      DCHECK(!value().is(scratch));
-      // Call the JavaScript setter with receiver and value on the stack.
-      if (map->IsJSGlobalObjectMap()) {
-        __ mov(scratch,
-               FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
-        receiver = scratch;
-      }
-      __ push(receiver);
-      __ push(value());
-      __ LoadAccessor(edi, holder, accessor_index, ACCESSOR_SETTER);
-      __ Set(eax, 1);
-      __ Call(masm->isolate()->builtins()->CallFunction(
-                  ConvertReceiverMode::kNotNullOrUndefined),
-              RelocInfo::CODE_TARGET);
-    } 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.
-    __ pop(esi);
-  }
-  if (accessor_index >= 0) {
-    __ ret(StoreWithVectorDescriptor::kStackArgumentsCount * kPointerSize);
-  } else {
-    // If we generate a global code snippet for deoptimization only, don't try
-    // to drop stack arguments for the StoreIC because they are not a part of
-    // expression stack and deoptimizer does not reconstruct them.
-    __ ret(0);
-  }
-}
-
-#undef __
-#define __ ACCESS_MASM(masm())
-
-
-void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label,
-                                                    Handle<Name> name) {
-  if (!label->is_unused()) {
-    __ bind(label);
-    __ mov(this->name(), Immediate(name));
-  }
-}
-
-void PropertyHandlerCompiler::GenerateAccessCheck(
-    Handle<WeakCell> native_context_cell, Register scratch1, Register scratch2,
-    Label* miss, bool compare_native_contexts_only) {
-  Label done;
-  // Load current native context.
-  __ mov(scratch1, NativeContextOperand());
-  // Load expected native context.
-  __ LoadWeakValue(scratch2, native_context_cell, miss);
-  __ cmp(scratch1, scratch2);
-
-  if (!compare_native_contexts_only) {
-    __ j(equal, &done);
-
-    // Compare security tokens of current and expected native contexts.
-    __ mov(scratch1, ContextOperand(scratch1, Context::SECURITY_TOKEN_INDEX));
-    __ mov(scratch2, ContextOperand(scratch2, Context::SECURITY_TOKEN_INDEX));
-    __ cmp(scratch1, scratch2);
-  }
-  __ j(not_equal, miss);
-
-  __ bind(&done);
-}
-
-Register PropertyHandlerCompiler::CheckPrototypes(
-    Register object_reg, Register holder_reg, Register scratch1,
-    Register scratch2, Handle<Name> name, Label* miss) {
-  Handle<Map> receiver_map = map();
-
-  // 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));
-
-  Handle<Cell> validity_cell =
-      Map::GetOrCreatePrototypeChainValidityCell(receiver_map, isolate());
-  if (!validity_cell.is_null()) {
-    DCHECK_EQ(Smi::FromInt(Map::kPrototypeChainValid), validity_cell->value());
-    // Operand::ForCell(...) points to the cell's payload!
-    __ cmp(Operand::ForCell(validity_cell),
-           Immediate(Smi::FromInt(Map::kPrototypeChainValid)));
-    __ j(not_equal, miss);
-  }
-
-  // Keep track of the current object in register reg.
-  Register reg = object_reg;
-  int depth = 0;
-
-  Handle<JSObject> current = Handle<JSObject>::null();
-  if (receiver_map->IsJSGlobalObjectMap()) {
-    current = isolate()->global_object();
-  }
-
-  Handle<Map> current_map(receiver_map->GetPrototypeChainRootMap(isolate()),
-                          isolate());
-  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;
-
-    if (current_map->IsJSGlobalObjectMap()) {
-      GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current),
-                                name, scratch2, miss);
-    } else if (current_map->is_dictionary_map()) {
-      DCHECK(!current_map->IsJSGlobalProxyMap());  // Proxy maps are fast.
-      DCHECK(name->IsUniqueName());
-      DCHECK(current.is_null() ||
-             current->property_dictionary()->FindEntry(name) ==
-                 NameDictionary::kNotFound);
-
-      if (depth > 1) {
-        Handle<WeakCell> weak_cell =
-            Map::GetOrCreatePrototypeWeakCell(current, isolate());
-        __ LoadWeakValue(reg, weak_cell, miss);
-      }
-      GenerateDictionaryNegativeLookup(masm(), miss, reg, name, scratch1,
-                                       scratch2);
-    }
-
-    reg = holder_reg;  // From now on the object will be in holder_reg.
-    // Go to the next object in the prototype chain.
-    current = handle(JSObject::cast(current_map->prototype()));
-    current_map = handle(current->map());
-  }
-
-  DCHECK(!current_map->IsJSGlobalProxyMap());
-
-  // Log the check depth.
-  LOG(isolate(), IntEvent("check-maps-depth", depth + 1));
-
-  if (depth != 0) {
-    Handle<WeakCell> weak_cell =
-        Map::GetOrCreatePrototypeWeakCell(current, isolate());
-    __ LoadWeakValue(reg, weak_cell, 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);
-    if (IC::ShouldPushPopSlotAndVector(kind())) {
-      DCHECK(kind() == Code::LOAD_IC);
-      PopVectorAndSlot();
-    }
-    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);
-    DCHECK(!IC::ShouldPushPopSlotAndVector(kind()));
-    TailCallBuiltin(masm(), MissBuiltin(kind()));
-    __ bind(&success);
-  }
-}
-
-void NamedStoreHandlerCompiler::ZapStackArgumentsRegisterAliases() {
-  // Zap register aliases of the arguments passed on the stack to ensure they
-  // are properly loaded by the handler (debug-only).
-  STATIC_ASSERT(Descriptor::kPassLastArgsOnStack);
-  STATIC_ASSERT(Descriptor::kStackArgumentsCount == 3);
-  __ mov(Descriptor::ValueRegister(), Immediate(kDebugZapValue));
-  __ mov(Descriptor::SlotRegister(), Immediate(kDebugZapValue));
-  __ mov(Descriptor::VectorRegister(), Immediate(kDebugZapValue));
-}
-
-Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
-    Handle<JSObject> object, Handle<Name> name, Handle<AccessorInfo> callback,
-    LanguageMode language_mode) {
-  Register holder_reg = Frontend(name);
-  __ LoadParameterFromStack<Descriptor>(value(), Descriptor::kValue);
-
-  __ pop(scratch1());  // remove the return address
-  // Discard stack arguments.
-  __ add(esp, Immediate(StoreWithVectorDescriptor::kStackArgumentsCount *
-                        kPointerSize));
-  __ push(receiver());
-  __ push(holder_reg);
-  // If the callback cannot leak, then push the callback directly,
-  // otherwise wrap it in a weak cell.
-  if (callback->data()->IsUndefined(isolate()) || callback->data()->IsSmi()) {
-    __ Push(callback);
-  } else {
-    Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback);
-    __ Push(cell);
-  }
-  __ Push(name);
-  __ push(value());
-  __ push(Immediate(Smi::FromInt(language_mode)));
-  __ push(scratch1());  // restore return address
-
-  // Do tail-call to the runtime system.
-  __ TailCallRuntime(Runtime::kStoreCallbackProperty);
-
-  // Return the generated code.
-  return GetCode(kind(), name);
-}
-
-
-Register NamedStoreHandlerCompiler::value() {
-  return StoreDescriptor::ValueRegister();
-}
-
-
-#undef __
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_TARGET_ARCH_X87