Crankshaft part of the 'loads and stores to global vars through property cell shortcuts' feature.

src/arm64/lithium-codegen-arm64.cc

 // Copyright 2013 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"
 
 #include "src/arm64/lithium-codegen-arm64.h"
 #include "src/arm64/lithium-gap-resolver-arm64.h"
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 3357 matching lines @@
   DCHECK(ToRegister(instr->result()).Is(x0));
   __ Mov(LoadDescriptor::NameRegister(), Operand(instr->name()));
   EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
   Handle<Code> ic =
       CodeFactory::LoadICInOptimizedCode(isolate(), instr->typeof_mode(),
                                          SLOPPY, PREMONOMORPHIC).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
+void LCodeGen::DoLoadGlobalViaContext(LLoadGlobalViaContext* instr) {
+  DCHECK(ToRegister(instr->context()).is(cp));
+  DCHECK(ToRegister(instr->result()).is(x0));
+
+  __ Mov(LoadGlobalViaContextDescriptor::DepthRegister(),
+         Operand(Smi::FromInt(instr->depth())));
+  __ Mov(LoadGlobalViaContextDescriptor::SlotRegister(),
+         Operand(Smi::FromInt(instr->slot_index())));
+  __ Mov(LoadGlobalViaContextDescriptor::NameRegister(),
+         Operand(instr->name()));
+
+  Handle<Code> stub =
+      CodeFactory::LoadGlobalViaContext(isolate(), instr->depth()).code();
+  CallCode(stub, RelocInfo::CODE_TARGET, instr);
+}
+
+
 MemOperand LCodeGen::PrepareKeyedExternalArrayOperand(
     Register key,
     Register base,
     Register scratch,
     bool key_is_smi,
     bool key_is_constant,
     int constant_key,
     ElementsKind elements_kind,
     int base_offset) {
   int element_size_shift = ElementsKindToShiftSize(elements_kind);
@@ skipping 2118 matching lines @@
   }
 
   __ Mov(StoreDescriptor::NameRegister(), Operand(instr->name()));
   Handle<Code> ic = CodeFactory::StoreICInOptimizedCode(
                         isolate(), instr->language_mode(),
                         instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
+void LCodeGen::DoStoreGlobalViaContext(LStoreGlobalViaContext* instr) {
+  DCHECK(ToRegister(instr->context()).is(cp));
+  DCHECK(ToRegister(instr->value())
+             .is(StoreGlobalViaContextDescriptor::ValueRegister()));
+
+  __ Mov(StoreGlobalViaContextDescriptor::DepthRegister(),
+         Operand(Smi::FromInt(instr->depth())));
+  __ Mov(StoreGlobalViaContextDescriptor::SlotRegister(),
+         Operand(Smi::FromInt(instr->slot_index())));
+  __ Mov(StoreGlobalViaContextDescriptor::NameRegister(),
+         Operand(instr->name()));
+
+  Handle<Code> stub =
+      CodeFactory::StoreGlobalViaContext(isolate(), instr->depth(),
+                                         instr->language_mode()).code();
+  CallCode(stub, RelocInfo::CODE_TARGET, instr);
+}
+
+
 void LCodeGen::DoStringAdd(LStringAdd* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->left()).Is(x1));
   DCHECK(ToRegister(instr->right()).Is(x0));
   StringAddStub stub(isolate(),
                      instr->hydrogen()->flags(),
                      instr->hydrogen()->pretenure_flag());
   CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
 }
 
@@ skipping 605 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 }  // namespace internal
 }  // namespace v8