[turbofan] Make global variable loads and stores explicit.

src/compiler/js-operator.cc

 // Copyright 2014 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/compiler/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
@@ skipping 231 matching lines @@
   return hash_value(p.feedback());
 }
 
 
 const LoadNamedParameters& LoadNamedParametersOf(const Operator* op) {
   DCHECK_EQ(IrOpcode::kJSLoadNamed, op->opcode());
   return OpParameter<LoadNamedParameters>(op);
 }
 
 
+const LoadNamedParameters& LoadGlobalParametersOf(const Operator* op) {
+  DCHECK_EQ(IrOpcode::kJSLoadGlobal, op->opcode());
+  return OpParameter<LoadNamedParameters>(op);
+}
+
+
 bool operator==(StoreNamedParameters const& lhs,
                 StoreNamedParameters const& rhs) {
   return lhs.language_mode() == rhs.language_mode() &&
          lhs.name() == rhs.name() && lhs.feedback() == rhs.feedback();
 }
 
 
 bool operator!=(StoreNamedParameters const& lhs,
                 StoreNamedParameters const& rhs) {
   return !(lhs == rhs);
 }
 
 
 size_t hash_value(StoreNamedParameters const& p) {
   return base::hash_combine(p.language_mode(), p.name(), p.feedback());
 }
 
 
 std::ostream& operator<<(std::ostream& os, StoreNamedParameters const& p) {
   return os << p.language_mode() << ", " << Brief(*p.name().handle());
 }
 
 
 const StoreNamedParameters& StoreNamedParametersOf(const Operator* op) {
   DCHECK_EQ(IrOpcode::kJSStoreNamed, op->opcode());
   return OpParameter<StoreNamedParameters>(op);
 }
 
 
+const StoreNamedParameters& StoreGlobalParametersOf(const Operator* op) {
+  DCHECK_EQ(IrOpcode::kJSStoreGlobal, op->opcode());
+  return OpParameter<StoreNamedParameters>(op);
+}
+
+
 bool operator==(StorePropertyParameters const& lhs,
                 StorePropertyParameters const& rhs) {
   return lhs.language_mode() == rhs.language_mode() &&
          lhs.feedback() == rhs.feedback();
 }
 
 
 bool operator!=(StorePropertyParameters const& lhs,
                 StorePropertyParameters const& rhs) {
   return !(lhs == rhs);
@@ skipping 192 matching lines @@
 const Operator* JSOperatorBuilder::CallConstruct(int arguments) {
   return new (zone()) Operator1<int>(                       // --
       IrOpcode::kJSCallConstruct, Operator::kNoProperties,  // opcode
       "JSCallConstruct",                                    // name
       arguments, 1, 1, 1, 1, 2,                             // counts
       arguments);                                           // parameter
 }
 
 
 const Operator* JSOperatorBuilder::LoadNamed(const Unique<Name>& name,
-                                             const VectorSlotPair& feedback,
-                                             ContextualMode contextual_mode) {
-  LoadNamedParameters parameters(name, feedback, contextual_mode);
+                                             const VectorSlotPair& feedback) {
+  LoadNamedParameters parameters(name, feedback, NOT_CONTEXTUAL);
   return new (zone()) Operator1<LoadNamedParameters>(   // --
       IrOpcode::kJSLoadNamed, Operator::kNoProperties,  // opcode
       "JSLoadNamed",                                    // name
       2, 1, 1, 1, 1, 2,                                 // counts
       parameters);                                      // parameter
 }
 
 
 const Operator* JSOperatorBuilder::LoadProperty(
     const VectorSlotPair& feedback) {
@@ skipping 31 matching lines @@
 
 const Operator* JSOperatorBuilder::DeleteProperty(LanguageMode language_mode) {
   return new (zone()) Operator1<LanguageMode>(               // --
       IrOpcode::kJSDeleteProperty, Operator::kNoProperties,  // opcode
       "JSDeleteProperty",                                    // name
       2, 1, 1, 1, 1, 2,                                      // counts
       language_mode);                                        // parameter
 }
 
 
+const Operator* JSOperatorBuilder::LoadGlobal(const Unique<Name>& name,
+                                              const VectorSlotPair& feedback,
+                                              ContextualMode contextual_mode) {
+  LoadNamedParameters parameters(name, feedback, contextual_mode);
+  return new (zone()) Operator1<LoadNamedParameters>(    // --
+      IrOpcode::kJSLoadGlobal, Operator::kNoProperties,  // opcode
+      "JSLoadGlobal",                                    // name
+      2, 1, 1, 1, 1, 2,                                  // counts
+      parameters);                                       // parameter
+}
+
+
+const Operator* JSOperatorBuilder::StoreGlobal(LanguageMode language_mode,
+                                               const Unique<Name>& name,
+                                               const VectorSlotPair& feedback) {
+  StoreNamedParameters parameters(language_mode, feedback, name);
+  return new (zone()) Operator1<StoreNamedParameters>(    // --
+      IrOpcode::kJSStoreGlobal, Operator::kNoProperties,  // opcode
+      "JSStoreGlobal",                                    // name
+      3, 1, 1, 0, 1, 2,                                   // counts
+      parameters);                                        // parameter
+}
+
+
 const Operator* JSOperatorBuilder::LoadContext(size_t depth, size_t index,
                                                bool immutable) {
   ContextAccess access(depth, index, immutable);
   return new (zone()) Operator1<ContextAccess>(  // --
       IrOpcode::kJSLoadContext,                  // opcode
       Operator::kNoWrite | Operator::kNoThrow,   // flags
       "JSLoadContext",                           // name
       1, 1, 0, 1, 1, 0,                          // counts
       access);                                   // parameter
 }
@@ skipping 69 matching lines @@
   return new (zone()) Operator1<Unique<String>>(                 // --
       IrOpcode::kJSCreateCatchContext, Operator::kNoProperties,  // opcode
       "JSCreateCatchContext",                                    // name
       2, 1, 1, 1, 1, 2,                                          // counts
       name);                                                     // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8