Remove unused VariableLocation::GLOBAL.

src/interpreter/bytecode-generator.cc

 // Copyright 2015 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/interpreter/bytecode-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/code-stubs.h"
 #include "src/compilation-info.h"
 #include "src/compiler.h"
@@ skipping 883 matching lines @@
   if (stmt->scope() != nullptr) {
     VisitDeclarations(stmt->scope()->declarations());
   }
   VisitStatements(stmt->statements());
   if (stmt->labels() != nullptr) block_builder.EndBlock();
 }
 
 void BytecodeGenerator::VisitVariableDeclaration(VariableDeclaration* decl) {
   Variable* variable = decl->proxy()->var();
   switch (variable->location()) {
-    case VariableLocation::GLOBAL:
     case VariableLocation::UNALLOCATED: {
       DCHECK(!variable->binding_needs_init());
       FeedbackVectorSlot slot = decl->proxy()->VariableFeedbackSlot();
       globals_builder()->AddUndefinedDeclaration(slot);
       break;
     }
     case VariableLocation::LOCAL:
       if (variable->binding_needs_init()) {
         Register destination(variable->index());
         builder()->LoadTheHole().StoreAccumulatorInRegister(destination);
@@ skipping 26 matching lines @@
       break;
     }
     case VariableLocation::MODULE:
       UNREACHABLE();
   }
 }
 
 void BytecodeGenerator::VisitFunctionDeclaration(FunctionDeclaration* decl) {
   Variable* variable = decl->proxy()->var();
   switch (variable->location()) {
-    case VariableLocation::GLOBAL:
     case VariableLocation::UNALLOCATED: {
       FeedbackVectorSlot slot = decl->proxy()->VariableFeedbackSlot();
       globals_builder()->AddFunctionDeclaration(slot, decl->fun());
       break;
     }
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL: {
       VisitForAccumulatorValue(decl->fun());
       DCHECK(variable->mode() == LET || variable->mode() == VAR ||
              variable->mode() == CONST);
@@ skipping 984 matching lines @@
       // The parameter indices are shifted by 1 (receiver is variable
       // index -1 but is parameter index 0 in BytecodeArrayBuilder).
       Register source = builder()->Parameter(variable->index() + 1);
       // We need to load the variable into the accumulator, even when in a
       // VisitForRegisterScope, in order to avoid register aliasing if
       // subsequent expressions assign to the same variable.
       builder()->LoadAccumulatorWithRegister(source);
       BuildHoleCheckForVariableLoad(variable);
       break;
     }
-    case VariableLocation::GLOBAL:
     case VariableLocation::UNALLOCATED: {
       builder()->LoadGlobal(feedback_index(slot), typeof_mode);
       break;
     }
     case VariableLocation::CONTEXT: {
       int depth = execution_context()->ContextChainDepth(variable->scope());
       ContextScope* context = execution_context()->Previous(depth);
       Register context_reg;
       if (context) {
         context_reg = context->reg();
@@ skipping 160 matching lines @@
         builder()->LoadAccumulatorWithRegister(value_temp);
       }
 
       if (mode != CONST || op == Token::INIT) {
         builder()->StoreAccumulatorInRegister(destination);
       } else if (variable->throw_on_const_assignment(language_mode())) {
         builder()->CallRuntime(Runtime::kThrowConstAssignError, Register(), 0);
       }
       break;
     }
-    case VariableLocation::GLOBAL:
     case VariableLocation::UNALLOCATED: {
       builder()->StoreGlobal(variable->name(), feedback_index(slot),
                              language_mode());
       break;
     }
     case VariableLocation::CONTEXT: {
       int depth = execution_context()->ContextChainDepth(variable->scope());
       ContextScope* context = execution_context()->Previous(depth);
       Register context_reg;
 
@@ skipping 677 matching lines @@
     Register object = VisitForRegisterValue(property->obj());
     VisitForAccumulatorValue(property->key());
     builder()->Delete(object, language_mode());
   } else if (expr->expression()->IsVariableProxy()) {
     // Delete of an unqualified identifier is allowed in sloppy mode but is
     // not allowed in strict mode. Deleting 'this' is allowed in both modes.
     VariableProxy* proxy = expr->expression()->AsVariableProxy();
     Variable* variable = proxy->var();
     DCHECK(is_sloppy(language_mode()) || variable->is_this());
     switch (variable->location()) {
-      case VariableLocation::GLOBAL:
       case VariableLocation::UNALLOCATED: {
         // Global var, let, const or variables not explicitly declared.
         Register native_context = register_allocator()->NewRegister();
         Register global_object = register_allocator()->NewRegister();
         builder()
             ->LoadContextSlot(execution_context()->reg(),
                               Context::NATIVE_CONTEXT_INDEX)
             .StoreAccumulatorInRegister(native_context)
             .LoadContextSlot(native_context, Context::EXTENSION_INDEX)
             .StoreAccumulatorInRegister(global_object)
@@ skipping 544 matching lines @@
   return execution_context()->scope()->language_mode();
 }
 
 int BytecodeGenerator::feedback_index(FeedbackVectorSlot slot) const {
   return TypeFeedbackVector::GetIndex(slot);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8