Introduce a hydrogen value for contexts, support context slot assignment.

src/x64/lithium-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 244 matching lines @@
 }
 
 
 void LUnaryMathOperation::PrintDataTo(StringStream* stream) {
   stream->Add("/%s ", hydrogen()->OpName());
   InputAt(0)->PrintTo(stream);
 }
 
 
 void LLoadContextSlot::PrintDataTo(StringStream* stream) {
-  stream->Add("(%d, %d)", context_chain_length(), slot_index());
+  InputAt(0)->PrintTo(stream);
+  stream->Add("[%d]", slot_index());
 }
 
 
 void LCallKeyed::PrintDataTo(StringStream* stream) {
   stream->Add("[ecx] #%d / ", arity());
 }
 
 
 void LCallNamed::PrintDataTo(StringStream* stream) {
   SmartPointer<char> name_string = name()->ToCString();
@@ skipping 766 matching lines @@
 }
 
 
 LInstruction* LChunkBuilder::DoPushArgument(HPushArgument* instr) {
   ++argument_count_;
   LOperand* argument = UseOrConstant(instr->argument());
   return new LPushArgument(argument);
 }
 
 
+LInstruction* LChunkBuilder::DoContext(HContext* instr) {
+  Abort("Unimplemented: DoContext");
+  return NULL;
+}
+
+
+LInstruction* LChunkBuilder::DoOuterContext(HOuterContext* instr) {
+  Abort("Unimplemented: DoOuterContext");
+  return NULL;
+}
+
+
 LInstruction* LChunkBuilder::DoGlobalObject(HGlobalObject* instr) {
   return DefineAsRegister(new LGlobalObject);
 }
 
 
 LInstruction* LChunkBuilder::DoGlobalReceiver(HGlobalReceiver* instr) {
   return DefineAsRegister(new LGlobalReceiver);
 }
 
 
@@ skipping 403 matching lines @@
 
 LInstruction* LChunkBuilder::DoLoadGlobal(HLoadGlobal* instr) {
   LLoadGlobal* result = new LLoadGlobal;
   return instr->check_hole_value()
       ? AssignEnvironment(DefineAsRegister(result))
       : DefineAsRegister(result);
 }
 
 
 LInstruction* LChunkBuilder::DoStoreGlobal(HStoreGlobal* instr) {
-  return new LStoreGlobal(UseRegisterAtStart(instr->value()));}
+  return new LStoreGlobal(UseRegisterAtStart(instr->value()));
+}
 
 
 LInstruction* LChunkBuilder::DoLoadContextSlot(HLoadContextSlot* instr) {
   Abort("Unimplemented: %s", "DoLoadContextSlot");
   return NULL;
 }
 
 
+LInstruction* LChunkBuilder::DoStoreContextSlot(HStoreContextSlot* instr) {
+  Abort("Unimplemented: DoStoreContextSlot");
+  return NULL;
+}
+
+
 LInstruction* LChunkBuilder::DoLoadNamedField(HLoadNamedField* instr) {
   ASSERT(instr->representation().IsTagged());
   LOperand* obj = UseRegisterAtStart(instr->object());
   return DefineAsRegister(new LLoadNamedField(obj));
 }
 
 
 LInstruction* LChunkBuilder::DoLoadNamedGeneric(HLoadNamedGeneric* instr) {
   Abort("Unimplemented: %s", "DoLoadNamedGeneric");
   return NULL;
@@ skipping 205 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
   Abort("Unimplemented: %s", "DoLeaveInlined");
   return NULL;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64