Remove strong mode support from property loads.

src/interpreter/bytecode-array-builder.cc

Index: src/interpreter/bytecode-array-builder.cc
diff --git a/src/interpreter/bytecode-array-builder.cc b/src/interpreter/bytecode-array-builder.cc
index 6a6981bd9cdcc4a9c1dde002b4753064dcccbfae..5e7770532d6a67233a82cfc942aec97eb040e895 100644
--- a/src/interpreter/bytecode-array-builder.cc
+++ b/src/interpreter/bytecode-array-builder.cc
@@ -364,11 +364,10 @@ void BytecodeArrayBuilder::MoveRegisterUntranslated(Register from,
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::LoadGlobal(
-    const Handle<String> name, int feedback_slot, LanguageMode language_mode,
-    TypeofMode typeof_mode) {
-  // TODO(rmcilroy): Potentially store language and typeof information in an
+    const Handle<String> name, int feedback_slot, TypeofMode typeof_mode) {
+  // TODO(rmcilroy): Potentially store typeof information in an
   // operand rather than having extra bytecodes.
-  Bytecode bytecode = BytecodeForLoadGlobal(language_mode, typeof_mode);
+  Bytecode bytecode = BytecodeForLoadGlobal(typeof_mode);
   size_t name_index = GetConstantPoolEntry(name);
   if (FitsInIdx8Operand(name_index) && FitsInIdx8Operand(feedback_slot)) {
     Output(bytecode, static_cast<uint8_t>(name_index),
@@ -468,16 +467,15 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::StoreLookupSlot(
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::LoadNamedProperty(
-    Register object, const Handle<Name> name, int feedback_slot,
-    LanguageMode language_mode) {
-  Bytecode bytecode = BytecodeForLoadIC(language_mode);
+    Register object, const Handle<Name> name, int feedback_slot) {
   size_t name_index = GetConstantPoolEntry(name);
   if (FitsInIdx8Operand(name_index) && FitsInIdx8Operand(feedback_slot)) {
-    Output(bytecode, object.ToRawOperand(), static_cast<uint8_t>(name_index),
+    Output(Bytecode::kLoadIC, object.ToRawOperand(),
+           static_cast<uint8_t>(name_index),
            static_cast<uint8_t>(feedback_slot));
   } else if (FitsInIdx16Operand(name_index) &&
              FitsInIdx16Operand(feedback_slot)) {
-    Output(BytecodeForWideOperands(bytecode), object.ToRawOperand(),
+    Output(Bytecode::kLoadICWide, object.ToRawOperand(),
            static_cast<uint16_t>(name_index),
            static_cast<uint16_t>(feedback_slot));
   } else {
@@ -486,15 +484,13 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::LoadNamedProperty(
   return *this;
 }
 
-
 BytecodeArrayBuilder& BytecodeArrayBuilder::LoadKeyedProperty(
-    Register object, int feedback_slot, LanguageMode language_mode) {
-  Bytecode bytecode = BytecodeForKeyedLoadIC(language_mode);
+    Register object, int feedback_slot) {
   if (FitsInIdx8Operand(feedback_slot)) {
-    Output(bytecode, object.ToRawOperand(),
+    Output(Bytecode::kKeyedLoadIC, object.ToRawOperand(),
            static_cast<uint8_t>(feedback_slot));
   } else if (FitsInIdx16Operand(feedback_slot)) {
-    Output(BytecodeForWideOperands(bytecode), object.ToRawOperand(),
+    Output(Bytecode::kKeyedLoadICWide, object.ToRawOperand(),
            static_cast<uint16_t>(feedback_slot));
   } else {
     UNIMPLEMENTED();
@@ -1429,14 +1425,10 @@ Bytecode BytecodeArrayBuilder::BytecodeForCompareOperation(Token::Value op) {
 // static
 Bytecode BytecodeArrayBuilder::BytecodeForWideOperands(Bytecode bytecode) {
   switch (bytecode) {
-    case Bytecode::kLoadICSloppy:
-      return Bytecode::kLoadICSloppyWide;
-    case Bytecode::kLoadICStrict:
-      return Bytecode::kLoadICStrictWide;
-    case Bytecode::kKeyedLoadICSloppy:
-      return Bytecode::kKeyedLoadICSloppyWide;
-    case Bytecode::kKeyedLoadICStrict:
-      return Bytecode::kKeyedLoadICStrictWide;
+    case Bytecode::kLoadIC:
+      return Bytecode::kLoadICWide;
+    case Bytecode::kKeyedLoadIC:
+      return Bytecode::kKeyedLoadICWide;
     case Bytecode::kStoreICSloppy:
       return Bytecode::kStoreICSloppyWide;
     case Bytecode::kStoreICStrict:
@@ -1445,14 +1437,10 @@ Bytecode BytecodeArrayBuilder::BytecodeForWideOperands(Bytecode bytecode) {
       return Bytecode::kKeyedStoreICSloppyWide;
     case Bytecode::kKeyedStoreICStrict:
       return Bytecode::kKeyedStoreICStrictWide;
-    case Bytecode::kLdaGlobalSloppy:
-      return Bytecode::kLdaGlobalSloppyWide;
-    case Bytecode::kLdaGlobalStrict:
-      return Bytecode::kLdaGlobalStrictWide;
-    case Bytecode::kLdaGlobalInsideTypeofSloppy:
-      return Bytecode::kLdaGlobalInsideTypeofSloppyWide;
-    case Bytecode::kLdaGlobalInsideTypeofStrict:
-      return Bytecode::kLdaGlobalInsideTypeofStrictWide;
+    case Bytecode::kLdaGlobal:
+      return Bytecode::kLdaGlobalWide;
+    case Bytecode::kLdaGlobalInsideTypeof:
+      return Bytecode::kLdaGlobalInsideTypeofWide;
     case Bytecode::kStaGlobalSloppy:
       return Bytecode::kStaGlobalSloppyWide;
     case Bytecode::kStaGlobalStrict:
@@ -1473,39 +1461,6 @@ Bytecode BytecodeArrayBuilder::BytecodeForWideOperands(Bytecode bytecode) {
 
 
 // static
-Bytecode BytecodeArrayBuilder::BytecodeForLoadIC(LanguageMode language_mode) {
-  switch (language_mode) {
-    case SLOPPY:
-      return Bytecode::kLoadICSloppy;
-    case STRICT:
-      return Bytecode::kLoadICStrict;
-    case STRONG:
-      UNIMPLEMENTED();
-    default:
-      UNREACHABLE();
-  }
-  return static_cast<Bytecode>(-1);
-}
-
-
-// static
-Bytecode BytecodeArrayBuilder::BytecodeForKeyedLoadIC(
-    LanguageMode language_mode) {
-  switch (language_mode) {
-    case SLOPPY:
-      return Bytecode::kKeyedLoadICSloppy;
-    case STRICT:
-      return Bytecode::kKeyedLoadICStrict;
-    case STRONG:
-      UNIMPLEMENTED();
-    default:
-      UNREACHABLE();
-  }
-  return static_cast<Bytecode>(-1);
-}
-
-
-// static
 Bytecode BytecodeArrayBuilder::BytecodeForStoreIC(LanguageMode language_mode) {
   switch (language_mode) {
     case SLOPPY:
@@ -1539,23 +1494,9 @@ Bytecode BytecodeArrayBuilder::BytecodeForKeyedStoreIC(
 
 
 // static
-Bytecode BytecodeArrayBuilder::BytecodeForLoadGlobal(LanguageMode language_mode,
-                                                     TypeofMode typeof_mode) {
-  switch (language_mode) {
-    case SLOPPY:
-      return typeof_mode == INSIDE_TYPEOF
-                 ? Bytecode::kLdaGlobalInsideTypeofSloppy
-                 : Bytecode::kLdaGlobalSloppy;
-    case STRICT:
-      return typeof_mode == INSIDE_TYPEOF
-                 ? Bytecode::kLdaGlobalInsideTypeofStrict
-                 : Bytecode::kLdaGlobalStrict;
-    case STRONG:
-      UNIMPLEMENTED();
-    default:
-      UNREACHABLE();
-  }
-  return static_cast<Bytecode>(-1);
+Bytecode BytecodeArrayBuilder::BytecodeForLoadGlobal(TypeofMode typeof_mode) {
+  return typeof_mode == INSIDE_TYPEOF ? Bytecode::kLdaGlobalInsideTypeof
+                                      : Bytecode::kLdaGlobal;
 }