Revert of Remove ExternalArray, derived types, and element kinds

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 387949b2dfec1a58c7600a15a56499ee5dd5c9f5..a4c36b893fc906a10ee698ba17d0a82873dd6d27 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -3116,31 +3116,40 @@
       elements_kind,
       instr->base_offset()));
 
-  if (elements_kind == FLOAT32_ELEMENTS) {
+  if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+      elements_kind == FLOAT32_ELEMENTS) {
     XMMRegister result(ToDoubleRegister(instr->result()));
     __ movss(result, operand);
     __ cvtss2sd(result, result);
-  } else if (elements_kind == FLOAT64_ELEMENTS) {
+  } else if (elements_kind == EXTERNAL_FLOAT64_ELEMENTS ||
+             elements_kind == FLOAT64_ELEMENTS) {
     __ movsd(ToDoubleRegister(instr->result()), operand);
   } else {
     Register result(ToRegister(instr->result()));
     switch (elements_kind) {
+      case EXTERNAL_INT8_ELEMENTS:
       case INT8_ELEMENTS:
         __ movsxbl(result, operand);
         break;
+      case EXTERNAL_UINT8_ELEMENTS:
+      case EXTERNAL_UINT8_CLAMPED_ELEMENTS:
       case UINT8_ELEMENTS:
       case UINT8_CLAMPED_ELEMENTS:
         __ movzxbl(result, operand);
         break;
+      case EXTERNAL_INT16_ELEMENTS:
       case INT16_ELEMENTS:
         __ movsxwl(result, operand);
         break;
+      case EXTERNAL_UINT16_ELEMENTS:
       case UINT16_ELEMENTS:
         __ movzxwl(result, operand);
         break;
+      case EXTERNAL_INT32_ELEMENTS:
       case INT32_ELEMENTS:
         __ movl(result, operand);
         break;
+      case EXTERNAL_UINT32_ELEMENTS:
       case UINT32_ELEMENTS:
         __ movl(result, operand);
         if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) {
@@ -3148,6 +3157,8 @@
           DeoptimizeIf(negative, instr, Deoptimizer::kNegativeValue);
         }
         break;
+      case EXTERNAL_FLOAT32_ELEMENTS:
+      case EXTERNAL_FLOAT64_ELEMENTS:
       case FLOAT32_ELEMENTS:
       case FLOAT64_ELEMENTS:
       case FAST_ELEMENTS:
@@ -3266,7 +3277,7 @@
 
 
 void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) {
-  if (instr->is_fixed_typed_array()) {
+  if (instr->is_typed_elements()) {
     DoLoadKeyedExternalArray(instr);
   } else if (instr->hydrogen()->representation().IsDouble()) {
     DoLoadKeyedFixedDoubleArray(instr);
@@ -4368,28 +4379,39 @@
       elements_kind,
       instr->base_offset()));
 
-  if (elements_kind == FLOAT32_ELEMENTS) {
+  if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+      elements_kind == FLOAT32_ELEMENTS) {
     XMMRegister value(ToDoubleRegister(instr->value()));
     __ cvtsd2ss(value, value);
     __ movss(operand, value);
-  } else if (elements_kind == FLOAT64_ELEMENTS) {
+  } else if (elements_kind == EXTERNAL_FLOAT64_ELEMENTS ||
+             elements_kind == FLOAT64_ELEMENTS) {
     __ movsd(operand, ToDoubleRegister(instr->value()));
   } else {
     Register value(ToRegister(instr->value()));
     switch (elements_kind) {
+      case EXTERNAL_UINT8_CLAMPED_ELEMENTS:
+      case EXTERNAL_INT8_ELEMENTS:
+      case EXTERNAL_UINT8_ELEMENTS:
       case INT8_ELEMENTS:
       case UINT8_ELEMENTS:
       case UINT8_CLAMPED_ELEMENTS:
         __ movb(operand, value);
         break;
+      case EXTERNAL_INT16_ELEMENTS:
+      case EXTERNAL_UINT16_ELEMENTS:
       case INT16_ELEMENTS:
       case UINT16_ELEMENTS:
         __ movw(operand, value);
         break;
+      case EXTERNAL_INT32_ELEMENTS:
+      case EXTERNAL_UINT32_ELEMENTS:
       case INT32_ELEMENTS:
       case UINT32_ELEMENTS:
         __ movl(operand, value);
         break;
+      case EXTERNAL_FLOAT32_ELEMENTS:
+      case EXTERNAL_FLOAT64_ELEMENTS:
       case FLOAT32_ELEMENTS:
       case FLOAT64_ELEMENTS:
       case FAST_ELEMENTS:
@@ -4513,7 +4535,7 @@
 
 
 void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) {
-  if (instr->is_fixed_typed_array()) {
+  if (instr->is_typed_elements()) {
     DoStoreKeyedExternalArray(instr);
   } else if (instr->hydrogen()->value()->representation().IsDouble()) {
     DoStoreKeyedFixedDoubleArray(instr);