Revert of Remove ExternalArray, derived types, and element kinds

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 5fe81d25538ee2ec13ceb15d6342cd3c4083943d..97881ba1a2d3c7dca6b9c4b15cc456dbecbf414a 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -3190,13 +3190,17 @@
       ? (element_size_shift - kSmiTagSize) : element_size_shift;
   int base_offset = instr->base_offset();
 
-  if (elements_kind == FLOAT32_ELEMENTS || elements_kind == FLOAT64_ELEMENTS) {
+  if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+      elements_kind == FLOAT32_ELEMENTS ||
+      elements_kind == EXTERNAL_FLOAT64_ELEMENTS ||
+      elements_kind == FLOAT64_ELEMENTS) {
     DwVfpRegister result = ToDoubleRegister(instr->result());
     Operand operand = key_is_constant
         ? Operand(constant_key << element_size_shift)
         : Operand(key, LSL, shift_size);
     __ add(scratch0(), external_pointer, operand);
-    if (elements_kind == FLOAT32_ELEMENTS) {
+    if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+        elements_kind == FLOAT32_ELEMENTS) {
       __ vldr(double_scratch0().low(), scratch0(), base_offset);
       __ vcvt_f64_f32(result, double_scratch0().low());
     } else  {  // i.e. elements_kind == EXTERNAL_DOUBLE_ELEMENTS
@@ -3208,22 +3212,29 @@
         key, external_pointer, key_is_constant, constant_key,
         element_size_shift, shift_size, base_offset);
     switch (elements_kind) {
+      case EXTERNAL_INT8_ELEMENTS:
       case INT8_ELEMENTS:
         __ ldrsb(result, mem_operand);
         break;
+      case EXTERNAL_UINT8_CLAMPED_ELEMENTS:
+      case EXTERNAL_UINT8_ELEMENTS:
       case UINT8_ELEMENTS:
       case UINT8_CLAMPED_ELEMENTS:
         __ ldrb(result, mem_operand);
         break;
+      case EXTERNAL_INT16_ELEMENTS:
       case INT16_ELEMENTS:
         __ ldrsh(result, mem_operand);
         break;
+      case EXTERNAL_UINT16_ELEMENTS:
       case UINT16_ELEMENTS:
         __ ldrh(result, mem_operand);
         break;
+      case EXTERNAL_INT32_ELEMENTS:
       case INT32_ELEMENTS:
         __ ldr(result, mem_operand);
         break;
+      case EXTERNAL_UINT32_ELEMENTS:
       case UINT32_ELEMENTS:
         __ ldr(result, mem_operand);
         if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) {
@@ -3233,6 +3244,8 @@
         break;
       case FLOAT32_ELEMENTS:
       case FLOAT64_ELEMENTS:
+      case EXTERNAL_FLOAT32_ELEMENTS:
+      case EXTERNAL_FLOAT64_ELEMENTS:
       case FAST_HOLEY_DOUBLE_ELEMENTS:
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
@@ -3342,7 +3355,7 @@
 
 
 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);
@@ -4304,7 +4317,10 @@
       ? (element_size_shift - kSmiTagSize) : element_size_shift;
   int base_offset = instr->base_offset();
 
-  if (elements_kind == FLOAT32_ELEMENTS || elements_kind == FLOAT64_ELEMENTS) {
+  if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+      elements_kind == FLOAT32_ELEMENTS ||
+      elements_kind == EXTERNAL_FLOAT64_ELEMENTS ||
+      elements_kind == FLOAT64_ELEMENTS) {
     Register address = scratch0();
     DwVfpRegister value(ToDoubleRegister(instr->value()));
     if (key_is_constant) {
@@ -4317,7 +4333,8 @@
     } else {
       __ add(address, external_pointer, Operand(key, LSL, shift_size));
     }
-    if (elements_kind == FLOAT32_ELEMENTS) {
+    if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+        elements_kind == FLOAT32_ELEMENTS) {
       __ vcvt_f32_f64(double_scratch0().low(), value);
       __ vstr(double_scratch0().low(), address, base_offset);
     } else {  // Storing doubles, not floats.
@@ -4330,21 +4347,30 @@
         element_size_shift, shift_size,
         base_offset);
     switch (elements_kind) {
+      case EXTERNAL_UINT8_CLAMPED_ELEMENTS:
+      case EXTERNAL_INT8_ELEMENTS:
+      case EXTERNAL_UINT8_ELEMENTS:
       case UINT8_ELEMENTS:
       case UINT8_CLAMPED_ELEMENTS:
       case INT8_ELEMENTS:
         __ strb(value, mem_operand);
         break;
+      case EXTERNAL_INT16_ELEMENTS:
+      case EXTERNAL_UINT16_ELEMENTS:
       case INT16_ELEMENTS:
       case UINT16_ELEMENTS:
         __ strh(value, mem_operand);
         break;
+      case EXTERNAL_INT32_ELEMENTS:
+      case EXTERNAL_UINT32_ELEMENTS:
       case INT32_ELEMENTS:
       case UINT32_ELEMENTS:
         __ str(value, mem_operand);
         break;
       case FLOAT32_ELEMENTS:
       case FLOAT64_ELEMENTS:
+      case EXTERNAL_FLOAT32_ELEMENTS:
+      case EXTERNAL_FLOAT64_ELEMENTS:
       case FAST_DOUBLE_ELEMENTS:
       case FAST_ELEMENTS:
       case FAST_SMI_ELEMENTS:
@@ -4450,7 +4476,7 @@
 
 void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) {
   // By cases: external, fast double
-  if (instr->is_fixed_typed_array()) {
+  if (instr->is_typed_elements()) {
     DoStoreKeyedExternalArray(instr);
   } else if (instr->hydrogen()->value()->representation().IsDouble()) {
     DoStoreKeyedFixedDoubleArray(instr);