Revert of Remove ExternalArray, derived types, and element kinds

src/mips64/lithium-codegen-mips64.cc

Index: src/mips64/lithium-codegen-mips64.cc
diff --git a/src/mips64/lithium-codegen-mips64.cc b/src/mips64/lithium-codegen-mips64.cc
index a13937c2f728e44039a7140485fc37fc96d07cde..0313878b2e573e693dc62256c70cfc1b187758d6 100644
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -3234,7 +3234,10 @@
       : 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) {
     FPURegister result = ToDoubleRegister(instr->result());
     if (key_is_constant) {
       __ Daddu(scratch0(), external_pointer,
@@ -3251,7 +3254,8 @@
       }
       __ Daddu(scratch0(), scratch0(), external_pointer);
     }
-    if (elements_kind == FLOAT32_ELEMENTS) {
+    if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+        elements_kind == FLOAT32_ELEMENTS) {
       __ lwc1(result, MemOperand(scratch0(), base_offset));
       __ cvt_d_s(result, result);
     } else  {  // i.e. elements_kind == EXTERNAL_DOUBLE_ELEMENTS
@@ -3263,22 +3267,29 @@
         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:
         __ lb(result, mem_operand);
         break;
+      case EXTERNAL_UINT8_CLAMPED_ELEMENTS:
+      case EXTERNAL_UINT8_ELEMENTS:
       case UINT8_ELEMENTS:
       case UINT8_CLAMPED_ELEMENTS:
         __ lbu(result, mem_operand);
         break;
+      case EXTERNAL_INT16_ELEMENTS:
       case INT16_ELEMENTS:
         __ lh(result, mem_operand);
         break;
+      case EXTERNAL_UINT16_ELEMENTS:
       case UINT16_ELEMENTS:
         __ lhu(result, mem_operand);
         break;
+      case EXTERNAL_INT32_ELEMENTS:
       case INT32_ELEMENTS:
         __ lw(result, mem_operand);
         break;
+      case EXTERNAL_UINT32_ELEMENTS:
       case UINT32_ELEMENTS:
         __ lw(result, mem_operand);
         if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) {
@@ -3288,6 +3299,8 @@
         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:
@@ -3425,7 +3438,7 @@
 
 
 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);
@@ -4459,7 +4472,10 @@
       : 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();
     FPURegister value(ToDoubleRegister(instr->value()));
     if (key_is_constant) {
@@ -4482,7 +4498,8 @@
       __ Daddu(address, external_pointer, address);
     }
 
-    if (elements_kind == FLOAT32_ELEMENTS) {
+    if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS ||
+        elements_kind == FLOAT32_ELEMENTS) {
       __ cvt_s_d(double_scratch0(), value);
       __ swc1(double_scratch0(), MemOperand(address, base_offset));
     } else {  // Storing doubles, not floats.
@@ -4495,21 +4512,30 @@
         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:
         __ sb(value, mem_operand);
         break;
+      case EXTERNAL_INT16_ELEMENTS:
+      case EXTERNAL_UINT16_ELEMENTS:
       case INT16_ELEMENTS:
       case UINT16_ELEMENTS:
         __ sh(value, mem_operand);
         break;
+      case EXTERNAL_INT32_ELEMENTS:
+      case EXTERNAL_UINT32_ELEMENTS:
       case INT32_ELEMENTS:
       case UINT32_ELEMENTS:
         __ sw(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:
@@ -4636,7 +4662,7 @@
 
 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);