Support external arrays in Crankshaft

src/arm/lithium-arm.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 1789 matching lines @@
     HLoadKeyedFastElement* instr) {
   ASSERT(instr->representation().IsTagged());
   ASSERT(instr->key()->representation().IsInteger32());
   LOperand* obj = UseRegisterAtStart(instr->object());
   LOperand* key = UseRegisterAtStart(instr->key());
   LLoadKeyedFastElement* result = new LLoadKeyedFastElement(obj, key);
   return AssignEnvironment(DefineSameAsFirst(result));
 }
 
 
-LInstruction* LChunkBuilder::DoLoadPixelArrayElement(
-    HLoadPixelArrayElement* instr) {
+LInstruction* LChunkBuilder::DoLoadKeyedSpecializedArrayElement(
+    HLoadKeyedSpecializedArrayElement* instr) {
+  // TODO(danno): Add support for other external array types.
+  if (instr->array_type() != kExternalPixelArray) {
+    Abort("unsupported load for external array type.");
+  }
+
   ASSERT(instr->representation().IsInteger32());
   ASSERT(instr->key()->representation().IsInteger32());
   LOperand* external_pointer =
       UseRegisterAtStart(instr->external_pointer());
   LOperand* key = UseRegisterAtStart(instr->key());
-  LLoadPixelArrayElement* result =
-      new LLoadPixelArrayElement(external_pointer, key);
+  LLoadKeyedSpecializedArrayElement* result =
+      new LLoadKeyedSpecializedArrayElement(external_pointer,
+                                            key,
+                                            instr->array_type());
   return DefineAsRegister(result);
 }
 
 
 LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
   LOperand* object = UseFixed(instr->object(), r1);
   LOperand* key = UseFixed(instr->key(), r0);
 
   LInstruction* result =
       DefineFixed(new LLoadKeyedGeneric(object, key), r0);
@@ skipping 13 matching lines @@
       ? UseTempRegister(instr->value())
       : UseRegisterAtStart(instr->value());
   LOperand* key = needs_write_barrier
       ? UseTempRegister(instr->key())
       : UseRegisterOrConstantAtStart(instr->key());
 
   return AssignEnvironment(new LStoreKeyedFastElement(obj, key, val));
 }
 
 
-LInstruction* LChunkBuilder::DoStorePixelArrayElement(
-    HStorePixelArrayElement* instr) {
+LInstruction* LChunkBuilder::DoStoreKeyedSpecializedArrayElement(
+    HStoreKeyedSpecializedArrayElement* instr) {
+  // TODO(danno): Add support for other external array types.
+  if (instr->array_type() != kExternalPixelArray) {
+    Abort("unsupported store for external array type.");
+  }
+
   ASSERT(instr->value()->representation().IsInteger32());
   ASSERT(instr->external_pointer()->representation().IsExternal());
   ASSERT(instr->key()->representation().IsInteger32());
 
   LOperand* external_pointer = UseRegister(instr->external_pointer());
   LOperand* value = UseTempRegister(instr->value());  // changed by clamp.
   LOperand* key = UseRegister(instr->key());
 
-  return new LStorePixelArrayElement(external_pointer, key, value);
+  return new LStoreKeyedSpecializedArrayElement(external_pointer,
+                                                key,
+                                                value,
+                                                instr->array_type());
 }
 
 
 LInstruction* LChunkBuilder::DoStoreKeyedGeneric(HStoreKeyedGeneric* instr) {
   LOperand* obj = UseFixed(instr->object(), r2);
   LOperand* key = UseFixed(instr->key(), r1);
   LOperand* val = UseFixed(instr->value(), r0);
 
   ASSERT(instr->object()->representation().IsTagged());
   ASSERT(instr->key()->representation().IsTagged());
@@ skipping 194 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
   HEnvironment* outer = current_block_->last_environment()->outer();
   current_block_->UpdateEnvironment(outer);
   return NULL;
 }
 
 
 } }  // namespace v8::internal