Combine typed and pixel arrays.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index ed963dc0f3f61230892a1cd9963d42a4a9e85e87..078561d2dfab43a94b403f654fcdca8bcbd0faf7 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -3282,11 +3282,13 @@ void HGraphBuilder::HandlePropertyAssignment(Assignment* expr) {
 
     if (expr->IsMonomorphic()) {
       Handle<Map> receiver_type(expr->GetMonomorphicReceiverType());
-      // An object has either fast elements or pixel array elements, but never
-      // both. Pixel array maps that are assigned to pixel array elements are
-      // always created with the fast elements flag cleared.
-      if (receiver_type->has_pixel_array_elements()) {
-        instr = BuildStoreKeyedPixelArrayElement(object, key, value, expr);
+      // An object has either fast elements or external array elements, but
+      // never both. Pixel array maps that are assigned to pixel array elements
+      // are always created with the fast elements flag cleared.
+      if (receiver_type->has_external_array_elements()) {
+        if (expr->GetExternalArrayType() == kExternalPixelArray) {
+          instr = BuildStoreKeyedPixelArrayElement(object, key, value, expr);
+        }
       } else if (receiver_type->has_fast_elements()) {
         instr = BuildStoreKeyedFastElement(object, key, value, expr);
       }
@@ -3669,15 +3671,15 @@ HInstruction* HGraphBuilder::BuildLoadKeyedPixelArrayElement(HValue* object,
   AddInstruction(new HCheckNonSmi(object));
   Handle<Map> map = expr->GetMonomorphicReceiverType();
   ASSERT(!map->has_fast_elements());
-  ASSERT(map->has_pixel_array_elements());
+  ASSERT(map->has_external_array_elements());
   AddInstruction(new HCheckMap(object, map));
   HLoadElements* elements = new HLoadElements(object);
   AddInstruction(elements);
-  HInstruction* length = new HPixelArrayLength(elements);
+  HInstruction* length = new HExternalArrayLength(elements);
   AddInstruction(length);
   AddInstruction(new HBoundsCheck(key, length));
-  HLoadPixelArrayExternalPointer* external_elements =
-      new HLoadPixelArrayExternalPointer(elements);
+  HLoadExternalArrayPointer* external_elements =
+      new HLoadExternalArrayPointer(elements);
   AddInstruction(external_elements);
   HLoadPixelArrayElement* pixel_array_value =
       new HLoadPixelArrayElement(external_elements, key);
@@ -3726,14 +3728,14 @@ HInstruction* HGraphBuilder::BuildStoreKeyedPixelArrayElement(
   AddInstruction(new HCheckNonSmi(object));
   Handle<Map> map = expr->GetMonomorphicReceiverType();
   ASSERT(!map->has_fast_elements());
-  ASSERT(map->has_pixel_array_elements());
+  ASSERT(map->has_external_array_elements());
   AddInstruction(new HCheckMap(object, map));
   HLoadElements* elements = new HLoadElements(object);
   AddInstruction(elements);
-  HInstruction* length = AddInstruction(new HPixelArrayLength(elements));
+  HInstruction* length = AddInstruction(new HExternalArrayLength(elements));
   AddInstruction(new HBoundsCheck(key, length));
-  HLoadPixelArrayExternalPointer* external_elements =
-      new HLoadPixelArrayExternalPointer(elements);
+  HLoadExternalArrayPointer* external_elements =
+      new HLoadExternalArrayPointer(elements);
   AddInstruction(external_elements);
   return new HStorePixelArrayElement(external_elements, key, val);
 }
@@ -3823,8 +3825,10 @@ void HGraphBuilder::VisitProperty(Property* expr) {
       // An object has either fast elements or pixel array elements, but never
       // both. Pixel array maps that are assigned to pixel array elements are
       // always created with the fast elements flag cleared.
-      if (receiver_type->has_pixel_array_elements()) {
-        instr = BuildLoadKeyedPixelArrayElement(obj, key, expr);
+      if (receiver_type->has_external_array_elements()) {
+        if (expr->GetExternalArrayType() == kExternalPixelArray) {
+          instr = BuildLoadKeyedPixelArrayElement(obj, key, expr);
+        }
       } else if (receiver_type->has_fast_elements()) {
         instr = BuildLoadKeyedFastElement(obj, key, expr);
       }