Implement crankshaft support for pixel array stores.

src/hydrogen-instructions.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 39 matching lines @@
 HYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE)
 #undef DEFINE_COMPILE
 
 
 const char* Representation::Mnemonic() const {
   switch (kind_) {
     case kNone: return "v";
     case kTagged: return "t";
     case kDouble: return "d";
     case kInteger32: return "i";
-    default:
+    case kExternal: return "x";
+    case kNumRepresentations:
       UNREACHABLE();
       return NULL;
   }
+  UNREACHABLE();
+  return NULL;
 }
 
 
 static int32_t ConvertAndSetOverflow(int64_t result, bool* overflow) {
   if (result > kMaxInt) {
     *overflow = true;
     return kMaxInt;
   }
   if (result < kMinInt) {
     *overflow = true;
@@ skipping 1121 matching lines @@
 
 void HStoreKeyed::PrintDataTo(StringStream* stream) const {
   object()->PrintNameTo(stream);
   stream->Add("[");
   key()->PrintNameTo(stream);
   stream->Add("] = ");
   value()->PrintNameTo(stream);
 }
 
 
+void HStorePixelArrayElement::PrintDataTo(StringStream* stream) const {
+  external_pointer()->PrintNameTo(stream);
+  stream->Add("[");
+  key()->PrintNameTo(stream);
+  stream->Add("] = ");
+  value()->PrintNameTo(stream);
+}
+
+
 void HLoadGlobal::PrintDataTo(StringStream* stream) const {
   stream->Add("[%p]", *cell());
   if (check_hole_value()) stream->Add(" (deleteable/read-only)");
 }
 
 
 void HStoreGlobal::PrintDataTo(StringStream* stream) const {
   stream->Add("[%p] = ", *cell());
   value()->PrintNameTo(stream);
 }
@@ skipping 264 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal