Create specialized code stubs for PixelArray loads.

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index 8888d70a6bf59eefffb8161ac420ecf54ec9f865..9cb88f36f60b2b5f1cc64e056288e62cb2448e37 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -2998,6 +2998,35 @@ MaybeObject* KeyedLoadStubCompiler::CompileLoadSpecialized(JSObject* receiver) {
 }
 
 
+MaybeObject* KeyedLoadStubCompiler::CompileLoadPixelArray(JSObject* receiver) {
+  // ----------- S t a t e -------------
+  //  -- rax    : key
+  //  -- rdx    : receiver
+  //  -- esp[0] : return address
+  // -----------------------------------
+  Label miss;
+
+  // Check that the map matches.
+  __ CheckMap(rdx, Handle<Map>(receiver->map()), &miss, false);
+
+  GenerateFastPixelArrayLoad(masm(),
+                             rdx,
+                             rax,
+                             rbx,
+                             rcx,
+                             rax,
+                             &miss,
+                             &miss,
+                             &miss);
+
+  __ bind(&miss);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(NORMAL, NULL);
+}
+
+
 // Specialized stub for constructing objects from functions which only have only
 // simple assignments of the form this.x = ...; in their body.
 MaybeObject* ConstructStubCompiler::CompileConstructStub(JSFunction* function) {