Implement specialized IC code stubs for pixel array stores.

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 9cb88f36f60b2b5f1cc64e056288e62cb2448e37..973fece32ad01f8b809d627df9dad0e9144ab929 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -2559,6 +2559,43 @@ MaybeObject* KeyedStoreStubCompiler::CompileStoreSpecialized(
 }
 
 
+MaybeObject* KeyedStoreStubCompiler::CompileStorePixelArray(
+    JSObject* receiver) {
+  // ----------- S t a t e -------------
+  //  -- rax    : value
+  //  -- rcx    : key
+  //  -- rdx    : receiver
+  //  -- rsp[0] : return address
+  // -----------------------------------
+  Label miss;
+
+  // Check that the map matches.
+  __ CheckMap(rdx, Handle<Map>(receiver->map()), &miss, false);
+
+  // Do the load.
+  GenerateFastPixelArrayStore(masm(),
+                              rdx,
+                              rcx,
+                              rax,
+                              rdi,
+                              rbx,
+                              true,
+                              false,
+                              &miss,
+                              &miss,
+                              NULL,
+                              &miss);
+
+  // Handle store cache miss.
+  __ bind(&miss);
+  Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss));
+  __ jmp(ic, RelocInfo::CODE_TARGET);
+
+  // Return the generated code.
+  return GetCode(NORMAL, NULL);
+}
+
+
 MaybeObject* LoadStubCompiler::CompileLoadNonexistent(String* name,
                                                       JSObject* object,
                                                       JSObject* last) {