Implement specialized IC code stubs for pixel array stores.

src/x64/stub-cache-x64.cc

 // Copyright 2010 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 2541 matching lines @@
   // 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* 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) {
   // ----------- S t a t e -------------
   //  -- rax    : receiver
   //  -- rcx    : name
   //  -- rsp[0] : return address
   // -----------------------------------
   Label miss;
 
@@ skipping 884 matching lines @@
   __ TailCallRuntime(Runtime::kSetProperty, 3, 1);
 
   return GetCode(flags);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64