Add inline caching for keyed loads and stores. Remove extra parentheses from...

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
===================================================================
--- src/x64/stub-cache-x64.cc	(revision 2533)
+++ src/x64/stub-cache-x64.cc	(working copy)
@@ -327,7 +327,7 @@
   // -----------------------------------
   Label miss;
 
-  __ movq(rax, (Operand(rsp, kPointerSize)));
+  __ movq(rax, Operand(rsp, kPointerSize));
   GenerateLoadConstant(object, holder, rax, rbx, rdx, value, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
@@ -348,7 +348,7 @@
   // -----------------------------------
   Label miss;
 
-  __ movq(rax, (Operand(rsp, kPointerSize)));
+  __ movq(rax, Operand(rsp, kPointerSize));
   GenerateLoadField(object, holder, rax, rbx, rdx, index, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
@@ -381,7 +381,7 @@
   __ IncrementCounter(&Counters::named_load_global_inline, 1);
 
   // Get the receiver from the stack.
-  __ movq(rax, (Operand(rsp, kPointerSize)));
+  __ movq(rax, Operand(rsp, kPointerSize));
 
   // If the object is the holder then we know that it's a global
   // object which can only happen for contextual loads. In this case,
@@ -476,6 +476,36 @@
 }
 
 
+Object* KeyedLoadStubCompiler::CompileLoadField(String* name,
+                                                JSObject* receiver,
+                                                JSObject* holder,
+                                                int index) {
+  // ----------- S t a t e -------------
+  //  -- rsp[0] : return address
+  //  -- rsp[8] : name
+  //  -- rsp[16] : receiver
+  // -----------------------------------
+  Label miss;
+
+  __ movq(rax, Operand(rsp, kPointerSize));
+  __ movq(rcx, Operand(rsp, 2 * kPointerSize));
+  __ IncrementCounter(&Counters::keyed_load_field, 1);
+
+  // Check that the name has not changed.
+  __ Cmp(rax, Handle<String>(name));
+  __ j(not_equal, &miss);
+
+  GenerateLoadField(receiver, holder, rcx, rbx, rdx, index, name, &miss);
+
+  __ bind(&miss);
+  __ DecrementCounter(&Counters::keyed_load_field, 1);
+  GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
+
+  // Return the generated code.
+  return GetCode(FIELD, name);
+}
+
+
 // TODO(1241006): Avoid having lazy compile stubs specialized by the
 // number of arguments. It is not needed anymore.
 Object* StubCompiler::CompileLazyCompile(Code::Flags flags) {