Prototype implementation of GET_OWN_PROPERTY intrinsic.

src/ia32/ic-ia32.cc

Index: src/ia32/ic-ia32.cc
diff --git a/src/ia32/ic-ia32.cc b/src/ia32/ic-ia32.cc
index 62e845eb27eee964527d7aac84985fa3c6f79e0a..2128605cb56cbf603527c0fba0ea09e808c3b459 100644
--- a/src/ia32/ic-ia32.cc
+++ b/src/ia32/ic-ia32.cc
@@ -343,11 +343,12 @@ static Operand GenerateUnmappedArgumentsLookup(MacroAssembler* masm,
 }
 
 
-void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
+void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm, ExtraICState extra_state) {
   // The return address is on the stack.
   Label slow, check_name, index_smi, index_name, property_array_property;
   Label probe_dictionary, check_number_dictionary;
 
+  PropertyLookupMode lookup_mode = GetPropertyLookupMode(extra_state);
   Register receiver = ReceiverRegister();
   Register key = NameRegister();
   DCHECK(receiver.is(edx));
@@ -399,7 +400,11 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
   __ bind(&slow);
   // Slow case: jump to runtime.
   __ IncrementCounter(counters->keyed_load_generic_slow(), 1);
-  GenerateRuntimeGetProperty(masm);
+  if (lookup_mode == OWN_PROPERTY_LOOKUP) {
+    GenerateRuntimeGetOwnProperty(masm);
+  } else {
+    GenerateRuntimeGetProperty(masm);
+  }
 
   __ bind(&check_name);
   GenerateKeyNameCheck(masm, key, eax, ebx, &index_name, &slow);
@@ -884,18 +889,20 @@ void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
 }
 
 
-void LoadIC::GenerateMegamorphic(MacroAssembler* masm) {
-  // The return address is on the stack.
-  Register receiver = ReceiverRegister();
-  Register name = NameRegister();
-  DCHECK(receiver.is(edx));
-  DCHECK(name.is(ecx));
+void LoadIC::GenerateMegamorphic(MacroAssembler* masm, ExtraICState extra_state) {
+  if (GetPropertyLookupMode(extra_state) == NORMAL_LOOKUP) {
+    // The return address is on the stack.
+    Register receiver = ReceiverRegister();
+    Register name = NameRegister();
+    DCHECK(receiver.is(edx));
+    DCHECK(name.is(ecx));
 
-  // Probe the stub cache.
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, flags, receiver, name, ebx, eax);
+    // Probe the stub cache.
+    Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
+        Code::ComputeHandlerFlags(Code::LOAD_IC));
+    masm->isolate()->stub_cache()->GenerateProbe(
+        masm, flags, receiver, name, ebx, eax);
+  }
 
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);
@@ -955,6 +962,15 @@ void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
 }
 
 
+void LoadIC::GenerateRuntimeGetOwnProperty(MacroAssembler* masm) {
+  // Return address is on the stack.
+  LoadIC_PushArgs(masm);
+
+  // Perform tail call to the entry.
+  __ TailCallRuntime(Runtime::kLoadOwnProperty, 2, 1);
+}
+
+
 void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
   // Return address is on the stack.
   __ IncrementCounter(masm->isolate()->counters()->keyed_load_miss(), 1);
@@ -1004,6 +1020,15 @@ void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
 }
 
 
+void KeyedLoadIC::GenerateRuntimeGetOwnProperty(MacroAssembler* masm) {
+  // Return address is on the stack.
+  LoadIC_PushArgs(masm);
+
+  // Perform tail call to the entry.
+  __ TailCallRuntime(Runtime::kKeyedGetOwnProperty, 2, 1);
+}
+
+
 void StoreIC::GenerateMegamorphic(MacroAssembler* masm) {
   // Return address is on the stack.
   Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(