remove equality kind from compare nil ic

src/code-stubs.cc

 // Copyright 2012 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 414 matching lines @@
       break;
     case CompareIC::GENERIC:
       GenerateGeneric(masm);
       break;
   }
 }
 
 
 void CompareNilICStub::Record(Handle<Object> object) {
   ASSERT(types_ != Types::FullCompare());
-  if (equality_kind_ == kStrictEquality) {
-    // When testing for strict equality only one value will evaluate to true
-    types_.RemoveAll();
-    types_.Add((nil_value_ == kNullValue) ? NULL_TYPE:
-                                            UNDEFINED);
+  if (object->IsNull()) {
+    types_.Add(NULL_TYPE);
+  } else if (object->IsUndefined()) {
+    types_.Add(UNDEFINED);
+  } else if (object->IsUndetectableObject() ||
+             object->IsOddball() ||
+             !object->IsHeapObject()) {
+    types_ = Types::FullCompare();
+  } else if (IsMonomorphic()) {
+    types_ = Types::FullCompare();
   } else {
-    if (object->IsNull()) {
-      types_.Add(NULL_TYPE);
-    } else if (object->IsUndefined()) {
-      types_.Add(UNDEFINED);
-    } else if (object->IsUndetectableObject() ||
-               object->IsOddball() ||
-               !object->IsHeapObject()) {
-      types_ = Types::FullCompare();
-    } else if (IsMonomorphic()) {
-      types_ = Types::FullCompare();
-    } else {
-      types_.Add(MONOMORPHIC_MAP);
-    }
+    types_.Add(MONOMORPHIC_MAP);
   }
 }
 
 
 void CompareNilICStub::Types::TraceTransition(Types to) const {
   #ifdef DEBUG
   if (!FLAG_trace_ic) return;
   char buffer[100];
   NoAllocationStringAllocator allocator(buffer,
                                         static_cast<unsigned>(sizeof(buffer)));
   StringStream stream(&allocator);
   stream.Add("[CompareNilIC : ");
   Print(&stream);
   stream.Add("=>");
   to.Print(&stream);
   stream.Add("]\n");
   stream.OutputToStdOut();
   #endif
 }
 
 
 void CompareNilICStub::PrintName(StringStream* stream) {
   stream->Add("CompareNilICStub_");
   types_.Print(stream);
   stream->Add((nil_value_ == kNullValue) ? "(NullValue|":
                                            "(UndefinedValue|");
-  stream->Add((equality_kind_ == kStrictEquality) ? "StrictEquality)":
-                                                    "NonStrictEquality)");
 }
 
 
 void CompareNilICStub::Types::Print(StringStream* stream) const {
   stream->Add("(");
   SimpleListPrinter printer(stream);
   if (IsEmpty()) printer.Add("None");
   if (Contains(UNDEFINED)) printer.Add("Undefined");
   if (Contains(NULL_TYPE)) printer.Add("Null");
   if (Contains(MONOMORPHIC_MAP)) printer.Add("MonomorphicMap");
@@ skipping 315 matching lines @@
   InstallDescriptor(isolate, &stub3);
 }
 
 InternalArrayConstructorStub::InternalArrayConstructorStub(
     Isolate* isolate) {
   InternalArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate);
 }
 
 
 } }  // namespace v8::internal