Compile FastCloneShallowObjectStub using Crankshaft.

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index 23b8c66eeaabbfbe28c2a4fd40ce4ca44478e5f4..98dfa4ae95b822a1acbfe4fd5067f02d139ab896 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -1526,24 +1526,34 @@ void FullCodeGenerator::EmitAccessor(Expression* expression) {
 void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
   Comment cmnt(masm_, "[ ObjectLiteral");
   Handle<FixedArray> constant_properties = expr->constant_properties();
-  __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
-  __ push(FieldOperand(edi, JSFunction::kLiteralsOffset));
-  __ push(Immediate(Smi::FromInt(expr->literal_index())));
-  __ push(Immediate(constant_properties));
   int flags = expr->fast_elements()
       ? ObjectLiteral::kFastElements
       : ObjectLiteral::kNoFlags;
   flags |= expr->has_function()
       ? ObjectLiteral::kHasFunction
       : ObjectLiteral::kNoFlags;
-  __ push(Immediate(Smi::FromInt(flags)));
   int properties_count = constant_properties->length() / 2;
   if (expr->depth() > 1) {
+    __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
+    __ push(FieldOperand(edi, JSFunction::kLiteralsOffset));
+    __ push(Immediate(Smi::FromInt(expr->literal_index())));
+    __ push(Immediate(constant_properties));
+    __ push(Immediate(Smi::FromInt(flags)));
     __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
-  } else if (flags != ObjectLiteral::kFastElements ||
+  } else if (Serializer::enabled() || flags != ObjectLiteral::kFastElements ||
       properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) {
+    __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
+    __ push(FieldOperand(edi, JSFunction::kLiteralsOffset));
+    __ push(Immediate(Smi::FromInt(expr->literal_index())));
+    __ push(Immediate(constant_properties));
+    __ push(Immediate(Smi::FromInt(flags)));
     __ CallRuntime(Runtime::kCreateObjectLiteralShallow, 4);
   } else {
+    __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
+    __ mov(eax, FieldOperand(edi, JSFunction::kLiteralsOffset));
+    __ mov(ebx, Immediate(Smi::FromInt(expr->literal_index())));
+    __ mov(ecx, Immediate(constant_properties));
+    __ mov(edx, Immediate(Smi::FromInt(flags)));
     FastCloneShallowObjectStub stub(properties_count);
     __ CallStub(&stub);
   }