Compile FastCloneShallowArrayStub using Crankshaft.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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 5149 matching lines @@
     __ movq(rbx, FieldOperand(rax, HeapObject::kMapOffset));
     // Load the map's "bit field 2".
     __ movb(rbx, FieldOperand(rbx, Map::kBitField2Offset));
     // Retrieve elements_kind from bit field 2.
     __ and_(rbx, Immediate(Map::kElementsKindMask));
     __ cmpb(rbx, Immediate(boilerplate_elements_kind <<
                            Map::kElementsKindShift));
     DeoptimizeIf(not_equal, instr->environment());
   }
 
-  // Set up the parameters to the stub/runtime call.
-  __ PushHeapObject(literals);
-  __ Push(Smi::FromInt(instr->hydrogen()->literal_index()));
-  // Boilerplate already exists, constant elements are never accessed.
-  // Pass an empty fixed array.
-  __ Push(isolate()->factory()->empty_fixed_array());
-
-  // Pick the right runtime function or stub to call.
+  // Set up the parameters to the stub/runtime call and pick the right
+  // runtime function or stub to call. Boilerplate already exists,
+  // constant elements are never accessed, pass an empty fixed array.
   int length = instr->hydrogen()->length();
   if (instr->hydrogen()->IsCopyOnWrite()) {
     ASSERT(instr->hydrogen()->depth() == 1);
+    __ LoadHeapObject(rax, literals);
+    __ Move(rbx, Smi::FromInt(instr->hydrogen()->literal_index()));
+    __ Move(rcx, isolate()->factory()->empty_fixed_array());
     FastCloneShallowArrayStub::Mode mode =
         FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS;
     FastCloneShallowArrayStub stub(mode, DONT_TRACK_ALLOCATION_SITE, length);
     CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
   } else if (instr->hydrogen()->depth() > 1) {
+    __ PushHeapObject(literals);
+    __ Push(Smi::FromInt(instr->hydrogen()->literal_index()));
+    __ Push(isolate()->factory()->empty_fixed_array());
     CallRuntime(Runtime::kCreateArrayLiteral, 3, instr);
   } else if (length > FastCloneShallowArrayStub::kMaximumClonedLength) {
+    __ PushHeapObject(literals);
+    __ Push(Smi::FromInt(instr->hydrogen()->literal_index()));
+    __ Push(isolate()->factory()->empty_fixed_array());
     CallRuntime(Runtime::kCreateArrayLiteralShallow, 3, instr);
   } else {
+    __ LoadHeapObject(rax, literals);
+    __ Move(rbx, Smi::FromInt(instr->hydrogen()->literal_index()));
+    __ Move(rcx, isolate()->factory()->empty_fixed_array());
     FastCloneShallowArrayStub::Mode mode =
         boilerplate_elements_kind == FAST_DOUBLE_ELEMENTS
         ? FastCloneShallowArrayStub::CLONE_DOUBLE_ELEMENTS
         : FastCloneShallowArrayStub::CLONE_ELEMENTS;
     FastCloneShallowArrayStub stub(mode, allocation_site_mode, length);
     CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
   }
 }
 
 
@@ skipping 638 matching lines @@
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64