Revert of Migrate FastCloneShallowObjectStub to TurboFan

src/compiler/code-stub-assembler.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/code-stub-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 505 matching lines @@
   Node* header_size = IntPtrConstant(additional_offset +
                                      FixedArray::kHeaderSize - kHeapObjectTag);
   if (raw_assembler_->machine()->Is64()) {
     index = ChangeInt32ToInt64(index);
   }
   Node* scaled_index = WordShl(index, IntPtrConstant(kPointerSizeLog2));
   Node* offset = IntPtrAdd(scaled_index, header_size);
   return Load(MachineType::AnyTagged(), object, offset);
 }
 
-Node* CodeStubAssembler::LoadMapInstanceSize(Node* map) {
-  return Load(MachineType::Uint8(), map,
-              IntPtrConstant(Map::kInstanceSizeOffset - kHeapObjectTag));
-}
-
 Node* CodeStubAssembler::LoadFixedArrayElementSmiIndex(Node* object,
                                                        Node* smi_index,
                                                        int additional_offset) {
   int const kSmiShiftBits = kSmiShiftSize + kSmiTagSize;
   Node* header_size = IntPtrConstant(additional_offset +
                                      FixedArray::kHeaderSize - kHeapObjectTag);
   Node* scaled_index =
       (kSmiShiftBits > kPointerSizeLog2)
           ? WordSar(smi_index, IntPtrConstant(kSmiShiftBits - kPointerSizeLog2))
           : WordShl(smi_index,
@@ skipping 161 matching lines @@
   if (flags & kDoubleAlignment) {
     return AllocateRawAligned(IntPtrConstant(size_in_bytes), flags, top_address,
                               limit_address);
   }
 #endif
 
   return AllocateRawUnaligned(IntPtrConstant(size_in_bytes), flags, top_address,
                               limit_address);
 }
 
-Node* CodeStubAssembler::InnerAllocate(Node* previous, int offset) {
-  return IntPtrAdd(previous, IntPtrConstant(offset));
-}
-
 Node* CodeStubAssembler::AllocateHeapNumber() {
   Node* result = Allocate(HeapNumber::kSize, kNone);
   StoreMapNoWriteBarrier(result, HeapNumberMapConstant());
   return result;
 }
 
 Node* CodeStubAssembler::AllocateHeapNumberWithValue(Node* value) {
   Node* result = AllocateHeapNumber();
   StoreHeapNumberValue(result, value);
   return result;
@@ skipping 1035 matching lines @@
       }
     }
   }
 
   bound_ = true;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8