[stubs] Implement fast TF Builtin for Object.create

src/compiler/code-assembler.h

 // 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.
 
 #ifndef V8_COMPILER_CODE_ASSEMBLER_H_
 #define V8_COMPILER_CODE_ASSEMBLER_H_
 
 #include <map>
 #include <memory>
 
@@ skipping 40 matching lines @@
   V(Int32LessThanOrEqual)                        \
   V(IntPtrLessThan)                              \
   V(IntPtrLessThanOrEqual)                       \
   V(IntPtrGreaterThan)                           \
   V(IntPtrGreaterThanOrEqual)                    \
   V(IntPtrEqual)                                 \
   V(Uint32LessThan)                              \
   V(Uint32LessThanOrEqual)                       \
   V(Uint32GreaterThanOrEqual)                    \
   V(UintPtrLessThan)                             \
+  V(UintPtrLessThanOrEqual)                      \
   V(UintPtrGreaterThan)                          \
   V(UintPtrGreaterThanOrEqual)                   \
   V(WordEqual)                                   \
   V(WordNotEqual)                                \
   V(Word32Equal)                                 \
   V(Word32NotEqual)                              \
   V(Word64Equal)                                 \
   V(Word64NotEqual)
 
 #define CODE_ASSEMBLER_BINARY_OP_LIST(V)   \
@@ skipping 208 matching lines @@
 
 // Basic arithmetic operations.
 #define DECLARE_CODE_ASSEMBLER_BINARY_OP(name) Node* name(Node* a, Node* b);
   CODE_ASSEMBLER_BINARY_OP_LIST(DECLARE_CODE_ASSEMBLER_BINARY_OP)
 #undef DECLARE_CODE_ASSEMBLER_BINARY_OP
 
   Node* WordShl(Node* value, int shift);
   Node* WordShr(Node* value, int shift);
   Node* Word32Shr(Node* value, int shift);
 
+  Node* IsWordAligned(Node* value);

[Jarin, 2016/10/19 07:24:16]

I think this should not be here, code-assembler is meant to be a lean assembler
without macro-operations.

Can't you move it to code-stub-assembler?

+
 // Unary
 #define DECLARE_CODE_ASSEMBLER_UNARY_OP(name) Node* name(Node* a);
   CODE_ASSEMBLER_UNARY_OP_LIST(DECLARE_CODE_ASSEMBLER_UNARY_OP)
 #undef DECLARE_CODE_ASSEMBLER_UNARY_OP
 
   // Changes an intptr_t to a double, e.g. for storing an element index
   // outside Smi range in a HeapNumber. Lossless on 32-bit,
   // rounds on 64-bit (which doesn't affect valid element indices).
   Node* RoundIntPtrToFloat64(Node* value);
   // No-op on 32-bit, otherwise zero extend.
@@ skipping 203 matching lines @@
   // Map of variables to the list of value nodes that have been added from each
   // merge path in their order of merging.
   std::map<Variable::Impl*, std::vector<Node*>> variable_merges_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CODE_ASSEMBLER_H_