[regexp] Port RegExpConstructResultStub to TurboFan

src/code-stub-assembler.h

 // Copyright 2016 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_CODE_STUB_ASSEMBLER_H_
 #define V8_CODE_STUB_ASSEMBLER_H_
 
 #include <functional>
 
 #include "src/compiler/code-assembler.h"
@@ skipping 10 matching lines @@
 
 enum class UnicodeEncoding {
   // Different unicode encodings in a |word32|:
   UTF16,  // hi 16bits -> trailing surrogate or 0, low 16bits -> lead surrogate
   UTF32,  // full UTF32 code unit / Unicode codepoint
 };
 
 #define HEAP_CONSTANT_LIST(V)                 \
   V(BooleanMap, BooleanMap)                   \
   V(empty_string, EmptyString)                \
+  V(EmptyFixedArray, EmptyFixedArray)         \
   V(FixedArrayMap, FixedArrayMap)             \
   V(FixedCOWArrayMap, FixedCOWArrayMap)       \
   V(FixedDoubleArrayMap, FixedDoubleArrayMap) \
   V(HeapNumberMap, HeapNumberMap)             \
   V(MinusZeroValue, MinusZero)                \
   V(NanValue, Nan)                            \
   V(NullValue, Null)                          \
   V(TheHoleValue, TheHole)                    \
   V(UndefinedValue, Undefined)
 
@@ skipping 307 matching lines @@
   // |length| and |offset| are expected to be tagged.
   compiler::Node* AllocateSlicedOneByteString(compiler::Node* length,
                                               compiler::Node* parent,
                                               compiler::Node* offset);
   // Allocate a SlicedTwoByteString with the given length, parent and offset.
   // |length| and |offset| are expected to be tagged.
   compiler::Node* AllocateSlicedTwoByteString(compiler::Node* length,
                                               compiler::Node* parent,
                                               compiler::Node* offset);
 
+  // Allocate a RegExpResult with the given length (the number of captures,
+  // including the match itself), index (the index where the match starts),
+  // and input string. |length| and |index| are expected to be tagged, and
+  // |input| must be a string.
+  compiler::Node* AllocateRegExpResult(compiler::Node* context,
+                                       compiler::Node* length,
+                                       compiler::Node* index,
+                                       compiler::Node* input);
+
   // Allocate a JSArray without elements and initialize the header fields.
   compiler::Node* AllocateUninitializedJSArrayWithoutElements(
       ElementsKind kind, compiler::Node* array_map, compiler::Node* length,
       compiler::Node* allocation_site);
   // Allocate and return a JSArray with initialized header fields and its
   // uninitialized elements.
   // The ParameterMode argument is only used for the capacity parameter.
   std::pair<compiler::Node*, compiler::Node*>
   AllocateUninitializedJSArrayWithElements(
       ElementsKind kind, compiler::Node* array_map, compiler::Node* length,
@@ skipping 439 matching lines @@
   // Create a new weak cell with a specified value and install it into a
   // feedback vector.
   compiler::Node* CreateWeakCellInFeedbackVector(
       compiler::Node* feedback_vector, compiler::Node* slot,
       compiler::Node* value);
 
   // Create a new AllocationSite and install it into a feedback vector.
   compiler::Node* CreateAllocationSiteInFeedbackVector(
       compiler::Node* feedback_vector, compiler::Node* slot);
 
-  compiler::Node* GetFixedAarrayAllocationSize(compiler::Node* element_count,
-                                               ElementsKind kind,
-                                               ParameterMode mode) {
+  compiler::Node* GetFixedArrayAllocationSize(compiler::Node* element_count,
+                                              ElementsKind kind,
+                                              ParameterMode mode) {
     return ElementOffsetFromIndex(element_count, kind, mode,
                                   FixedArray::kHeaderSize);
   }
 
  private:
   enum ElementSupport { kOnlyProperties, kSupportElements };
 
   void DescriptorLookupLinear(compiler::Node* unique_name,
                               compiler::Node* descriptors, compiler::Node* nof,
                               Label* if_found, Variable* var_name_index,
@@ skipping 53 matching lines @@
                                            Label* bailout);
 
   static const int kElementLoopUnrollThreshold = 8;
 };
 
 DEFINE_OPERATORS_FOR_FLAGS(CodeStubAssembler::AllocationFlags);
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_CODE_STUB_ASSEMBLER_H_