[csa] Make argc parameter to CodeStubArguments constructor use ParameterMode

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 1210 matching lines @@
 
   static const int kElementLoopUnrollThreshold = 8;
 };
 
 class CodeStubArguments {
  public:
   typedef compiler::Node Node;
 
   // |argc| is an uint32 value which specifies the number of arguments passed
   // to the builtin excluding the receiver.
-  CodeStubArguments(CodeStubAssembler* assembler, Node* argc);
+  CodeStubArguments(CodeStubAssembler* assembler, Node* argc)
+      : CodeStubArguments(assembler, argc, nullptr,
+                          CodeStubAssembler::INTPTR_PARAMETERS) {}
+  CodeStubArguments(CodeStubAssembler* assembler, Node* argc, Node* fp,
+                    CodeStubAssembler::ParameterMode param_mode);
 
   Node* GetReceiver() const;
 
+  Node* AtIndexPtr(Node* index, CodeStubAssembler::ParameterMode mode =
+                                    CodeStubAssembler::INTPTR_PARAMETERS) const;
+
   // |index| is zero-based and does not include the receiver
   Node* AtIndex(Node* index, CodeStubAssembler::ParameterMode mode =
                                  CodeStubAssembler::INTPTR_PARAMETERS) const;
 
   Node* AtIndex(int index) const;
 
   Node* GetLength() const { return argc_; }
 
   typedef std::function<void(Node* arg)> ForEachBodyFunction;
 
@@ skipping 10 matching lines @@
                const ForEachBodyFunction& body, Node* first = nullptr,
                Node* last = nullptr, CodeStubAssembler::ParameterMode mode =
                                          CodeStubAssembler::INTPTR_PARAMETERS);
 
   void PopAndReturn(Node* value);
 
  private:
   Node* GetArguments();
 
   CodeStubAssembler* assembler_;
+  CodeStubAssembler::ParameterMode argc_mode_;
   Node* argc_;
   Node* arguments_;
   Node* fp_;
 };
 
 #ifdef DEBUG
 #define CSA_ASSERT(csa, x) \
   (csa)->Assert([&] { return (x); }, #x, __FILE__, __LINE__)
 #define CSA_ASSERT_JS_ARGC_OP(csa, Op, op, expected)               \
   (csa)->Assert(                                                   \
@@ skipping 21 matching lines @@
   }
 #else
 #define CSA_SLOW_ASSERT(csa, x) ((void)0)
 #endif
 
 DEFINE_OPERATORS_FOR_FLAGS(CodeStubAssembler::AllocationFlags);
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_CODE_STUB_ASSEMBLER_H_