[turbofan] Add support for tail-calling a runtime function with 6 arguments.

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 38 matching lines @@
   V(Int32LessThan)                               \
   V(Int32LessThanOrEqual)                        \
   V(IntPtrLessThan)                              \
   V(IntPtrLessThanOrEqual)                       \
   V(IntPtrGreaterThan)                           \
   V(IntPtrGreaterThanOrEqual)                    \
   V(IntPtrEqual)                                 \
   V(Uint32LessThan)                              \
   V(Uint32GreaterThanOrEqual)                    \
   V(UintPtrLessThan)                             \
+  V(UintPtrGreaterThan)                          \
   V(UintPtrGreaterThanOrEqual)                   \
   V(WordEqual)                                   \
   V(WordNotEqual)                                \
   V(Word32Equal)                                 \
   V(Word32NotEqual)                              \
   V(Word64Equal)                                 \
   V(Word64NotEqual)
 
 #define CODE_ASSEMBLER_BINARY_OP_LIST(V)   \
   CODE_ASSEMBLER_COMPARE_BINARY_OP_LIST(V) \
@@ skipping 243 matching lines @@
                         Node* arg1);
   Node* TailCallRuntime(Runtime::FunctionId function_id, Node* context,
                         Node* arg1, Node* arg2);
   Node* TailCallRuntime(Runtime::FunctionId function_id, Node* context,
                         Node* arg1, Node* arg2, Node* arg3);
   Node* TailCallRuntime(Runtime::FunctionId function_id, Node* context,
                         Node* arg1, Node* arg2, Node* arg3, Node* arg4);
   Node* TailCallRuntime(Runtime::FunctionId function_id, Node* context,
                         Node* arg1, Node* arg2, Node* arg3, Node* arg4,
                         Node* arg5);
+  Node* TailCallRuntime(Runtime::FunctionId function_id, Node* context,
+                        Node* arg1, Node* arg2, Node* arg3, Node* arg4,
+                        Node* arg5, Node* arg6);
 
   // A pair of a zero-based argument index and a value.
   // It helps writing arguments order independent code.
   struct Arg {
     Arg(int index, Node* value) : index(index), value(value) {}
 
     int const index;
     Node* const value;
   };
 
@@ skipping 150 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_