[Atomics] Make Atomics.exchange a builtin using TF

src/builtins/builtins.h

 // Copyright 2011 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_BUILTINS_BUILTINS_H_
 #define V8_BUILTINS_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/globals.h"
 
@@ skipping 31 matching lines @@
 // TFJ: Builtin in Turbofan, with JS linkage (callable as Javascript function).
 //      Args: name, arguments count
 // TFS: Builtin in Turbofan, with CodeStub linkage.
 //      Args: name, code kind, extra IC state, interface descriptor, return_size
 // ASM: Builtin in platform-dependent assembly.
 //      Args: name
 // ASH: Handlers implemented in platform-dependent assembly.
 //      Args: name, code kind, extra IC state
 // DBG: Builtin in platform-dependent assembly, used by the debugger.
 //      Args: name
+
 #define BUILTIN_LIST(CPP, API, TFJ, TFS, ASM, ASH, DBG)                        \
   ASM(Abort)                                                                   \
   /* Code aging */                                                             \
   CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, ASM)                        \
                                                                                \
   /* Declared first for dependency reasons */                                  \
   ASM(CompileLazy)                                                             \
   TFS(ToObject, BUILTIN, kNoExtraICState, TypeConversion, 1)                   \
   TFS(FastNewObject, BUILTIN, kNoExtraICState, FastNewObject, 1)               \
   TFS(HasProperty, BUILTIN, kNoExtraICState, HasProperty, 1)                   \
@@ skipping 662 matching lines @@
   TFS(RegExpReplace, BUILTIN, kNoExtraICState, RegExpReplace, 1)               \
   TFJ(RegExpPrototypeReplace, 2)                                               \
                                                                                \
   TFS(RegExpSplit, BUILTIN, kNoExtraICState, RegExpSplit, 1)                   \
   TFJ(RegExpPrototypeSplit, 2)                                                 \
                                                                                \
   /* SharedArrayBuffer */                                                      \
   CPP(SharedArrayBufferPrototypeGetByteLength)                                 \
   TFJ(AtomicsLoad, 2)                                                          \
   TFJ(AtomicsStore, 3)                                                         \
+  TFJ(AtomicsExchange, 3)                                                      \
                                                                                \
   /* String */                                                                 \
   ASM(StringConstructor)                                                       \
   ASM(StringConstructor_ConstructStub)                                         \
   CPP(StringFromCodePoint)                                                     \
   /* ES6 section 21.1.2.1 String.fromCharCode ( ...codeUnits ) */              \
   TFJ(StringFromCharCode, SharedFunctionInfo::kDontAdaptArgumentsSentinel)     \
   /* ES6 section 21.1.3.1 String.prototype.charAt ( pos ) */                   \
   TFJ(StringPrototypeCharAt, 1)                                                \
   /* ES6 section 21.1.3.2 String.prototype.charCodeAt ( pos ) */               \
@@ skipping 250 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_