[builtins] Add support for JS builtins written in TurboFan.

src/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_H_
 #define V8_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/handles.h"
 
 namespace v8 {
 namespace internal {
 
+namespace compiler {
+
+// Forward declarations.
+class CodeStubAssembler;
+
+}  // namespace compiler
+
 // Specifies extra arguments required by a C++ builtin.
 enum class BuiltinExtraArguments : uint8_t {
   kNone = 0u,
   kTarget = 1u << 0,
   kNewTarget = 1u << 1,
   kTargetAndNewTarget = kTarget | kNewTarget
 };
 
 inline bool operator&(BuiltinExtraArguments lhs, BuiltinExtraArguments rhs) {
   return static_cast<uint8_t>(lhs) & static_cast<uint8_t>(rhs);
@@ skipping 268 matching lines @@
                                                                                \
   V(OnStackReplacement, BUILTIN, UNINITIALIZED, kNoExtraICState)               \
   V(InterruptCheck, BUILTIN, UNINITIALIZED, kNoExtraICState)                   \
   V(StackCheck, BUILTIN, UNINITIALIZED, kNoExtraICState)                       \
                                                                                \
   V(MarkCodeAsToBeExecutedOnce, BUILTIN, UNINITIALIZED, kNoExtraICState)       \
   V(MarkCodeAsExecutedOnce, BUILTIN, UNINITIALIZED, kNoExtraICState)           \
   V(MarkCodeAsExecutedTwice, BUILTIN, UNINITIALIZED, kNoExtraICState)          \
   CODE_AGE_LIST_WITH_ARG(DECLARE_CODE_AGE_BUILTIN, V)
 
+// Define list of builtins implemented in TurboFan (with JS linkage).
+#define BUILTIN_LIST_T(V) V(MathSqrt, 2)
+
 // Define list of builtin handlers implemented in assembly.
 #define BUILTIN_LIST_H(V)                    \
   V(LoadIC_Slow,             LOAD_IC)        \
   V(KeyedLoadIC_Slow,        KEYED_LOAD_IC)  \
   V(StoreIC_Slow,            STORE_IC)       \
   V(KeyedStoreIC_Slow,       KEYED_STORE_IC) \
   V(LoadIC_Normal,           LOAD_IC)        \
   V(StoreIC_Normal,          STORE_IC)
 
 // Define list of builtins used by the debugger implemented in assembly.
@@ skipping 18 matching lines @@
 
   // Garbage collection support.
   void IterateBuiltins(ObjectVisitor* v);
 
   // Disassembler support.
   const char* Lookup(byte* pc);
 
   enum Name {
 #define DEF_ENUM_C(name, ignore) k##name,
 #define DEF_ENUM_A(name, kind, state, extra) k##name,
+#define DEF_ENUM_T(name, argc) k##name,
 #define DEF_ENUM_H(name, kind) k##name,
-    BUILTIN_LIST_C(DEF_ENUM_C)
-    BUILTIN_LIST_A(DEF_ENUM_A)
-    BUILTIN_LIST_H(DEF_ENUM_H)
-    BUILTIN_LIST_DEBUG_A(DEF_ENUM_A)
+    BUILTIN_LIST_C(DEF_ENUM_C) BUILTIN_LIST_A(DEF_ENUM_A)
+        BUILTIN_LIST_T(DEF_ENUM_T) BUILTIN_LIST_H(DEF_ENUM_H)
+            BUILTIN_LIST_DEBUG_A(DEF_ENUM_A)
 #undef DEF_ENUM_C
 #undef DEF_ENUM_A
-    builtin_count
+#undef DEF_ENUM_T
+#undef DEF_ENUM_H
+                builtin_count
   };
 
   enum CFunctionId {
 #define DEF_ENUM_C(name, ignore) c_##name,
     BUILTIN_LIST_C(DEF_ENUM_C)
 #undef DEF_ENUM_C
     cfunction_count
   };
 
 #define DECLARE_BUILTIN_ACCESSOR_C(name, ignore) Handle<Code> name();
 #define DECLARE_BUILTIN_ACCESSOR_A(name, kind, state, extra) \
   Handle<Code> name();
+#define DECLARE_BUILTIN_ACCESSOR_T(name, argc) Handle<Code> name();
 #define DECLARE_BUILTIN_ACCESSOR_H(name, kind) Handle<Code> name();
   BUILTIN_LIST_C(DECLARE_BUILTIN_ACCESSOR_C)
   BUILTIN_LIST_A(DECLARE_BUILTIN_ACCESSOR_A)
+  BUILTIN_LIST_T(DECLARE_BUILTIN_ACCESSOR_T)
   BUILTIN_LIST_H(DECLARE_BUILTIN_ACCESSOR_H)
   BUILTIN_LIST_DEBUG_A(DECLARE_BUILTIN_ACCESSOR_A)
 #undef DECLARE_BUILTIN_ACCESSOR_C
 #undef DECLARE_BUILTIN_ACCESSOR_A
+#undef DECLARE_BUILTIN_ACCESSOR_T
+#undef DECLARE_BUILTIN_ACCESSOR_H
 
   // Convenience wrappers.
   Handle<Code> CallFunction(
       ConvertReceiverMode = ConvertReceiverMode::kAny,
       TailCallMode tail_call_mode = TailCallMode::kDisallow);
   Handle<Code> Call(ConvertReceiverMode = ConvertReceiverMode::kAny,
                     TailCallMode tail_call_mode = TailCallMode::kDisallow);
   Handle<Code> CallBoundFunction(TailCallMode tail_call_mode);
   Handle<Code> InterpreterPushArgsAndCall(TailCallMode tail_call_mode);
 
@@ skipping 190 matching lines @@
   enum class MathMaxMinKind { kMax, kMin };
   static void Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind);
   // ES6 section 20.2.2.24 Math.max ( value1, value2 , ...values )
   static void Generate_MathMax(MacroAssembler* masm) {
     Generate_MathMaxMin(masm, MathMaxMinKind::kMax);
   }
   // ES6 section 20.2.2.25 Math.min ( value1, value2 , ...values )
   static void Generate_MathMin(MacroAssembler* masm) {
     Generate_MathMaxMin(masm, MathMaxMinKind::kMin);
   }
+  // ES6 section 20.2.2.32 Math.sqrt ( x )
+  static void Generate_MathSqrt(compiler::CodeStubAssembler* assembler);
 
   // ES6 section 20.1.1.1 Number ( [ value ] ) for the [[Call]] case.
   static void Generate_NumberConstructor(MacroAssembler* masm);
   // ES6 section 20.1.1.1 Number ( [ value ] ) for the [[Construct]] case.
   static void Generate_NumberConstructor_ConstructStub(MacroAssembler* masm);
 
   static void Generate_StringConstructor(MacroAssembler* masm);
   static void Generate_StringConstructor_ConstructStub(MacroAssembler* masm);
   static void Generate_OnStackReplacement(MacroAssembler* masm);
   static void Generate_InterruptCheck(MacroAssembler* masm);
@@ skipping 35 matching lines @@
   friend class BuiltinFunctionTable;
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_H_