[cleanup] Refactor builtins-number.cc

src/builtins/builtins-number.cc

 // 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.
 
 #include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/code-factory.h"
+#include "src/code-stub-assembler.h"
 
 namespace v8 {
 namespace internal {
 
+class NumberBuiltinsAssembler : public CodeStubAssembler {
+ public:
+  explicit NumberBuiltinsAssembler(compiler::CodeAssemblerState* state)
+      : CodeStubAssembler(state) {}
+
+ protected:
+  template <Signedness signed_result = kSigned>
+  void BitwiseOp(std::function<Node*(Node* lhs, Node* rhs)> body) {
+    Node* left = Parameter(0);
+    Node* right = Parameter(1);
+    Node* context = Parameter(2);
+
+    Node* lhs_value = TruncateTaggedToWord32(context, left);
+    Node* rhs_value = TruncateTaggedToWord32(context, right);
+    Node* value = body(lhs_value, rhs_value);
+    Node* result = signed_result == kSigned ? ChangeInt32ToTagged(value)
+                                            : ChangeUint32ToTagged(value);
+    Return(result);
+  }
+
+  template <Signedness signed_result = kSigned>
+  void BitwiseShiftOp(std::function<Node*(Node* lhs, Node* shift_count)> body) {
+    BitwiseOp<signed_result>([this, body](Node* lhs, Node* rhs) {
+      Node* shift_count = Word32And(rhs, Int32Constant(0x1f));
+      return body(lhs, shift_count);
+    });
+  }
+
+  void RelationalComparisonBuiltin(RelationalComparisonMode mode) {
+    Node* lhs = Parameter(0);
+    Node* rhs = Parameter(1);
+    Node* context = Parameter(2);
+
+    Return(RelationalComparison(mode, lhs, rhs, context));
+  }
+};
+
 // -----------------------------------------------------------------------------
 // ES6 section 20.1 Number Objects
 
 // ES6 section 20.1.2.2 Number.isFinite ( number )
-void Builtins::Generate_NumberIsFinite(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  CodeStubAssembler assembler(state);
-
-  Node* number = assembler.Parameter(1);
-
-  Label return_true(&assembler), return_false(&assembler);
-
-  // Check if {number} is a Smi.
-  assembler.GotoIf(assembler.TaggedIsSmi(number), &return_true);
-
-  // Check if {number} is a HeapNumber.
-  assembler.GotoUnless(assembler.WordEqual(assembler.LoadMap(number),
-                                           assembler.HeapNumberMapConstant()),
-                       &return_false);
+TF_BUILTIN(NumberIsFinite, CodeStubAssembler) {
+  Node* number = Parameter(1);
+
+  Label return_true(this), return_false(this);
+
+  // Check if {number} is a Smi.
+  GotoIf(TaggedIsSmi(number), &return_true);
+
+  // Check if {number} is a HeapNumber.
+  GotoUnless(IsHeapNumberMap(LoadMap(number)), &return_false);
 
   // Check if {number} contains a finite, non-NaN value.
-  Node* number_value = assembler.LoadHeapNumberValue(number);
-  assembler.BranchIfFloat64IsNaN(
-      assembler.Float64Sub(number_value, number_value), &return_false,
-      &return_true);
-
-  assembler.Bind(&return_true);
-  assembler.Return(assembler.BooleanConstant(true));
-
-  assembler.Bind(&return_false);
-  assembler.Return(assembler.BooleanConstant(false));
+  Node* number_value = LoadHeapNumberValue(number);
+  BranchIfFloat64IsNaN(Float64Sub(number_value, number_value), &return_false,
+                       &return_true);
+
+  Bind(&return_true);
+  Return(BooleanConstant(true));
+
+  Bind(&return_false);
+  Return(BooleanConstant(false));
 }
 
 // ES6 section 20.1.2.3 Number.isInteger ( number )
-void Builtins::Generate_NumberIsInteger(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  CodeStubAssembler assembler(state);
-
-  Node* number = assembler.Parameter(1);
-
-  Label return_true(&assembler), return_false(&assembler);
-
-  // Check if {number} is a Smi.
-  assembler.GotoIf(assembler.TaggedIsSmi(number), &return_true);
-
-  // Check if {number} is a HeapNumber.
-  assembler.GotoUnless(assembler.WordEqual(assembler.LoadMap(number),
-                                           assembler.HeapNumberMapConstant()),
-                       &return_false);
+TF_BUILTIN(NumberIsInteger, CodeStubAssembler) {
+  Node* number = Parameter(1);
+
+  Label return_true(this), return_false(this);
+
+  // Check if {number} is a Smi.
+  GotoIf(TaggedIsSmi(number), &return_true);
+
+  // Check if {number} is a HeapNumber.
+  GotoUnless(IsHeapNumberMap(LoadMap(number)), &return_false);
 
   // Load the actual value of {number}.
-  Node* number_value = assembler.LoadHeapNumberValue(number);
+  Node* number_value = LoadHeapNumberValue(number);
 
   // Truncate the value of {number} to an integer (or an infinity).
-  Node* integer = assembler.Float64Trunc(number_value);
+  Node* integer = Float64Trunc(number_value);
 
   // Check if {number}s value matches the integer (ruling out the infinities).
-  assembler.Branch(
-      assembler.Float64Equal(assembler.Float64Sub(number_value, integer),
-                             assembler.Float64Constant(0.0)),
-      &return_true, &return_false);
-
-  assembler.Bind(&return_true);
-  assembler.Return(assembler.BooleanConstant(true));
-
-  assembler.Bind(&return_false);
-  assembler.Return(assembler.BooleanConstant(false));
+  Branch(Float64Equal(Float64Sub(number_value, integer), Float64Constant(0.0)),
+         &return_true, &return_false);
+
+  Bind(&return_true);
+  Return(BooleanConstant(true));
+
+  Bind(&return_false);
+  Return(BooleanConstant(false));
 }
 
 // ES6 section 20.1.2.4 Number.isNaN ( number )
-void Builtins::Generate_NumberIsNaN(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  CodeStubAssembler assembler(state);
-
-  Node* number = assembler.Parameter(1);
-
-  Label return_true(&assembler), return_false(&assembler);
-
-  // Check if {number} is a Smi.
-  assembler.GotoIf(assembler.TaggedIsSmi(number), &return_false);
-
-  // Check if {number} is a HeapNumber.
-  assembler.GotoUnless(assembler.WordEqual(assembler.LoadMap(number),
-                                           assembler.HeapNumberMapConstant()),
-                       &return_false);
+TF_BUILTIN(NumberIsNaN, CodeStubAssembler) {
+  Node* number = Parameter(1);
+
+  Label return_true(this), return_false(this);
+
+  // Check if {number} is a Smi.
+  GotoIf(TaggedIsSmi(number), &return_false);
+
+  // Check if {number} is a HeapNumber.
+  GotoUnless(IsHeapNumberMap(LoadMap(number)), &return_false);
 
   // Check if {number} contains a NaN value.
-  Node* number_value = assembler.LoadHeapNumberValue(number);
-  assembler.BranchIfFloat64IsNaN(number_value, &return_true, &return_false);
-
-  assembler.Bind(&return_true);
-  assembler.Return(assembler.BooleanConstant(true));
-
-  assembler.Bind(&return_false);
-  assembler.Return(assembler.BooleanConstant(false));
+  Node* number_value = LoadHeapNumberValue(number);
+  BranchIfFloat64IsNaN(number_value, &return_true, &return_false);
+
+  Bind(&return_true);
+  Return(BooleanConstant(true));
+
+  Bind(&return_false);
+  Return(BooleanConstant(false));
 }
 
 // ES6 section 20.1.2.5 Number.isSafeInteger ( number )
-void Builtins::Generate_NumberIsSafeInteger(
-    compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  CodeStubAssembler assembler(state);
-
-  Node* number = assembler.Parameter(1);
-
-  Label return_true(&assembler), return_false(&assembler);
-
-  // Check if {number} is a Smi.
-  assembler.GotoIf(assembler.TaggedIsSmi(number), &return_true);
-
-  // Check if {number} is a HeapNumber.
-  assembler.GotoUnless(assembler.WordEqual(assembler.LoadMap(number),
-                                           assembler.HeapNumberMapConstant()),
-                       &return_false);
+TF_BUILTIN(NumberIsSafeInteger, CodeStubAssembler) {
+  Node* number = Parameter(1);
+
+  Label return_true(this), return_false(this);
+
+  // Check if {number} is a Smi.
+  GotoIf(TaggedIsSmi(number), &return_true);
+
+  // Check if {number} is a HeapNumber.
+  GotoUnless(IsHeapNumberMap(LoadMap(number)), &return_false);
 
   // Load the actual value of {number}.
-  Node* number_value = assembler.LoadHeapNumberValue(number);
+  Node* number_value = LoadHeapNumberValue(number);
 
   // Truncate the value of {number} to an integer (or an infinity).
-  Node* integer = assembler.Float64Trunc(number_value);
+  Node* integer = Float64Trunc(number_value);
 
   // Check if {number}s value matches the integer (ruling out the infinities).
-  assembler.GotoUnless(
-      assembler.Float64Equal(assembler.Float64Sub(number_value, integer),
-                             assembler.Float64Constant(0.0)),
+  GotoUnless(
+      Float64Equal(Float64Sub(number_value, integer), Float64Constant(0.0)),
       &return_false);
 
   // Check if the {integer} value is in safe integer range.
-  assembler.Branch(assembler.Float64LessThanOrEqual(
-                       assembler.Float64Abs(integer),
-                       assembler.Float64Constant(kMaxSafeInteger)),
-                   &return_true, &return_false);
-
-  assembler.Bind(&return_true);
-  assembler.Return(assembler.BooleanConstant(true));
-
-  assembler.Bind(&return_false);
-  assembler.Return(assembler.BooleanConstant(false));
+  Branch(Float64LessThanOrEqual(Float64Abs(integer),
+                                Float64Constant(kMaxSafeInteger)),
+         &return_true, &return_false);
+
+  Bind(&return_true);
+  Return(BooleanConstant(true));
+
+  Bind(&return_false);
+  Return(BooleanConstant(false));
 }
 
 // ES6 section 20.1.2.12 Number.parseFloat ( string )
-void Builtins::Generate_NumberParseFloat(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  typedef CodeStubAssembler::Variable Variable;
-  CodeStubAssembler assembler(state);
-
-  Node* context = assembler.Parameter(4);
+TF_BUILTIN(NumberParseFloat, CodeStubAssembler) {
+  Node* context = Parameter(4);
 
   // We might need to loop once for ToString conversion.
-  Variable var_input(&assembler, MachineRepresentation::kTagged);
-  Label loop(&assembler, &var_input);
-  var_input.Bind(assembler.Parameter(1));
-  assembler.Goto(&loop);
-  assembler.Bind(&loop);
+  Variable var_input(this, MachineRepresentation::kTagged);
+  Label loop(this, &var_input);
+  var_input.Bind(Parameter(1));
+  Goto(&loop);
+  Bind(&loop);
   {
     // Load the current {input} value.
     Node* input = var_input.value();
 
     // Check if the {input} is a HeapObject or a Smi.
-    Label if_inputissmi(&assembler), if_inputisnotsmi(&assembler);
-    assembler.Branch(assembler.TaggedIsSmi(input), &if_inputissmi,
-                     &if_inputisnotsmi);
-
-    assembler.Bind(&if_inputissmi);
+    Label if_inputissmi(this), if_inputisnotsmi(this);
+    Branch(TaggedIsSmi(input), &if_inputissmi, &if_inputisnotsmi);
+
+    Bind(&if_inputissmi);
     {
       // The {input} is already a Number, no need to do anything.
-      assembler.Return(input);
+      Return(input);
     }
 
-    assembler.Bind(&if_inputisnotsmi);
+    Bind(&if_inputisnotsmi);
     {
       // The {input} is a HeapObject, check if it's already a String.
-      Label if_inputisstring(&assembler), if_inputisnotstring(&assembler);
-      Node* input_map = assembler.LoadMap(input);
-      Node* input_instance_type = assembler.LoadMapInstanceType(input_map);
-      assembler.Branch(assembler.IsStringInstanceType(input_instance_type),
-                       &if_inputisstring, &if_inputisnotstring);
-
-      assembler.Bind(&if_inputisstring);
+      Label if_inputisstring(this), if_inputisnotstring(this);
+      Node* input_map = LoadMap(input);
+      Node* input_instance_type = LoadMapInstanceType(input_map);
+      Branch(IsStringInstanceType(input_instance_type), &if_inputisstring,
+             &if_inputisnotstring);
+
+      Bind(&if_inputisstring);
       {
         // The {input} is already a String, check if {input} contains
         // a cached array index.
-        Label if_inputcached(&assembler), if_inputnotcached(&assembler);
-        Node* input_hash = assembler.LoadNameHashField(input);
-        Node* input_bit = assembler.Word32And(
-            input_hash,
-            assembler.Int32Constant(String::kContainsCachedArrayIndexMask));
-        assembler.Branch(
-            assembler.Word32Equal(input_bit, assembler.Int32Constant(0)),
-            &if_inputcached, &if_inputnotcached);
-
-        assembler.Bind(&if_inputcached);
+        Label if_inputcached(this), if_inputnotcached(this);
+        Node* input_hash = LoadNameHashField(input);
+        Node* input_bit = Word32And(
+            input_hash, Int32Constant(String::kContainsCachedArrayIndexMask));
+        Branch(Word32Equal(input_bit, Int32Constant(0)), &if_inputcached,
+               &if_inputnotcached);
+
+        Bind(&if_inputcached);
         {
           // Just return the {input}s cached array index.
           Node* input_array_index =
-              assembler.DecodeWordFromWord32<String::ArrayIndexValueBits>(
-                  input_hash);
-          assembler.Return(assembler.SmiTag(input_array_index));
-        }
-
-        assembler.Bind(&if_inputnotcached);
+              DecodeWordFromWord32<String::ArrayIndexValueBits>(input_hash);
+          Return(SmiTag(input_array_index));
+        }
+
+        Bind(&if_inputnotcached);
         {
           // Need to fall back to the runtime to convert {input} to double.
-          assembler.Return(assembler.CallRuntime(Runtime::kStringParseFloat,
-                                                 context, input));
+          Return(CallRuntime(Runtime::kStringParseFloat, context, input));
         }
       }
 
-      assembler.Bind(&if_inputisnotstring);
+      Bind(&if_inputisnotstring);
       {
         // The {input} is neither a String nor a Smi, check for HeapNumber.
-        Label if_inputisnumber(&assembler),
-            if_inputisnotnumber(&assembler, Label::kDeferred);
-        assembler.Branch(
-            assembler.WordEqual(input_map, assembler.HeapNumberMapConstant()),
-            &if_inputisnumber, &if_inputisnotnumber);
-
-        assembler.Bind(&if_inputisnumber);
+        Label if_inputisnumber(this),
+            if_inputisnotnumber(this, Label::kDeferred);
+        Branch(IsHeapNumberMap(input_map), &if_inputisnumber,
+               &if_inputisnotnumber);
+
+        Bind(&if_inputisnumber);
         {
           // The {input} is already a Number, take care of -0.
-          Label if_inputiszero(&assembler), if_inputisnotzero(&assembler);
-          Node* input_value = assembler.LoadHeapNumberValue(input);
-          assembler.Branch(assembler.Float64Equal(
-                               input_value, assembler.Float64Constant(0.0)),
-                           &if_inputiszero, &if_inputisnotzero);
-
-          assembler.Bind(&if_inputiszero);
-          assembler.Return(assembler.SmiConstant(0));
-
-          assembler.Bind(&if_inputisnotzero);
-          assembler.Return(input);
-        }
-
-        assembler.Bind(&if_inputisnotnumber);
+          Label if_inputiszero(this), if_inputisnotzero(this);
+          Node* input_value = LoadHeapNumberValue(input);
+          Branch(Float64Equal(input_value, Float64Constant(0.0)),
+                 &if_inputiszero, &if_inputisnotzero);
+
+          Bind(&if_inputiszero);
+          Return(SmiConstant(0));
+
+          Bind(&if_inputisnotzero);
+          Return(input);
+        }
+
+        Bind(&if_inputisnotnumber);
         {
           // Need to convert the {input} to String first.
           // TODO(bmeurer): This could be more efficient if necessary.
-          Callable callable = CodeFactory::ToString(assembler.isolate());
-          var_input.Bind(assembler.CallStub(callable, context, input));
-          assembler.Goto(&loop);
+          Callable callable = CodeFactory::ToString(isolate());
+          var_input.Bind(CallStub(callable, context, input));
+          Goto(&loop);
         }
       }
     }
   }
 }
 
 // ES6 section 20.1.2.13 Number.parseInt ( string, radix )
-void Builtins::Generate_NumberParseInt(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  CodeStubAssembler assembler(state);
-
-  Node* input = assembler.Parameter(1);
-  Node* radix = assembler.Parameter(2);
-  Node* context = assembler.Parameter(5);
+TF_BUILTIN(NumberParseInt, CodeStubAssembler) {
+  Node* input = Parameter(1);
+  Node* radix = Parameter(2);
+  Node* context = Parameter(5);
 
   // Check if {radix} is treated as 10 (i.e. undefined, 0 or 10).
-  Label if_radix10(&assembler), if_generic(&assembler, Label::kDeferred);
-  assembler.GotoIf(assembler.WordEqual(radix, assembler.UndefinedConstant()),
-                   &if_radix10);
-  assembler.GotoIf(
-      assembler.WordEqual(radix, assembler.SmiConstant(Smi::FromInt(10))),
-      &if_radix10);
-  assembler.GotoIf(
-      assembler.WordEqual(radix, assembler.SmiConstant(Smi::FromInt(0))),
-      &if_radix10);
-  assembler.Goto(&if_generic);
+  Label if_radix10(this), if_generic(this, Label::kDeferred);
+  GotoIf(WordEqual(radix, UndefinedConstant()), &if_radix10);
+  GotoIf(WordEqual(radix, SmiConstant(Smi::FromInt(10))), &if_radix10);
+  GotoIf(WordEqual(radix, SmiConstant(Smi::FromInt(0))), &if_radix10);
+  Goto(&if_generic);
 
-  assembler.Bind(&if_radix10);
+  Bind(&if_radix10);
   {
     // Check if we can avoid the ToString conversion on {input}.
-    Label if_inputissmi(&assembler), if_inputisheapnumber(&assembler),
-        if_inputisstring(&assembler);
-    assembler.GotoIf(assembler.TaggedIsSmi(input), &if_inputissmi);
-    Node* input_map = assembler.LoadMap(input);
-    assembler.GotoIf(
-        assembler.WordEqual(input_map, assembler.HeapNumberMapConstant()),
-        &if_inputisheapnumber);
-    Node* input_instance_type = assembler.LoadMapInstanceType(input_map);
-    assembler.Branch(assembler.IsStringInstanceType(input_instance_type),
-                     &if_inputisstring, &if_generic);
+    Label if_inputissmi(this), if_inputisheapnumber(this),
+        if_inputisstring(this);
+    GotoIf(TaggedIsSmi(input), &if_inputissmi);
+    Node* input_map = LoadMap(input);
+    GotoIf(IsHeapNumberMap(input_map), &if_inputisheapnumber);
+    Node* input_instance_type = LoadMapInstanceType(input_map);
+    Branch(IsStringInstanceType(input_instance_type), &if_inputisstring,
+           &if_generic);
 
-    assembler.Bind(&if_inputissmi);
+    Bind(&if_inputissmi);
     {
       // Just return the {input}.
-      assembler.Return(input);
+      Return(input);
     }
 
-    assembler.Bind(&if_inputisheapnumber);
+    Bind(&if_inputisheapnumber);
     {
       // Check if the {input} value is in Signed32 range.
-      Label if_inputissigned32(&assembler);
-      Node* input_value = assembler.LoadHeapNumberValue(input);
-      Node* input_value32 = assembler.TruncateFloat64ToWord32(input_value);
-      assembler.GotoIf(
-          assembler.Float64Equal(input_value,
-                                 assembler.ChangeInt32ToFloat64(input_value32)),
-          &if_inputissigned32);
+      Label if_inputissigned32(this);
+      Node* input_value = LoadHeapNumberValue(input);
+      Node* input_value32 = TruncateFloat64ToWord32(input_value);
+      GotoIf(Float64Equal(input_value, ChangeInt32ToFloat64(input_value32)),
+             &if_inputissigned32);
 
       // Check if the absolute {input} value is in the ]0.01,1e9[ range.
-      Node* input_value_abs = assembler.Float64Abs(input_value);
+      Node* input_value_abs = Float64Abs(input_value);
 
-      assembler.GotoUnless(assembler.Float64LessThan(
-                               input_value_abs, assembler.Float64Constant(1e9)),
-                           &if_generic);
-      assembler.Branch(assembler.Float64LessThan(
-                           assembler.Float64Constant(0.01), input_value_abs),
-                       &if_inputissigned32, &if_generic);
+      GotoUnless(Float64LessThan(input_value_abs, Float64Constant(1e9)),
+                 &if_generic);
+      Branch(Float64LessThan(Float64Constant(0.01), input_value_abs),
+             &if_inputissigned32, &if_generic);
 
       // Return the truncated int32 value, and return the tagged result.
-      assembler.Bind(&if_inputissigned32);
-      Node* result = assembler.ChangeInt32ToTagged(input_value32);
-      assembler.Return(result);
+      Bind(&if_inputissigned32);
+      Node* result = ChangeInt32ToTagged(input_value32);
+      Return(result);
     }
 
-    assembler.Bind(&if_inputisstring);
+    Bind(&if_inputisstring);
     {
       // Check if the String {input} has a cached array index.
-      Node* input_hash = assembler.LoadNameHashField(input);
-      Node* input_bit = assembler.Word32And(
-          input_hash,
-          assembler.Int32Constant(String::kContainsCachedArrayIndexMask));
-      assembler.GotoIf(
-          assembler.Word32NotEqual(input_bit, assembler.Int32Constant(0)),
-          &if_generic);
+      Node* input_hash = LoadNameHashField(input);
+      Node* input_bit = Word32And(
+          input_hash, Int32Constant(String::kContainsCachedArrayIndexMask));
+      GotoIf(Word32NotEqual(input_bit, Int32Constant(0)), &if_generic);
 
       // Return the cached array index as result.
       Node* input_index =
-          assembler.DecodeWordFromWord32<String::ArrayIndexValueBits>(
-              input_hash);
-      Node* result = assembler.SmiTag(input_index);
-      assembler.Return(result);
+          DecodeWordFromWord32<String::ArrayIndexValueBits>(input_hash);
+      Node* result = SmiTag(input_index);
+      Return(result);
     }
   }
 
-  assembler.Bind(&if_generic);
+  Bind(&if_generic);
   {
-    Node* result =
-        assembler.CallRuntime(Runtime::kStringParseInt, context, input, radix);
-    assembler.Return(result);
+    Node* result = CallRuntime(Runtime::kStringParseInt, context, input, radix);
+    Return(result);
   }
 }
 
 // ES6 section 20.1.3.2 Number.prototype.toExponential ( fractionDigits )
 BUILTIN(NumberPrototypeToExponential) {
   HandleScope scope(isolate);
   Handle<Object> value = args.at<Object>(0);
   Handle<Object> fraction_digits = args.atOrUndefined(isolate, 1);
 
   // Unwrap the receiver {value}.
@@ skipping 192 matching lines @@
                                 : isolate->heap()->infinity_string();
   }
   char* const str =
       DoubleToRadixCString(value_number, static_cast<int>(radix_number));
   Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str);
   DeleteArray(str);
   return *result;
 }
 
 // ES6 section 20.1.3.7 Number.prototype.valueOf ( )
-void Builtins::Generate_NumberPrototypeValueOf(
-    compiler::CodeAssemblerState* state) {
-  typedef compiler::Node Node;
-  CodeStubAssembler assembler(state);
-
-  Node* receiver = assembler.Parameter(0);
-  Node* context = assembler.Parameter(3);
-
-  Node* result = assembler.ToThisValue(
-      context, receiver, PrimitiveType::kNumber, "Number.prototype.valueOf");
-  assembler.Return(result);
+TF_BUILTIN(NumberPrototypeValueOf, CodeStubAssembler) {
+  Node* receiver = Parameter(0);
+  Node* context = Parameter(3);
+
+  Node* result = ToThisValue(context, receiver, PrimitiveType::kNumber,
+                             "Number.prototype.valueOf");
+  Return(result);
 }
 
-// static
-void Builtins::Generate_Add(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  typedef CodeStubAssembler::Variable Variable;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
+TF_BUILTIN(Add, CodeStubAssembler) {
+  Node* left = Parameter(0);
+  Node* right = Parameter(1);
+  Node* context = Parameter(2);
 
   // Shared entry for floating point addition.
-  Label do_fadd(&assembler);
-  Variable var_fadd_lhs(&assembler, MachineRepresentation::kFloat64),
-      var_fadd_rhs(&assembler, MachineRepresentation::kFloat64);
+  Label do_fadd(this);
+  Variable var_fadd_lhs(this, MachineRepresentation::kFloat64),
+      var_fadd_rhs(this, MachineRepresentation::kFloat64);
 
   // We might need to loop several times due to ToPrimitive, ToString and/or
   // ToNumber conversions.
-  Variable var_lhs(&assembler, MachineRepresentation::kTagged),
-      var_rhs(&assembler, MachineRepresentation::kTagged),
-      var_result(&assembler, MachineRepresentation::kTagged);
+  Variable var_lhs(this, MachineRepresentation::kTagged),
+      var_rhs(this, MachineRepresentation::kTagged),
+      var_result(this, MachineRepresentation::kTagged);
   Variable* loop_vars[2] = {&var_lhs, &var_rhs};
-  Label loop(&assembler, 2, loop_vars), end(&assembler),
-      string_add_convert_left(&assembler, Label::kDeferred),
-      string_add_convert_right(&assembler, Label::kDeferred);
+  Label loop(this, 2, loop_vars), end(this),
+      string_add_convert_left(this, Label::kDeferred),
+      string_add_convert_right(this, Label::kDeferred);
   var_lhs.Bind(left);
   var_rhs.Bind(right);
-  assembler.Goto(&loop);
-  assembler.Bind(&loop);
+  Goto(&loop);
+  Bind(&loop);
   {
     // Load the current {lhs} and {rhs} values.
     Node* lhs = var_lhs.value();
     Node* rhs = var_rhs.value();
 
     // Check if the {lhs} is a Smi or a HeapObject.
-    Label if_lhsissmi(&assembler), if_lhsisnotsmi(&assembler);
-    assembler.Branch(assembler.TaggedIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi);
-
-    assembler.Bind(&if_lhsissmi);
+    Label if_lhsissmi(this), if_lhsisnotsmi(this);
+    Branch(TaggedIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi);
+
+    Bind(&if_lhsissmi);
     {
       // Check if the {rhs} is also a Smi.
-      Label if_rhsissmi(&assembler), if_rhsisnotsmi(&assembler);
-      assembler.Branch(assembler.TaggedIsSmi(rhs), &if_rhsissmi,
-                       &if_rhsisnotsmi);
-
-      assembler.Bind(&if_rhsissmi);
+      Label if_rhsissmi(this), if_rhsisnotsmi(this);
+      Branch(TaggedIsSmi(rhs), &if_rhsissmi, &if_rhsisnotsmi);
+
+      Bind(&if_rhsissmi);
       {
         // Try fast Smi addition first.
-        Node* pair =
-            assembler.IntPtrAddWithOverflow(assembler.BitcastTaggedToWord(lhs),
-                                            assembler.BitcastTaggedToWord(rhs));
-        Node* overflow = assembler.Projection(1, pair);
+        Node* pair = IntPtrAddWithOverflow(BitcastTaggedToWord(lhs),
+                                           BitcastTaggedToWord(rhs));
+        Node* overflow = Projection(1, pair);
 
         // Check if the Smi additon overflowed.
-        Label if_overflow(&assembler), if_notoverflow(&assembler);
-        assembler.Branch(overflow, &if_overflow, &if_notoverflow);
-
-        assembler.Bind(&if_overflow);
-        {
-          var_fadd_lhs.Bind(assembler.SmiToFloat64(lhs));
-          var_fadd_rhs.Bind(assembler.SmiToFloat64(rhs));
-          assembler.Goto(&do_fadd);
+        Label if_overflow(this), if_notoverflow(this);
+        Branch(overflow, &if_overflow, &if_notoverflow);
+
+        Bind(&if_overflow);
+        {
+          var_fadd_lhs.Bind(SmiToFloat64(lhs));
+          var_fadd_rhs.Bind(SmiToFloat64(rhs));
+          Goto(&do_fadd);
         }
 
-        assembler.Bind(&if_notoverflow);
-        var_result.Bind(
-            assembler.BitcastWordToTaggedSigned(assembler.Projection(0, pair)));
-        assembler.Goto(&end);
+        Bind(&if_notoverflow);
+        var_result.Bind(BitcastWordToTaggedSigned(Projection(0, pair)));
+        Goto(&end);
       }
 
-      assembler.Bind(&if_rhsisnotsmi);
+      Bind(&if_rhsisnotsmi);
       {
         // Load the map of {rhs}.
-        Node* rhs_map = assembler.LoadMap(rhs);
+        Node* rhs_map = LoadMap(rhs);
 
         // Check if the {rhs} is a HeapNumber.
-        Label if_rhsisnumber(&assembler),
-            if_rhsisnotnumber(&assembler, Label::kDeferred);
-        assembler.Branch(assembler.IsHeapNumberMap(rhs_map), &if_rhsisnumber,
-                         &if_rhsisnotnumber);
-
-        assembler.Bind(&if_rhsisnumber);
-        {
-          var_fadd_lhs.Bind(assembler.SmiToFloat64(lhs));
-          var_fadd_rhs.Bind(assembler.LoadHeapNumberValue(rhs));
-          assembler.Goto(&do_fadd);
+        Label if_rhsisnumber(this), if_rhsisnotnumber(this, Label::kDeferred);
+        Branch(IsHeapNumberMap(rhs_map), &if_rhsisnumber, &if_rhsisnotnumber);
+
+        Bind(&if_rhsisnumber);
+        {
+          var_fadd_lhs.Bind(SmiToFloat64(lhs));
+          var_fadd_rhs.Bind(LoadHeapNumberValue(rhs));
+          Goto(&do_fadd);
         }
 
-        assembler.Bind(&if_rhsisnotnumber);
+        Bind(&if_rhsisnotnumber);
         {
           // Load the instance type of {rhs}.
-          Node* rhs_instance_type = assembler.LoadMapInstanceType(rhs_map);
+          Node* rhs_instance_type = LoadMapInstanceType(rhs_map);
 
           // Check if the {rhs} is a String.
-          Label if_rhsisstring(&assembler, Label::kDeferred),
-              if_rhsisnotstring(&assembler, Label::kDeferred);
-          assembler.Branch(assembler.IsStringInstanceType(rhs_instance_type),
-                           &if_rhsisstring, &if_rhsisnotstring);
-
-          assembler.Bind(&if_rhsisstring);
+          Label if_rhsisstring(this, Label::kDeferred),
+              if_rhsisnotstring(this, Label::kDeferred);
+          Branch(IsStringInstanceType(rhs_instance_type), &if_rhsisstring,
+                 &if_rhsisnotstring);
+
+          Bind(&if_rhsisstring);
           {
             var_lhs.Bind(lhs);
             var_rhs.Bind(rhs);
-            assembler.Goto(&string_add_convert_left);
-          }
-
-          assembler.Bind(&if_rhsisnotstring);
+            Goto(&string_add_convert_left);
+          }
+
+          Bind(&if_rhsisnotstring);
           {
             // Check if {rhs} is a JSReceiver.
-            Label if_rhsisreceiver(&assembler, Label::kDeferred),
-                if_rhsisnotreceiver(&assembler, Label::kDeferred);
-            assembler.Branch(
-                assembler.IsJSReceiverInstanceType(rhs_instance_type),
-                &if_rhsisreceiver, &if_rhsisnotreceiver);
-
-            assembler.Bind(&if_rhsisreceiver);
+            Label if_rhsisreceiver(this, Label::kDeferred),
+                if_rhsisnotreceiver(this, Label::kDeferred);
+            Branch(IsJSReceiverInstanceType(rhs_instance_type),
+                   &if_rhsisreceiver, &if_rhsisnotreceiver);
+
+            Bind(&if_rhsisreceiver);
             {
               // Convert {rhs} to a primitive first passing no hint.
               Callable callable =
-                  CodeFactory::NonPrimitiveToPrimitive(assembler.isolate());
-              var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-              assembler.Goto(&loop);
-            }
-
-            assembler.Bind(&if_rhsisnotreceiver);
+                  CodeFactory::NonPrimitiveToPrimitive(isolate());
+              var_rhs.Bind(CallStub(callable, context, rhs));
+              Goto(&loop);
+            }
+
+            Bind(&if_rhsisnotreceiver);
             {
               // Convert {rhs} to a Number first.
-              Callable callable =
-                  CodeFactory::NonNumberToNumber(assembler.isolate());
-              var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-              assembler.Goto(&loop);
+              Callable callable = CodeFactory::NonNumberToNumber(isolate());
+              var_rhs.Bind(CallStub(callable, context, rhs));
+              Goto(&loop);
             }
           }
         }
       }
     }
 
-    assembler.Bind(&if_lhsisnotsmi);
+    Bind(&if_lhsisnotsmi);
     {
       // Load the map and instance type of {lhs}.
-      Node* lhs_instance_type = assembler.LoadInstanceType(lhs);
+      Node* lhs_instance_type = LoadInstanceType(lhs);
 
       // Check if {lhs} is a String.
-      Label if_lhsisstring(&assembler), if_lhsisnotstring(&assembler);
-      assembler.Branch(assembler.IsStringInstanceType(lhs_instance_type),
-                       &if_lhsisstring, &if_lhsisnotstring);
-
-      assembler.Bind(&if_lhsisstring);
+      Label if_lhsisstring(this), if_lhsisnotstring(this);
+      Branch(IsStringInstanceType(lhs_instance_type), &if_lhsisstring,
+             &if_lhsisnotstring);
+
+      Bind(&if_lhsisstring);
       {
         var_lhs.Bind(lhs);
         var_rhs.Bind(rhs);
-        assembler.Goto(&string_add_convert_right);
+        Goto(&string_add_convert_right);
       }
 
-      assembler.Bind(&if_lhsisnotstring);
+      Bind(&if_lhsisnotstring);
       {
         // Check if {rhs} is a Smi.
-        Label if_rhsissmi(&assembler), if_rhsisnotsmi(&assembler);
-        assembler.Branch(assembler.TaggedIsSmi(rhs), &if_rhsissmi,
-                         &if_rhsisnotsmi);
-
-        assembler.Bind(&if_rhsissmi);
+        Label if_rhsissmi(this), if_rhsisnotsmi(this);
+        Branch(TaggedIsSmi(rhs), &if_rhsissmi, &if_rhsisnotsmi);
+
+        Bind(&if_rhsissmi);
         {
           // Check if {lhs} is a Number.
-          Label if_lhsisnumber(&assembler),
-              if_lhsisnotnumber(&assembler, Label::kDeferred);
-          assembler.Branch(
-              assembler.Word32Equal(lhs_instance_type,
-                                    assembler.Int32Constant(HEAP_NUMBER_TYPE)),
+          Label if_lhsisnumber(this), if_lhsisnotnumber(this, Label::kDeferred);
+          Branch(
+              Word32Equal(lhs_instance_type, Int32Constant(HEAP_NUMBER_TYPE)),
               &if_lhsisnumber, &if_lhsisnotnumber);
 
-          assembler.Bind(&if_lhsisnumber);
+          Bind(&if_lhsisnumber);
           {
             // The {lhs} is a HeapNumber, the {rhs} is a Smi, just add them.
-            var_fadd_lhs.Bind(assembler.LoadHeapNumberValue(lhs));
-            var_fadd_rhs.Bind(assembler.SmiToFloat64(rhs));
-            assembler.Goto(&do_fadd);
-          }
-
-          assembler.Bind(&if_lhsisnotnumber);
+            var_fadd_lhs.Bind(LoadHeapNumberValue(lhs));
+            var_fadd_rhs.Bind(SmiToFloat64(rhs));
+            Goto(&do_fadd);
+          }
+
+          Bind(&if_lhsisnotnumber);
           {
             // The {lhs} is neither a Number nor a String, and the {rhs} is a
             // Smi.
-            Label if_lhsisreceiver(&assembler, Label::kDeferred),
-                if_lhsisnotreceiver(&assembler, Label::kDeferred);
-            assembler.Branch(
-                assembler.IsJSReceiverInstanceType(lhs_instance_type),
-                &if_lhsisreceiver, &if_lhsisnotreceiver);
-
-            assembler.Bind(&if_lhsisreceiver);
+            Label if_lhsisreceiver(this, Label::kDeferred),
+                if_lhsisnotreceiver(this, Label::kDeferred);
+            Branch(IsJSReceiverInstanceType(lhs_instance_type),
+                   &if_lhsisreceiver, &if_lhsisnotreceiver);
+
+            Bind(&if_lhsisreceiver);
             {
               // Convert {lhs} to a primitive first passing no hint.
               Callable callable =
-                  CodeFactory::NonPrimitiveToPrimitive(assembler.isolate());
-              var_lhs.Bind(assembler.CallStub(callable, context, lhs));
-              assembler.Goto(&loop);
-            }
-
-            assembler.Bind(&if_lhsisnotreceiver);
+                  CodeFactory::NonPrimitiveToPrimitive(isolate());
+              var_lhs.Bind(CallStub(callable, context, lhs));
+              Goto(&loop);
+            }
+
+            Bind(&if_lhsisnotreceiver);
             {
               // Convert {lhs} to a Number first.
-              Callable callable =
-                  CodeFactory::NonNumberToNumber(assembler.isolate());
-              var_lhs.Bind(assembler.CallStub(callable, context, lhs));
-              assembler.Goto(&loop);
+              Callable callable = CodeFactory::NonNumberToNumber(isolate());
+              var_lhs.Bind(CallStub(callable, context, lhs));
+              Goto(&loop);
             }
           }
         }
 
-        assembler.Bind(&if_rhsisnotsmi);
+        Bind(&if_rhsisnotsmi);
         {
           // Load the instance type of {rhs}.
-          Node* rhs_instance_type = assembler.LoadInstanceType(rhs);
+          Node* rhs_instance_type = LoadInstanceType(rhs);
 
           // Check if {rhs} is a String.
-          Label if_rhsisstring(&assembler), if_rhsisnotstring(&assembler);
-          assembler.Branch(assembler.IsStringInstanceType(rhs_instance_type),
-                           &if_rhsisstring, &if_rhsisnotstring);
-
-          assembler.Bind(&if_rhsisstring);
+          Label if_rhsisstring(this), if_rhsisnotstring(this);
+          Branch(IsStringInstanceType(rhs_instance_type), &if_rhsisstring,
+                 &if_rhsisnotstring);
+
+          Bind(&if_rhsisstring);
           {
             var_lhs.Bind(lhs);
             var_rhs.Bind(rhs);
-            assembler.Goto(&string_add_convert_left);
-          }
-
-          assembler.Bind(&if_rhsisnotstring);
+            Goto(&string_add_convert_left);
+          }
+
+          Bind(&if_rhsisnotstring);
           {
             // Check if {lhs} is a HeapNumber.
-            Label if_lhsisnumber(&assembler), if_lhsisnotnumber(&assembler);
-            assembler.Branch(assembler.Word32Equal(
-                                 lhs_instance_type,
-                                 assembler.Int32Constant(HEAP_NUMBER_TYPE)),
-                             &if_lhsisnumber, &if_lhsisnotnumber);
-
-            assembler.Bind(&if_lhsisnumber);
+            Label if_lhsisnumber(this), if_lhsisnotnumber(this);
+            Branch(
+                Word32Equal(lhs_instance_type, Int32Constant(HEAP_NUMBER_TYPE)),
+                &if_lhsisnumber, &if_lhsisnotnumber);
+
+            Bind(&if_lhsisnumber);
             {
               // Check if {rhs} is also a HeapNumber.
-              Label if_rhsisnumber(&assembler),
-                  if_rhsisnotnumber(&assembler, Label::kDeferred);
-              assembler.Branch(assembler.Word32Equal(
-                                   rhs_instance_type,
-                                   assembler.Int32Constant(HEAP_NUMBER_TYPE)),
-                               &if_rhsisnumber, &if_rhsisnotnumber);
-
-              assembler.Bind(&if_rhsisnumber);
+              Label if_rhsisnumber(this),
+                  if_rhsisnotnumber(this, Label::kDeferred);
+              Branch(Word32Equal(rhs_instance_type,
+                                 Int32Constant(HEAP_NUMBER_TYPE)),
+                     &if_rhsisnumber, &if_rhsisnotnumber);
+
+              Bind(&if_rhsisnumber);
               {
                 // Perform a floating point addition.
-                var_fadd_lhs.Bind(assembler.LoadHeapNumberValue(lhs));
-                var_fadd_rhs.Bind(assembler.LoadHeapNumberValue(rhs));
-                assembler.Goto(&do_fadd);
+                var_fadd_lhs.Bind(LoadHeapNumberValue(lhs));
+                var_fadd_rhs.Bind(LoadHeapNumberValue(rhs));
+                Goto(&do_fadd);
               }
 
-              assembler.Bind(&if_rhsisnotnumber);
+              Bind(&if_rhsisnotnumber);
               {
                 // Check if {rhs} is a JSReceiver.
-                Label if_rhsisreceiver(&assembler, Label::kDeferred),
-                    if_rhsisnotreceiver(&assembler, Label::kDeferred);
-                assembler.Branch(
-                    assembler.IsJSReceiverInstanceType(rhs_instance_type),
-                    &if_rhsisreceiver, &if_rhsisnotreceiver);
-
-                assembler.Bind(&if_rhsisreceiver);
+                Label if_rhsisreceiver(this, Label::kDeferred),
+                    if_rhsisnotreceiver(this, Label::kDeferred);
+                Branch(IsJSReceiverInstanceType(rhs_instance_type),
+                       &if_rhsisreceiver, &if_rhsisnotreceiver);
+
+                Bind(&if_rhsisreceiver);
                 {
                   // Convert {rhs} to a primitive first passing no hint.
                   Callable callable =
-                      CodeFactory::NonPrimitiveToPrimitive(assembler.isolate());
-                  var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-                  assembler.Goto(&loop);
+                      CodeFactory::NonPrimitiveToPrimitive(isolate());
+                  var_rhs.Bind(CallStub(callable, context, rhs));
+                  Goto(&loop);
                 }
 
-                assembler.Bind(&if_rhsisnotreceiver);
+                Bind(&if_rhsisnotreceiver);
                 {
                   // Convert {rhs} to a Number first.
-                  Callable callable =
-                      CodeFactory::NonNumberToNumber(assembler.isolate());
-                  var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-                  assembler.Goto(&loop);
+                  Callable callable = CodeFactory::NonNumberToNumber(isolate());
+                  var_rhs.Bind(CallStub(callable, context, rhs));
+                  Goto(&loop);
                 }
               }
             }
 
-            assembler.Bind(&if_lhsisnotnumber);
+            Bind(&if_lhsisnotnumber);
             {
               // Check if {lhs} is a JSReceiver.
-              Label if_lhsisreceiver(&assembler, Label::kDeferred),
-                  if_lhsisnotreceiver(&assembler);
-              assembler.Branch(
-                  assembler.IsJSReceiverInstanceType(lhs_instance_type),
-                  &if_lhsisreceiver, &if_lhsisnotreceiver);
-
-              assembler.Bind(&if_lhsisreceiver);
+              Label if_lhsisreceiver(this, Label::kDeferred),
+                  if_lhsisnotreceiver(this);
+              Branch(IsJSReceiverInstanceType(lhs_instance_type),
+                     &if_lhsisreceiver, &if_lhsisnotreceiver);
+
+              Bind(&if_lhsisreceiver);
               {
                 // Convert {lhs} to a primitive first passing no hint.
                 Callable callable =
-                    CodeFactory::NonPrimitiveToPrimitive(assembler.isolate());
-                var_lhs.Bind(assembler.CallStub(callable, context, lhs));
-                assembler.Goto(&loop);
+                    CodeFactory::NonPrimitiveToPrimitive(isolate());
+                var_lhs.Bind(CallStub(callable, context, lhs));
+                Goto(&loop);
               }
 
-              assembler.Bind(&if_lhsisnotreceiver);
+              Bind(&if_lhsisnotreceiver);
               {
                 // Check if {rhs} is a JSReceiver.
-                Label if_rhsisreceiver(&assembler, Label::kDeferred),
-                    if_rhsisnotreceiver(&assembler, Label::kDeferred);
-                assembler.Branch(
-                    assembler.IsJSReceiverInstanceType(rhs_instance_type),
-                    &if_rhsisreceiver, &if_rhsisnotreceiver);
-
-                assembler.Bind(&if_rhsisreceiver);
+                Label if_rhsisreceiver(this, Label::kDeferred),
+                    if_rhsisnotreceiver(this, Label::kDeferred);
+                Branch(IsJSReceiverInstanceType(rhs_instance_type),
+                       &if_rhsisreceiver, &if_rhsisnotreceiver);
+
+                Bind(&if_rhsisreceiver);
                 {
                   // Convert {rhs} to a primitive first passing no hint.
                   Callable callable =
-                      CodeFactory::NonPrimitiveToPrimitive(assembler.isolate());
-                  var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-                  assembler.Goto(&loop);
+                      CodeFactory::NonPrimitiveToPrimitive(isolate());
+                  var_rhs.Bind(CallStub(callable, context, rhs));
+                  Goto(&loop);
                 }
 
-                assembler.Bind(&if_rhsisnotreceiver);
+                Bind(&if_rhsisnotreceiver);
                 {
                   // Convert {lhs} to a Number first.
-                  Callable callable =
-                      CodeFactory::NonNumberToNumber(assembler.isolate());
-                  var_lhs.Bind(assembler.CallStub(callable, context, lhs));
-                  assembler.Goto(&loop);
+                  Callable callable = CodeFactory::NonNumberToNumber(isolate());
+                  var_lhs.Bind(CallStub(callable, context, lhs));
+                  Goto(&loop);
                 }
               }
             }
           }
         }
       }
     }
   }
-  assembler.Bind(&string_add_convert_left);
+  Bind(&string_add_convert_left);
+  {
+    // Convert {lhs}, which is a Smi, to a String and concatenate the
+    // resulting string with the String {rhs}.
+    Callable callable =
+        CodeFactory::StringAdd(isolate(), STRING_ADD_CONVERT_LEFT, NOT_TENURED);
+    var_result.Bind(
+        CallStub(callable, context, var_lhs.value(), var_rhs.value()));
+    Goto(&end);
+  }
+
+  Bind(&string_add_convert_right);
   {
     // Convert {lhs}, which is a Smi, to a String and concatenate the
     // resulting string with the String {rhs}.
     Callable callable = CodeFactory::StringAdd(
-        assembler.isolate(), STRING_ADD_CONVERT_LEFT, NOT_TENURED);
-    var_result.Bind(assembler.CallStub(callable, context, var_lhs.value(),
-                                       var_rhs.value()));
-    assembler.Goto(&end);
-  }
-
-  assembler.Bind(&string_add_convert_right);
-  {
-    // Convert {lhs}, which is a Smi, to a String and concatenate the
-    // resulting string with the String {rhs}.
-    Callable callable = CodeFactory::StringAdd(
-        assembler.isolate(), STRING_ADD_CONVERT_RIGHT, NOT_TENURED);
-    var_result.Bind(assembler.CallStub(callable, context, var_lhs.value(),
-                                       var_rhs.value()));
-    assembler.Goto(&end);
-  }
-
-  assembler.Bind(&do_fadd);
+        isolate(), STRING_ADD_CONVERT_RIGHT, NOT_TENURED);
+    var_result.Bind(
+        CallStub(callable, context, var_lhs.value(), var_rhs.value()));
+    Goto(&end);
+  }
+
+  Bind(&do_fadd);
   {
     Node* lhs_value = var_fadd_lhs.value();
     Node* rhs_value = var_fadd_rhs.value();
-    Node* value = assembler.Float64Add(lhs_value, rhs_value);
-    Node* result = assembler.AllocateHeapNumberWithValue(value);
+    Node* value = Float64Add(lhs_value, rhs_value);
+    Node* result = AllocateHeapNumberWithValue(value);
     var_result.Bind(result);
-    assembler.Goto(&end);
-  }
-  assembler.Bind(&end);
-  assembler.Return(var_result.value());
-}
-
-void Builtins::Generate_Subtract(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  typedef CodeStubAssembler::Variable Variable;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
+    Goto(&end);
+  }
+  Bind(&end);
+  Return(var_result.value());
+}
+
+TF_BUILTIN(Subtract, CodeStubAssembler) {
+  Node* left = Parameter(0);
+  Node* right = Parameter(1);
+  Node* context = Parameter(2);
 
   // Shared entry for floating point subtraction.
-  Label do_fsub(&assembler), end(&assembler);
-  Variable var_fsub_lhs(&assembler, MachineRepresentation::kFloat64),
-      var_fsub_rhs(&assembler, MachineRepresentation::kFloat64);
+  Label do_fsub(this), end(this);
+  Variable var_fsub_lhs(this, MachineRepresentation::kFloat64),
+      var_fsub_rhs(this, MachineRepresentation::kFloat64);
 
   // We might need to loop several times due to ToPrimitive and/or ToNumber
   // conversions.
-  Variable var_lhs(&assembler, MachineRepresentation::kTagged),
-      var_rhs(&assembler, MachineRepresentation::kTagged),
-      var_result(&assembler, MachineRepresentation::kTagged);
+  Variable var_lhs(this, MachineRepresentation::kTagged),
+      var_rhs(this, MachineRepresentation::kTagged),
+      var_result(this, MachineRepresentation::kTagged);
   Variable* loop_vars[2] = {&var_lhs, &var_rhs};
-  Label loop(&assembler, 2, loop_vars);
+  Label loop(this, 2, loop_vars);
   var_lhs.Bind(left);
   var_rhs.Bind(right);
-  assembler.Goto(&loop);
-  assembler.Bind(&loop);
+  Goto(&loop);
+  Bind(&loop);
   {
     // Load the current {lhs} and {rhs} values.
     Node* lhs = var_lhs.value();
     Node* rhs = var_rhs.value();
 
     // Check if the {lhs} is a Smi or a HeapObject.
-    Label if_lhsissmi(&assembler), if_lhsisnotsmi(&assembler);
-    assembler.Branch(assembler.TaggedIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi);
-
-    assembler.Bind(&if_lhsissmi);
+    Label if_lhsissmi(this), if_lhsisnotsmi(this);
+    Branch(TaggedIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi);
+
+    Bind(&if_lhsissmi);
     {
       // Check if the {rhs} is also a Smi.
-      Label if_rhsissmi(&assembler), if_rhsisnotsmi(&assembler);
-      assembler.Branch(assembler.TaggedIsSmi(rhs), &if_rhsissmi,
-                       &if_rhsisnotsmi);
-
-      assembler.Bind(&if_rhsissmi);
+      Label if_rhsissmi(this), if_rhsisnotsmi(this);
+      Branch(TaggedIsSmi(rhs), &if_rhsissmi, &if_rhsisnotsmi);
+
+      Bind(&if_rhsissmi);
       {
         // Try a fast Smi subtraction first.
-        Node* pair =
-            assembler.IntPtrSubWithOverflow(assembler.BitcastTaggedToWord(lhs),
-                                            assembler.BitcastTaggedToWord(rhs));
-        Node* overflow = assembler.Projection(1, pair);
+        Node* pair = IntPtrSubWithOverflow(BitcastTaggedToWord(lhs),
+                                           BitcastTaggedToWord(rhs));
+        Node* overflow = Projection(1, pair);
 
         // Check if the Smi subtraction overflowed.
-        Label if_overflow(&assembler), if_notoverflow(&assembler);
-        assembler.Branch(overflow, &if_overflow, &if_notoverflow);
-
-        assembler.Bind(&if_overflow);
+        Label if_overflow(this), if_notoverflow(this);
+        Branch(overflow, &if_overflow, &if_notoverflow);
+
+        Bind(&if_overflow);
         {
           // The result doesn't fit into Smi range.
-          var_fsub_lhs.Bind(assembler.SmiToFloat64(lhs));
-          var_fsub_rhs.Bind(assembler.SmiToFloat64(rhs));
-          assembler.Goto(&do_fsub);
-        }
-
-        assembler.Bind(&if_notoverflow);
-        var_result.Bind(
-            assembler.BitcastWordToTaggedSigned(assembler.Projection(0, pair)));
-        assembler.Goto(&end);
-      }
-
-      assembler.Bind(&if_rhsisnotsmi);
+          var_fsub_lhs.Bind(SmiToFloat64(lhs));
+          var_fsub_rhs.Bind(SmiToFloat64(rhs));
+          Goto(&do_fsub);
+        }
+
+        Bind(&if_notoverflow);
+        var_result.Bind(BitcastWordToTaggedSigned(Projection(0, pair)));
+        Goto(&end);
+      }
+
+      Bind(&if_rhsisnotsmi);
       {
         // Load the map of the {rhs}.
-        Node* rhs_map = assembler.LoadMap(rhs);
+        Node* rhs_map = LoadMap(rhs);
 
         // Check if {rhs} is a HeapNumber.
-        Label if_rhsisnumber(&assembler),
-            if_rhsisnotnumber(&assembler, Label::kDeferred);
-        assembler.Branch(assembler.IsHeapNumberMap(rhs_map), &if_rhsisnumber,
-                         &if_rhsisnotnumber);
-
-        assembler.Bind(&if_rhsisnumber);
+        Label if_rhsisnumber(this), if_rhsisnotnumber(this, Label::kDeferred);
+        Branch(IsHeapNumberMap(rhs_map), &if_rhsisnumber, &if_rhsisnotnumber);
+
+        Bind(&if_rhsisnumber);
         {
           // Perform a floating point subtraction.
-          var_fsub_lhs.Bind(assembler.SmiToFloat64(lhs));
-          var_fsub_rhs.Bind(assembler.LoadHeapNumberValue(rhs));
-          assembler.Goto(&do_fsub);
-        }
-
-        assembler.Bind(&if_rhsisnotnumber);
+          var_fsub_lhs.Bind(SmiToFloat64(lhs));
+          var_fsub_rhs.Bind(LoadHeapNumberValue(rhs));
+          Goto(&do_fsub);
+        }
+
+        Bind(&if_rhsisnotnumber);
         {
           // Convert the {rhs} to a Number first.
-          Callable callable =
-              CodeFactory::NonNumberToNumber(assembler.isolate());
-          var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-          assembler.Goto(&loop);
-        }
-      }
-    }
-
-    assembler.Bind(&if_lhsisnotsmi);
+          Callable callable = CodeFactory::NonNumberToNumber(isolate());
+          var_rhs.Bind(CallStub(callable, context, rhs));
+          Goto(&loop);
+        }
+      }
+    }
+
+    Bind(&if_lhsisnotsmi);
     {
       // Load the map of the {lhs}.
-      Node* lhs_map = assembler.LoadMap(lhs);
+      Node* lhs_map = LoadMap(lhs);
 
       // Check if the {lhs} is a HeapNumber.
-      Label if_lhsisnumber(&assembler),
-          if_lhsisnotnumber(&assembler, Label::kDeferred);
-      Node* number_map = assembler.HeapNumberMapConstant();
-      assembler.Branch(assembler.WordEqual(lhs_map, number_map),
-                       &if_lhsisnumber, &if_lhsisnotnumber);
-
-      assembler.Bind(&if_lhsisnumber);
+      Label if_lhsisnumber(this), if_lhsisnotnumber(this, Label::kDeferred);
+      Node* number_map = HeapNumberMapConstant();
+      Branch(WordEqual(lhs_map, number_map), &if_lhsisnumber,
+             &if_lhsisnotnumber);
+
+      Bind(&if_lhsisnumber);
       {
         // Check if the {rhs} is a Smi.
-        Label if_rhsissmi(&assembler), if_rhsisnotsmi(&assembler);
-        assembler.Branch(assembler.TaggedIsSmi(rhs), &if_rhsissmi,
-                         &if_rhsisnotsmi);
-
-        assembler.Bind(&if_rhsissmi);
+        Label if_rhsissmi(this), if_rhsisnotsmi(this);
+        Branch(TaggedIsSmi(rhs), &if_rhsissmi, &if_rhsisnotsmi);
+
+        Bind(&if_rhsissmi);
         {
           // Perform a floating point subtraction.
-          var_fsub_lhs.Bind(assembler.LoadHeapNumberValue(lhs));
-          var_fsub_rhs.Bind(assembler.SmiToFloat64(rhs));
-          assembler.Goto(&do_fsub);
-        }
-
-        assembler.Bind(&if_rhsisnotsmi);
+          var_fsub_lhs.Bind(LoadHeapNumberValue(lhs));
+          var_fsub_rhs.Bind(SmiToFloat64(rhs));
+          Goto(&do_fsub);
+        }
+
+        Bind(&if_rhsisnotsmi);
         {
           // Load the map of the {rhs}.
-          Node* rhs_map = assembler.LoadMap(rhs);
+          Node* rhs_map = LoadMap(rhs);
 
           // Check if the {rhs} is a HeapNumber.
-          Label if_rhsisnumber(&assembler),
-              if_rhsisnotnumber(&assembler, Label::kDeferred);
-          assembler.Branch(assembler.WordEqual(rhs_map, number_map),
-                           &if_rhsisnumber, &if_rhsisnotnumber);
-
-          assembler.Bind(&if_rhsisnumber);
+          Label if_rhsisnumber(this), if_rhsisnotnumber(this, Label::kDeferred);
+          Branch(WordEqual(rhs_map, number_map), &if_rhsisnumber,
+                 &if_rhsisnotnumber);
+
+          Bind(&if_rhsisnumber);
           {
             // Perform a floating point subtraction.
-            var_fsub_lhs.Bind(assembler.LoadHeapNumberValue(lhs));
-            var_fsub_rhs.Bind(assembler.LoadHeapNumberValue(rhs));
-            assembler.Goto(&do_fsub);
+            var_fsub_lhs.Bind(LoadHeapNumberValue(lhs));
+            var_fsub_rhs.Bind(LoadHeapNumberValue(rhs));
+            Goto(&do_fsub);
           }
 
-          assembler.Bind(&if_rhsisnotnumber);
+          Bind(&if_rhsisnotnumber);
           {
             // Convert the {rhs} to a Number first.
-            Callable callable =
-                CodeFactory::NonNumberToNumber(assembler.isolate());
-            var_rhs.Bind(assembler.CallStub(callable, context, rhs));
-            assembler.Goto(&loop);
+            Callable callable = CodeFactory::NonNumberToNumber(isolate());
+            var_rhs.Bind(CallStub(callable, context, rhs));
+            Goto(&loop);
           }
         }
       }
 
-      assembler.Bind(&if_lhsisnotnumber);
+      Bind(&if_lhsisnotnumber);
       {
         // Convert the {lhs} to a Number first.
-        Callable callable = CodeFactory::NonNumberToNumber(assembler.isolate());
-        var_lhs.Bind(assembler.CallStub(callable, context, lhs));
-        assembler.Goto(&loop);
-      }
-    }
-  }
-
-  assembler.Bind(&do_fsub);
+        Callable callable = CodeFactory::NonNumberToNumber(isolate());
+        var_lhs.Bind(CallStub(callable, context, lhs));
+        Goto(&loop);
+      }
+    }
+  }
+
+  Bind(&do_fsub);
   {
     Node* lhs_value = var_fsub_lhs.value();
     Node* rhs_value = var_fsub_rhs.value();
-    Node* value = assembler.Float64Sub(lhs_value, rhs_value);
-    var_result.Bind(assembler.AllocateHeapNumberWithValue(value));
-    assembler.Goto(&end);
-  }
-  assembler.Bind(&end);
-  assembler.Return(var_result.value());
-}
-
-void Builtins::Generate_Multiply(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  typedef CodeStubAssembler::Variable Variable;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
+    Node* value = Float64Sub(lhs_value, rhs_value);
+    var_result.Bind(AllocateHeapNumberWithValue(value));
+    Goto(&end);
+  }
+  Bind(&end);
+  Return(var_result.value());
+}
+
+TF_BUILTIN(Multiply, CodeStubAssembler) {
+  Node* left = Parameter(0);
+  Node* right = Parameter(1);
+  Node* context = Parameter(2);
 
   // Shared entry point for floating point multiplication.
-  Label do_fmul(&assembler), return_result(&assembler);
-  Variable var_lhs_float64(&assembler, MachineRepresentation::kFloat64),
-      var_rhs_float64(&assembler, MachineRepresentation::kFloat64);
-
-  Node* number_map = assembler.HeapNumberMapConstant();
+  Label do_fmul(this), return_result(this);
+  Variable var_lhs_float64(this, MachineRepresentation::kFloat64),
+      var_rhs_float64(this, MachineRepresentation::kFloat64);
+
+  Node* number_map = HeapNumberMapConstant();
 
   // We might need to loop one or two times due to ToNumber conversions.
-  Variable var_lhs(&assembler, MachineRepresentation::kTagged),
-      var_rhs(&assembler, MachineRepresentation::kTagged),
-      var_result(&assembler, MachineRepresentation::kTagged);
+  Variable var_lhs(this, MachineRepresentation::kTagged),
+      var_rhs(this, MachineRepresentation::kTagged),
+      var_result(this, MachineRepresentation::kTagged);
   Variable* loop_variables[] = {&var_lhs, &var_rhs};
-  Label loop(&assembler, 2, loop_variables);
+  Label loop(this, 2, loop_variables);
   var_lhs.Bind(left);
   var_rhs.Bind(right);
-  assembler.Goto(&loop);
-  assembler.Bind(&loop);
+  Goto(&loop);
+  Bind(&loop);
   {
     Node* lhs = var_lhs.value();
     Node* rhs = var_rhs.value();
 
-    Label lhs_is_smi(&assembler), lhs_is_not_smi(&assembler);
-    assembler.Branch(assembler.TaggedIsSmi(lhs), &lhs_is_smi, &lhs_is_not_smi);
-
-    assembler.Bind(&lhs_is_smi);
+    Label lhs_is_smi(this), lhs_is_not_smi(this);
+    Branch(TaggedIsSmi(lhs), &lhs_is_smi, &lhs_is_not_smi);
+
+    Bind(&lhs_is_smi);
     {
-      Label rhs_is_smi(&assembler), rhs_is_not_smi(&assembler);
-      assembler.Branch(assembler.TaggedIsSmi(rhs), &rhs_is_smi,
-                       &rhs_is_not_smi);
-
-      assembler.Bind(&rhs_is_smi);
+      Label rhs_is_smi(this), rhs_is_not_smi(this);
+      Branch(TaggedIsSmi(rhs), &rhs_is_smi, &rhs_is_not_smi);
+
+      Bind(&rhs_is_smi);
       {
         // Both {lhs} and {rhs} are Smis. The result is not necessarily a smi,
         // in case of overflow.
-        var_result.Bind(assembler.SmiMul(lhs, rhs));
-        assembler.Goto(&return_result);
-      }
-
-      assembler.Bind(&rhs_is_not_smi);
-      {
-        Node* rhs_map = assembler.LoadMap(rhs);
+        var_result.Bind(SmiMul(lhs, rhs));
+        Goto(&return_result);
+      }
+
+      Bind(&rhs_is_not_smi);
+      {
+        Node* rhs_map = LoadMap(rhs);
 
         // Check if {rhs} is a HeapNumber.
-        Label rhs_is_number(&assembler),
-            rhs_is_not_number(&assembler, Label::kDeferred);
-        assembler.Branch(assembler.WordEqual(rhs_map, number_map),
-                         &rhs_is_number, &rhs_is_not_number);
-
-        assembler.Bind(&rhs_is_number);
+        Label rhs_is_number(this), rhs_is_not_number(this, Label::kDeferred);
+        Branch(WordEqual(rhs_map, number_map), &rhs_is_number,
+               &rhs_is_not_number);
+
+        Bind(&rhs_is_number);
         {
           // Convert {lhs} to a double and multiply it with the value of {rhs}.
-          var_lhs_float64.Bind(assembler.SmiToFloat64(lhs));
-          var_rhs_float64.Bind(assembler.LoadHeapNumberValue(rhs));
-          assembler.Goto(&do_fmul);
-        }
-
-        assembler.Bind(&rhs_is_not_number);
+          var_lhs_float64.Bind(SmiToFloat64(lhs));
+          var_rhs_float64.Bind(LoadHeapNumberValue(rhs));
+          Goto(&do_fmul);
+        }
+
+        Bind(&rhs_is_not_number);
         {
           // Multiplication is commutative, swap {lhs} with {rhs} and loop.
           var_lhs.Bind(rhs);
           var_rhs.Bind(lhs);
-          assembler.Goto(&loop);
-        }
-      }
-    }
-
-    assembler.Bind(&lhs_is_not_smi);
+          Goto(&loop);
+        }
+      }
+    }
+
+    Bind(&lhs_is_not_smi);
     {
-      Node* lhs_map = assembler.LoadMap(lhs);
+      Node* lhs_map = LoadMap(lhs);
 
       // Check if {lhs} is a HeapNumber.
-      Label lhs_is_number(&assembler),
-          lhs_is_not_number(&assembler, Label::kDeferred);
-      assembler.Branch(assembler.WordEqual(lhs_map, number_map), &lhs_is_number,
-                       &lhs_is_not_number);
-
-      assembler.Bind(&lhs_is_number);
+      Label lhs_is_number(this), lhs_is_not_number(this, Label::kDeferred);
+      Branch(WordEqual(lhs_map, number_map), &lhs_is_number,
+             &lhs_is_not_number);
+
+      Bind(&lhs_is_number);
       {
         // Check if {rhs} is a Smi.
-        Label rhs_is_smi(&assembler), rhs_is_not_smi(&assembler);
-        assembler.Branch(assembler.TaggedIsSmi(rhs), &rhs_is_smi,
-                         &rhs_is_not_smi);
-
-        assembler.Bind(&rhs_is_smi);
+        Label rhs_is_smi(this), rhs_is_not_smi(this);
+        Branch(TaggedIsSmi(rhs), &rhs_is_smi, &rhs_is_not_smi);
+
+        Bind(&rhs_is_smi);
         {
           // Convert {rhs} to a double and multiply it with the value of {lhs}.
-          var_lhs_float64.Bind(assembler.LoadHeapNumberValue(lhs));
-          var_rhs_float64.Bind(assembler.SmiToFloat64(rhs));
-          assembler.Goto(&do_fmul);
-        }
-
-        assembler.Bind(&rhs_is_not_smi);
-        {
-          Node* rhs_map = assembler.LoadMap(rhs);
+          var_lhs_float64.Bind(LoadHeapNumberValue(lhs));
+          var_rhs_float64.Bind(SmiToFloat64(rhs));
+          Goto(&do_fmul);
+        }
+
+        Bind(&rhs_is_not_smi);
+        {
+          Node* rhs_map = LoadMap(rhs);
 
           // Check if {rhs} is a HeapNumber.
-          Label rhs_is_number(&assembler),
-              rhs_is_not_number(&assembler, Label::kDeferred);
-          assembler.Branch(assembler.WordEqual(rhs_map, number_map),
-                           &rhs_is_number, &rhs_is_not_number);
-
-          assembler.Bind(&rhs_is_number);
+          Label rhs_is_number(this), rhs_is_not_number(this, Label::kDeferred);
+          Branch(WordEqual(rhs_map, number_map), &rhs_is_number,
+                 &rhs_is_not_number);
+
+          Bind(&rhs_is_number);
           {
             // Both {lhs} and {rhs} are HeapNumbers. Load their values and
             // multiply them.
-            var_lhs_float64.Bind(assembler.LoadHeapNumberValue(lhs));
-            var_rhs_float64.Bind(assembler.LoadHeapNumberValue(rhs));
-            assembler.Goto(&do_fmul);
+            var_lhs_float64.Bind(LoadHeapNumberValue(lhs));
+            var_rhs_float64.Bind(LoadHeapNumberValue(rhs));
+            Goto(&do_fmul);
           }
 
-          assembler.Bind(&rhs_is_not_number);
+          Bind(&rhs_is_not_number);
           {
             // Multiplication is commutative, swap {lhs} with {rhs} and loop.
             var_lhs.Bind(rhs);
             var_rhs.Bind(lhs);
-            assembler.Goto(&loop);
+            Goto(&loop);
           }
         }
       }
 
-      assembler.Bind(&lhs_is_not_number);
+      Bind(&lhs_is_not_number);
       {
         // Convert {lhs} to a Number and loop.
-        Callable callable = CodeFactory::NonNumberToNumber(assembler.isolate());
-        var_lhs.Bind(assembler.CallStub(callable, context, lhs));
-        assembler.Goto(&loop);
-      }
-    }
-  }
-
-  assembler.Bind(&do_fmul);
-  {
-    Node* value =
-        assembler.Float64Mul(var_lhs_float64.value(), var_rhs_float64.value());
-    Node* result = assembler.AllocateHeapNumberWithValue(value);
+        Callable callable = CodeFactory::NonNumberToNumber(isolate());
+        var_lhs.Bind(CallStub(callable, context, lhs));
+        Goto(&loop);
+      }
+    }
+  }
+
+  Bind(&do_fmul);
+  {
+    Node* value = Float64Mul(var_lhs_float64.value(), var_rhs_float64.value());
+    Node* result = AllocateHeapNumberWithValue(value);
     var_result.Bind(result);
-    assembler.Goto(&return_result);
-  }
-
-  assembler.Bind(&return_result);
-  assembler.Return(var_result.value());
-}
-
-void Builtins::Generate_Divide(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  typedef CodeStubAssembler::Variable Variable;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
+    Goto(&return_result);
+  }
+
+  Bind(&return_result);
+  Return(var_result.value());
+}
+
+TF_BUILTIN(Divide, CodeStubAssembler) {
+  Node* left = Parameter(0);
+  Node* right = Parameter(1);
+  Node* context = Parameter(2);
 
   // Shared entry point for floating point division.
-  Label do_fdiv(&assembler), end(&assembler);
-  Variable var_dividend_float64(&assembler, MachineRepresentation::kFloat64),
-      var_divisor_float64(&assembler, MachineRepresentation::kFloat64);
-
-  Node* number_map = assembler.HeapNumberMapConstant();
+  Label do_fdiv(this), end(this);
+  Variable var_dividend_float64(this, MachineRepresentation::kFloat64),
+      var_divisor_float64(this, MachineRepresentation::kFloat64);
+
+  Node* number_map = HeapNumberMapConstant();
 
   // We might need to loop one or two times due to ToNumber conversions.
-  Variable var_dividend(&assembler, MachineRepresentation::kTagged),
-      var_divisor(&assembler, MachineRepresentation::kTagged),
-      var_result(&assembler, MachineRepresentation::kTagged);
+  Variable var_dividend(this, MachineRepresentation::kTagged),
+      var_divisor(this, MachineRepresentation::kTagged),
+      var_result(this, MachineRepresentation::kTagged);
   Variable* loop_variables[] = {&var_dividend, &var_divisor};
-  Label loop(&assembler, 2, loop_variables);
+  Label loop(this, 2, loop_variables);
   var_dividend.Bind(left);
   var_divisor.Bind(right);
-  assembler.Goto(&loop);
-  assembler.Bind(&loop);
+  Goto(&loop);
+  Bind(&loop);
   {
     Node* dividend = var_dividend.value();
     Node* divisor = var_divisor.value();
 
-    Label dividend_is_smi(&assembler), dividend_is_not_smi(&assembler);
-    assembler.Branch(assembler.TaggedIsSmi(dividend), &dividend_is_smi,
-                     &dividend_is_not_smi);
-
-    assembler.Bind(&dividend_is_smi);
+    Label dividend_is_smi(this), dividend_is_not_smi(this);
+    Branch(TaggedIsSmi(dividend), &dividend_is_smi, &dividend_is_not_smi);
+
+    Bind(&dividend_is_smi);
     {
-      Label divisor_is_smi(&assembler), divisor_is_not_smi(&assembler);
-      assembler.Branch(assembler.TaggedIsSmi(divisor), &divisor_is_smi,
-                       &divisor_is_not_smi);
-
-      assembler.Bind(&divisor_is_smi);
-      {
-        Label bailout(&assembler);
+      Label divisor_is_smi(this), divisor_is_not_smi(this);
+      Branch(TaggedIsSmi(divisor), &divisor_is_smi, &divisor_is_not_smi);
+
+      Bind(&divisor_is_smi);
+      {
+        Label bailout(this);
 
         // Do floating point division if {divisor} is zero.
-        assembler.GotoIf(
-            assembler.WordEqual(divisor, assembler.IntPtrConstant(0)),
-            &bailout);
+        GotoIf(WordEqual(divisor, IntPtrConstant(0)), &bailout);
 
         // Do floating point division {dividend} is zero and {divisor} is
         // negative.
-        Label dividend_is_zero(&assembler), dividend_is_not_zero(&assembler);
-        assembler.Branch(
-            assembler.WordEqual(dividend, assembler.IntPtrConstant(0)),
-            &dividend_is_zero, &dividend_is_not_zero);
-
-        assembler.Bind(&dividend_is_zero);
-        {
-          assembler.GotoIf(
-              assembler.IntPtrLessThan(divisor, assembler.IntPtrConstant(0)),
-              &bailout);
-          assembler.Goto(&dividend_is_not_zero);
-        }
-        assembler.Bind(&dividend_is_not_zero);
-
-        Node* untagged_divisor = assembler.SmiUntag(divisor);
-        Node* untagged_dividend = assembler.SmiUntag(dividend);
+        Label dividend_is_zero(this), dividend_is_not_zero(this);
+        Branch(WordEqual(dividend, IntPtrConstant(0)), &dividend_is_zero,
+               &dividend_is_not_zero);
+
+        Bind(&dividend_is_zero);
+        {
+          GotoIf(IntPtrLessThan(divisor, IntPtrConstant(0)), &bailout);
+          Goto(&dividend_is_not_zero);
+        }
+        Bind(&dividend_is_not_zero);
+
+        Node* untagged_divisor = SmiUntag(divisor);
+        Node* untagged_dividend = SmiUntag(dividend);
 
         // Do floating point division if {dividend} is kMinInt (or kMinInt - 1
         // if the Smi size is 31) and {divisor} is -1.
-        Label divisor_is_minus_one(&assembler),
-            divisor_is_not_minus_one(&assembler);
-        assembler.Branch(assembler.Word32Equal(untagged_divisor,
-                                               assembler.Int32Constant(-1)),
-                         &divisor_is_minus_one, &divisor_is_not_minus_one);
-
-        assembler.Bind(&divisor_is_minus_one);
-        {
-          assembler.GotoIf(
-              assembler.Word32Equal(
-                  untagged_dividend,
-                  assembler.Int32Constant(
-                      kSmiValueSize == 32 ? kMinInt : (kMinInt >> 1))),
+        Label divisor_is_minus_one(this), divisor_is_not_minus_one(this);
+        Branch(Word32Equal(untagged_divisor, Int32Constant(-1)),
+               &divisor_is_minus_one, &divisor_is_not_minus_one);
+
+        Bind(&divisor_is_minus_one);
+        {
+          GotoIf(
+              Word32Equal(untagged_dividend,
+                          Int32Constant(kSmiValueSize == 32 ? kMinInt
+                                                            : (kMinInt >> 1))),
               &bailout);
-          assembler.Goto(&divisor_is_not_minus_one);
-        }
-        assembler.Bind(&divisor_is_not_minus_one);
+          Goto(&divisor_is_not_minus_one);
+        }
+        Bind(&divisor_is_not_minus_one);
 
         // TODO(epertoso): consider adding a machine instruction that returns
         // both the result and the remainder.
-        Node* untagged_result =
-            assembler.Int32Div(untagged_dividend, untagged_divisor);
-        Node* truncated = assembler.Int32Mul(untagged_result, untagged_divisor);
+        Node* untagged_result = Int32Div(untagged_dividend, untagged_divisor);
+        Node* truncated = Int32Mul(untagged_result, untagged_divisor);
         // Do floating point division if the remainder is not 0.
-        assembler.GotoIf(assembler.Word32NotEqual(untagged_dividend, truncated),
-                         &bailout);
-        var_result.Bind(assembler.SmiTag(untagged_result));
-        assembler.Goto(&end);
+        GotoIf(Word32NotEqual(untagged_dividend, truncated), &bailout);
+        var_result.Bind(SmiTag(untagged_result));
+        Goto(&end);
 
         // Bailout: convert {dividend} and {divisor} to double and do double
         // division.
-        assembler.Bind(&bailout);
-        {
-          var_dividend_float64.Bind(assembler.SmiToFloat64(dividend));
-          var_divisor_float64.Bind(assembler.SmiToFloat64(divisor));
-          assembler.Goto(&do_fdiv);
-        }
-      }
-
-      assembler.Bind(&divisor_is_not_smi);
-      {
-        Node* divisor_map = assembler.LoadMap(divisor);
+        Bind(&bailout);
+        {
+          var_dividend_float64.Bind(SmiToFloat64(dividend));
+          var_divisor_float64.Bind(SmiToFloat64(divisor));
+          Goto(&do_fdiv);
+        }
+      }
+
+      Bind(&divisor_is_not_smi);
+      {
+        Node* divisor_map = LoadMap(divisor);
 
         // Check if {divisor} is a HeapNumber.
-        Label divisor_is_number(&assembler),
-            divisor_is_not_number(&assembler, Label::kDeferred);
-        assembler.Branch(assembler.WordEqual(divisor_map, number_map),
-                         &divisor_is_number, &divisor_is_not_number);
-
-        assembler.Bind(&divisor_is_number);
+        Label divisor_is_number(this),
+            divisor_is_not_number(this, Label::kDeferred);
+        Branch(WordEqual(divisor_map, number_map), &divisor_is_number,
+               &divisor_is_not_number);
+
+        Bind(&divisor_is_number);
         {
           // Convert {dividend} to a double and divide it with the value of
           // {divisor}.
-          var_dividend_float64.Bind(assembler.SmiToFloat64(dividend));
-          var_divisor_float64.Bind(assembler.LoadHeapNumberValue(divisor));
-          assembler.Goto(&do_fdiv);
-        }
-
-        assembler.Bind(&divisor_is_not_number);
+          var_dividend_float64.Bind(SmiToFloat64(dividend));
+          var_divisor_float64.Bind(LoadHeapNumberValue(divisor));
+          Goto(&do_fdiv);
+        }
+
+        Bind(&divisor_is_not_number);
         {
           // Convert {divisor} to a number and loop.
-          Callable callable =
-              CodeFactory::NonNumberToNumber(assembler.isolate());
-          var_divisor.Bind(assembler.CallStub(callable, context, divisor));
-          assembler.Goto(&loop);
-        }
-      }
-    }
-
-    assembler.Bind(&dividend_is_not_smi);
+          Callable callable = CodeFactory::NonNumberToNumber(isolate());
+          var_divisor.Bind(CallStub(callable, context, divisor));
+          Goto(&loop);
+        }
+      }
+    }
+
+    Bind(&dividend_is_not_smi);
     {
-      Node* dividend_map = assembler.LoadMap(dividend);
+      Node* dividend_map = LoadMap(dividend);
 
       // Check if {dividend} is a HeapNumber.
-      Label dividend_is_number(&assembler),
-          dividend_is_not_number(&assembler, Label::kDeferred);
-      assembler.Branch(assembler.WordEqual(dividend_map, number_map),
-                       &dividend_is_number, &dividend_is_not_number);
-
-      assembler.Bind(&dividend_is_number);
+      Label dividend_is_number(this),
+          dividend_is_not_number(this, Label::kDeferred);
+      Branch(WordEqual(dividend_map, number_map), &dividend_is_number,
+             &dividend_is_not_number);
+
+      Bind(&dividend_is_number);
       {
         // Check if {divisor} is a Smi.
-        Label divisor_is_smi(&assembler), divisor_is_not_smi(&assembler);
-        assembler.Branch(assembler.TaggedIsSmi(divisor), &divisor_is_smi,
-                         &divisor_is_not_smi);
-
-        assembler.Bind(&divisor_is_smi);
+        Label divisor_is_smi(this), divisor_is_not_smi(this);
+        Branch(TaggedIsSmi(divisor), &divisor_is_smi, &divisor_is_not_smi);
+
+        Bind(&divisor_is_smi);
         {
           // Convert {divisor} to a double and use it for a floating point
           // division.
-          var_dividend_float64.Bind(assembler.LoadHeapNumberValue(dividend));
-          var_divisor_float64.Bind(assembler.SmiToFloat64(divisor));
-          assembler.Goto(&do_fdiv);
-        }
-
-        assembler.Bind(&divisor_is_not_smi);
-        {
-          Node* divisor_map = assembler.LoadMap(divisor);
+          var_dividend_float64.Bind(LoadHeapNumberValue(dividend));
+          var_divisor_float64.Bind(SmiToFloat64(divisor));
+          Goto(&do_fdiv);
+        }
+
+        Bind(&divisor_is_not_smi);
+        {
+          Node* divisor_map = LoadMap(divisor);
 
           // Check if {divisor} is a HeapNumber.
-          Label divisor_is_number(&assembler),
-              divisor_is_not_number(&assembler, Label::kDeferred);
-          assembler.Branch(assembler.WordEqual(divisor_map, number_map),
-                           &divisor_is_number, &divisor_is_not_number);
-
-          assembler.Bind(&divisor_is_number);
+          Label divisor_is_number(this),
+              divisor_is_not_number(this, Label::kDeferred);
+          Branch(WordEqual(divisor_map, number_map), &divisor_is_number,
+                 &divisor_is_not_number);
+
+          Bind(&divisor_is_number);
           {
             // Both {dividend} and {divisor} are HeapNumbers. Load their values
             // and divide them.
-            var_dividend_float64.Bind(assembler.LoadHeapNumberValue(dividend));
-            var_divisor_float64.Bind(assembler.LoadHeapNumberValue(divisor));
-            assembler.Goto(&do_fdiv);
+            var_dividend_float64.Bind(LoadHeapNumberValue(dividend));
+            var_divisor_float64.Bind(LoadHeapNumberValue(divisor));
+            Goto(&do_fdiv);
           }
 
-          assembler.Bind(&divisor_is_not_number);
+          Bind(&divisor_is_not_number);
           {
             // Convert {divisor} to a number and loop.
-            Callable callable =
-                CodeFactory::NonNumberToNumber(assembler.isolate());
-            var_divisor.Bind(assembler.CallStub(callable, context, divisor));
-            assembler.Goto(&loop);
+            Callable callable = CodeFactory::NonNumberToNumber(isolate());
+            var_divisor.Bind(CallStub(callable, context, divisor));
+            Goto(&loop);
           }
         }
       }
 
-      assembler.Bind(&dividend_is_not_number);
+      Bind(&dividend_is_not_number);
       {
         // Convert {dividend} to a Number and loop.
-        Callable callable = CodeFactory::NonNumberToNumber(assembler.isolate());
-        var_dividend.Bind(assembler.CallStub(callable, context, dividend));
-        assembler.Goto(&loop);
-      }
-    }
-  }
-
-  assembler.Bind(&do_fdiv);
-  {
-    Node* value = assembler.Float64Div(var_dividend_float64.value(),
-                                       var_divisor_float64.value());
-    var_result.Bind(assembler.AllocateHeapNumberWithValue(value));
-    assembler.Goto(&end);
-  }
-  assembler.Bind(&end);
-  assembler.Return(var_result.value());
-}
-
-void Builtins::Generate_Modulus(compiler::CodeAssemblerState* state) {
-  typedef CodeStubAssembler::Label Label;
-  typedef compiler::Node Node;
-  typedef CodeStubAssembler::Variable Variable;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Variable var_result(&assembler, MachineRepresentation::kTagged);
-  Label return_result(&assembler, &var_result);
+        Callable callable = CodeFactory::NonNumberToNumber(isolate());
+        var_dividend.Bind(CallStub(callable, context, dividend));
+        Goto(&loop);
+      }
+    }
+  }
+
+  Bind(&do_fdiv);
+  {
+    Node* value =
+        Float64Div(var_dividend_float64.value(), var_divisor_float64.value());
+    var_result.Bind(AllocateHeapNumberWithValue(value));
+    Goto(&end);
+  }
+  Bind(&end);
+  Return(var_result.value());
+}
+
+TF_BUILTIN(Modulus, CodeStubAssembler) {
+  Node* left = Parameter(0);
+  Node* right = Parameter(1);
+  Node* context = Parameter(2);
+
+  Variable var_result(this, MachineRepresentation::kTagged);
+  Label return_result(this, &var_result);
 
   // Shared entry point for floating point modulus.
-  Label do_fmod(&assembler);
-  Variable var_dividend_float64(&assembler, MachineRepresentation::kFloat64),
-      var_divisor_float64(&assembler, MachineRepresentation::kFloat64);
-
-  Node* number_map = assembler.HeapNumberMapConstant();
+  Label do_fmod(this);
+  Variable var_dividend_float64(this, MachineRepresentation::kFloat64),
+      var_divisor_float64(this, MachineRepresentation::kFloat64);
+
+  Node* number_map = HeapNumberMapConstant();
 
   // We might need to loop one or two times due to ToNumber conversions.
-  Variable var_dividend(&assembler, MachineRepresentation::kTagged),
-      var_divisor(&assembler, MachineRepresentation::kTagged);
+  Variable var_dividend(this, MachineRepresentation::kTagged),
+      var_divisor(this, MachineRepresentation::kTagged);
   Variable* loop_variables[] = {&var_dividend, &var_divisor};
-  Label loop(&assembler, 2, loop_variables);
+  Label loop(this, 2, loop_variables);
   var_dividend.Bind(left);
   var_divisor.Bind(right);
-  assembler.Goto(&loop);
-  assembler.Bind(&loop);
+  Goto(&loop);
+  Bind(&loop);
   {
     Node* dividend = var_dividend.value();
     Node* divisor = var_divisor.value();
 
-    Label dividend_is_smi(&assembler), dividend_is_not_smi(&assembler);
-    assembler.Branch(assembler.TaggedIsSmi(dividend), &dividend_is_smi,
-                     &dividend_is_not_smi);
-
-    assembler.Bind(&dividend_is_smi);
+    Label dividend_is_smi(this), dividend_is_not_smi(this);
+    Branch(TaggedIsSmi(dividend), &dividend_is_smi, &dividend_is_not_smi);
+
+    Bind(&dividend_is_smi);
     {
-      Label dividend_is_not_zero(&assembler);
-      Label divisor_is_smi(&assembler), divisor_is_not_smi(&assembler);
-      assembler.Branch(assembler.TaggedIsSmi(divisor), &divisor_is_smi,
-                       &divisor_is_not_smi);
-
-      assembler.Bind(&divisor_is_smi);
+      Label dividend_is_not_zero(this);
+      Label divisor_is_smi(this), divisor_is_not_smi(this);
+      Branch(TaggedIsSmi(divisor), &divisor_is_smi, &divisor_is_not_smi);
+
+      Bind(&divisor_is_smi);
       {
         // Compute the modulus of two Smis.
-        var_result.Bind(assembler.SmiMod(dividend, divisor));
-        assembler.Goto(&return_result);
-      }
-
-      assembler.Bind(&divisor_is_not_smi);
-      {
-        Node* divisor_map = assembler.LoadMap(divisor);
+        var_result.Bind(SmiMod(dividend, divisor));
+        Goto(&return_result);
+      }
+
+      Bind(&divisor_is_not_smi);
+      {
+        Node* divisor_map = LoadMap(divisor);
 
         // Check if {divisor} is a HeapNumber.
-        Label divisor_is_number(&assembler),
-            divisor_is_not_number(&assembler, Label::kDeferred);
-        assembler.Branch(assembler.WordEqual(divisor_map, number_map),
-                         &divisor_is_number, &divisor_is_not_number);
-
-        assembler.Bind(&divisor_is_number);
+        Label divisor_is_number(this),
+            divisor_is_not_number(this, Label::kDeferred);
+        Branch(WordEqual(divisor_map, number_map), &divisor_is_number,
+               &divisor_is_not_number);
+
+        Bind(&divisor_is_number);
         {
           // Convert {dividend} to a double and compute its modulus with the
           // value of {dividend}.
-          var_dividend_float64.Bind(assembler.SmiToFloat64(dividend));
-          var_divisor_float64.Bind(assembler.LoadHeapNumberValue(divisor));
-          assembler.Goto(&do_fmod);
-        }
-
-        assembler.Bind(&divisor_is_not_number);
+          var_dividend_float64.Bind(SmiToFloat64(dividend));
+          var_divisor_float64.Bind(LoadHeapNumberValue(divisor));
+          Goto(&do_fmod);
+        }
+
+        Bind(&divisor_is_not_number);
         {
           // Convert {divisor} to a number and loop.
-          Callable callable =
-              CodeFactory::NonNumberToNumber(assembler.isolate());
-          var_divisor.Bind(assembler.CallStub(callable, context, divisor));
-          assembler.Goto(&loop);
-        }
-      }
-    }
-
-    assembler.Bind(&dividend_is_not_smi);
+          Callable callable = CodeFactory::NonNumberToNumber(isolate());
+          var_divisor.Bind(CallStub(callable, context, divisor));
+          Goto(&loop);
+        }
+      }
+    }
+
+    Bind(&dividend_is_not_smi);
     {
-      Node* dividend_map = assembler.LoadMap(dividend);
+      Node* dividend_map = LoadMap(dividend);
 
       // Check if {dividend} is a HeapNumber.
-      Label dividend_is_number(&assembler),
-          dividend_is_not_number(&assembler, Label::kDeferred);
-      assembler.Branch(assembler.WordEqual(dividend_map, number_map),
-                       &dividend_is_number, &dividend_is_not_number);
-
-      assembler.Bind(&dividend_is_number);
+      Label dividend_is_number(this),
+          dividend_is_not_number(this, Label::kDeferred);
+      Branch(WordEqual(dividend_map, number_map), &dividend_is_number,
+             &dividend_is_not_number);
+
+      Bind(&dividend_is_number);
       {
         // Check if {divisor} is a Smi.
-        Label divisor_is_smi(&assembler), divisor_is_not_smi(&assembler);
-        assembler.Branch(assembler.TaggedIsSmi(divisor), &divisor_is_smi,
-                         &divisor_is_not_smi);
-
-        assembler.Bind(&divisor_is_smi);
+        Label divisor_is_smi(this), divisor_is_not_smi(this);
+        Branch(TaggedIsSmi(divisor), &divisor_is_smi, &divisor_is_not_smi);
+
+        Bind(&divisor_is_smi);
         {
           // Convert {divisor} to a double and compute {dividend}'s modulus with
           // it.
-          var_dividend_float64.Bind(assembler.LoadHeapNumberValue(dividend));
-          var_divisor_float64.Bind(assembler.SmiToFloat64(divisor));
-          assembler.Goto(&do_fmod);
-        }
-
-        assembler.Bind(&divisor_is_not_smi);
-        {
-          Node* divisor_map = assembler.LoadMap(divisor);
+          var_dividend_float64.Bind(LoadHeapNumberValue(dividend));
+          var_divisor_float64.Bind(SmiToFloat64(divisor));
+          Goto(&do_fmod);
+        }
+
+        Bind(&divisor_is_not_smi);
+        {
+          Node* divisor_map = LoadMap(divisor);
 
           // Check if {divisor} is a HeapNumber.
-          Label divisor_is_number(&assembler),
-              divisor_is_not_number(&assembler, Label::kDeferred);
-          assembler.Branch(assembler.WordEqual(divisor_map, number_map),
-                           &divisor_is_number, &divisor_is_not_number);
-
-          assembler.Bind(&divisor_is_number);
+          Label divisor_is_number(this),
+              divisor_is_not_number(this, Label::kDeferred);
+          Branch(WordEqual(divisor_map, number_map), &divisor_is_number,
+                 &divisor_is_not_number);
+
+          Bind(&divisor_is_number);
           {
             // Both {dividend} and {divisor} are HeapNumbers. Load their values
             // and compute their modulus.
-            var_dividend_float64.Bind(assembler.LoadHeapNumberValue(dividend));
-            var_divisor_float64.Bind(assembler.LoadHeapNumberValue(divisor));
-            assembler.Goto(&do_fmod);
+            var_dividend_float64.Bind(LoadHeapNumberValue(dividend));
+            var_divisor_float64.Bind(LoadHeapNumberValue(divisor));
+            Goto(&do_fmod);
           }
 
-          assembler.Bind(&divisor_is_not_number);
+          Bind(&divisor_is_not_number);
           {
             // Convert {divisor} to a number and loop.
-            Callable callable =
-                CodeFactory::NonNumberToNumber(assembler.isolate());
-            var_divisor.Bind(assembler.CallStub(callable, context, divisor));
-            assembler.Goto(&loop);
+            Callable callable = CodeFactory::NonNumberToNumber(isolate());
+            var_divisor.Bind(CallStub(callable, context, divisor));
+            Goto(&loop);
           }
         }
       }
 
-      assembler.Bind(&dividend_is_not_number);
+      Bind(&dividend_is_not_number);
       {
         // Convert {dividend} to a Number and loop.
-        Callable callable = CodeFactory::NonNumberToNumber(assembler.isolate());
-        var_dividend.Bind(assembler.CallStub(callable, context, dividend));
-        assembler.Goto(&loop);
-      }
-    }
-  }
-
-  assembler.Bind(&do_fmod);
-  {
-    Node* value = assembler.Float64Mod(var_dividend_float64.value(),
-                                       var_divisor_float64.value());
-    var_result.Bind(assembler.AllocateHeapNumberWithValue(value));
-    assembler.Goto(&return_result);
-  }
-
-  assembler.Bind(&return_result);
-  assembler.Return(var_result.value());
-}
-
-void Builtins::Generate_ShiftLeft(compiler::CodeAssemblerState* state) {
-  using compiler::Node;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Node* lhs_value = assembler.TruncateTaggedToWord32(context, left);
-  Node* rhs_value = assembler.TruncateTaggedToWord32(context, right);
-  Node* shift_count =
-      assembler.Word32And(rhs_value, assembler.Int32Constant(0x1f));
-  Node* value = assembler.Word32Shl(lhs_value, shift_count);
-  Node* result = assembler.ChangeInt32ToTagged(value);
-  assembler.Return(result);
-}
-
-void Builtins::Generate_ShiftRight(compiler::CodeAssemblerState* state) {
-  using compiler::Node;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Node* lhs_value = assembler.TruncateTaggedToWord32(context, left);
-  Node* rhs_value = assembler.TruncateTaggedToWord32(context, right);
-  Node* shift_count =
-      assembler.Word32And(rhs_value, assembler.Int32Constant(0x1f));
-  Node* value = assembler.Word32Sar(lhs_value, shift_count);
-  Node* result = assembler.ChangeInt32ToTagged(value);
-  assembler.Return(result);
-}
-
-void Builtins::Generate_ShiftRightLogical(compiler::CodeAssemblerState* state) {
-  using compiler::Node;
-  CodeStubAssembler assembler(state);
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Node* lhs_value = assembler.TruncateTaggedToWord32(context, left);
-  Node* rhs_value = assembler.TruncateTaggedToWord32(context, right);
-  Node* shift_count =
-      assembler.Word32And(rhs_value, assembler.Int32Constant(0x1f));
-  Node* value = assembler.Word32Shr(lhs_value, shift_count);
-  Node* result = assembler.ChangeUint32ToTagged(value);
-  assembler.Return(result);
-}
-
-void Builtins::Generate_BitwiseAnd(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  using compiler::Node;
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Node* lhs_value = assembler.TruncateTaggedToWord32(context, left);
-  Node* rhs_value = assembler.TruncateTaggedToWord32(context, right);
-  Node* value = assembler.Word32And(lhs_value, rhs_value);
-  Node* result = assembler.ChangeInt32ToTagged(value);
-  assembler.Return(result);
-}
-
-void Builtins::Generate_BitwiseOr(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  using compiler::Node;
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Node* lhs_value = assembler.TruncateTaggedToWord32(context, left);
-  Node* rhs_value = assembler.TruncateTaggedToWord32(context, right);
-  Node* value = assembler.Word32Or(lhs_value, rhs_value);
-  Node* result = assembler.ChangeInt32ToTagged(value);
-  assembler.Return(result);
-}
-
-void Builtins::Generate_BitwiseXor(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  using compiler::Node;
-
-  Node* left = assembler.Parameter(0);
-  Node* right = assembler.Parameter(1);
-  Node* context = assembler.Parameter(2);
-
-  Node* lhs_value = assembler.TruncateTaggedToWord32(context, left);
-  Node* rhs_value = assembler.TruncateTaggedToWord32(context, right);
-  Node* value = assembler.Word32Xor(lhs_value, rhs_value);
-  Node* result = assembler.ChangeInt32ToTagged(value);
-  assembler.Return(result);
-}
-
-void Builtins::Generate_LessThan(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(assembler.RelationalComparison(CodeStubAssembler::kLessThan,
-                                                  lhs, rhs, context));
-}
-
-void Builtins::Generate_LessThanOrEqual(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(assembler.RelationalComparison(
-      CodeStubAssembler::kLessThanOrEqual, lhs, rhs, context));
-}
-
-void Builtins::Generate_GreaterThan(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(assembler.RelationalComparison(
-      CodeStubAssembler::kGreaterThan, lhs, rhs, context));
-}
-
-void Builtins::Generate_GreaterThanOrEqual(
-    compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(assembler.RelationalComparison(
-      CodeStubAssembler::kGreaterThanOrEqual, lhs, rhs, context));
-}
-
-void Builtins::Generate_Equal(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(
-      assembler.Equal(CodeStubAssembler::kDontNegateResult, lhs, rhs, context));
-}
-
-void Builtins::Generate_NotEqual(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(
-      assembler.Equal(CodeStubAssembler::kNegateResult, lhs, rhs, context));
-}
-
-void Builtins::Generate_StrictEqual(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(assembler.StrictEqual(CodeStubAssembler::kDontNegateResult,
-                                         lhs, rhs, context));
-}
-
-void Builtins::Generate_StrictNotEqual(compiler::CodeAssemblerState* state) {
-  CodeStubAssembler assembler(state);
-  compiler::Node* lhs = assembler.Parameter(0);
-  compiler::Node* rhs = assembler.Parameter(1);
-  compiler::Node* context = assembler.Parameter(2);
-
-  assembler.Return(assembler.StrictEqual(CodeStubAssembler::kNegateResult, lhs,
-                                         rhs, context));
+        Callable callable = CodeFactory::NonNumberToNumber(isolate());
+        var_dividend.Bind(CallStub(callable, context, dividend));
+        Goto(&loop);
+      }
+    }
+  }
+
+  Bind(&do_fmod);
+  {
+    Node* value =
+        Float64Mod(var_dividend_float64.value(), var_divisor_float64.value());
+    var_result.Bind(AllocateHeapNumberWithValue(value));
+    Goto(&return_result);
+  }
+
+  Bind(&return_result);
+  Return(var_result.value());
+}
+
+TF_BUILTIN(ShiftLeft, NumberBuiltinsAssembler) {
+  BitwiseShiftOp([this](Node* lhs, Node* shift_count) {
+    return Word32Shl(lhs, shift_count);
+  });
+}
+
+TF_BUILTIN(ShiftRight, NumberBuiltinsAssembler) {
+  BitwiseShiftOp([this](Node* lhs, Node* shift_count) {
+    return Word32Sar(lhs, shift_count);
+  });
+}
+
+TF_BUILTIN(ShiftRightLogical, NumberBuiltinsAssembler) {
+  BitwiseShiftOp<kUnsigned>([this](Node* lhs, Node* shift_count) {
+    return Word32Shr(lhs, shift_count);
+  });
+}
+
+TF_BUILTIN(BitwiseAnd, NumberBuiltinsAssembler) {
+  BitwiseOp([this](Node* lhs, Node* rhs) { return Word32And(lhs, rhs); });
+}
+
+TF_BUILTIN(BitwiseOr, NumberBuiltinsAssembler) {
+  BitwiseOp([this](Node* lhs, Node* rhs) { return Word32Or(lhs, rhs); });
+}
+
+TF_BUILTIN(BitwiseXor, NumberBuiltinsAssembler) {
+  BitwiseOp([this](Node* lhs, Node* rhs) { return Word32Xor(lhs, rhs); });
+}
+
+TF_BUILTIN(LessThan, NumberBuiltinsAssembler) {
+  RelationalComparisonBuiltin(kLessThan);
+}
+
+TF_BUILTIN(LessThanOrEqual, NumberBuiltinsAssembler) {
+  RelationalComparisonBuiltin(kLessThanOrEqual);
+}
+
+TF_BUILTIN(GreaterThan, NumberBuiltinsAssembler) {
+  RelationalComparisonBuiltin(kGreaterThan);
+}
+
+TF_BUILTIN(GreaterThanOrEqual, NumberBuiltinsAssembler) {
+  RelationalComparisonBuiltin(kGreaterThanOrEqual);
+}
+
+TF_BUILTIN(Equal, CodeStubAssembler) {
+  Node* lhs = Parameter(0);
+  Node* rhs = Parameter(1);
+  Node* context = Parameter(2);
+
+  Return(Equal(kDontNegateResult, lhs, rhs, context));
+}
+
+TF_BUILTIN(NotEqual, CodeStubAssembler) {
+  Node* lhs = Parameter(0);
+  Node* rhs = Parameter(1);
+  Node* context = Parameter(2);
+
+  Return(Equal(kNegateResult, lhs, rhs, context));
+}
+
+TF_BUILTIN(StrictEqual, CodeStubAssembler) {
+  Node* lhs = Parameter(0);
+  Node* rhs = Parameter(1);
+  Node* context = Parameter(2);
+
+  Return(StrictEqual(kDontNegateResult, lhs, rhs, context));
+}
+
+TF_BUILTIN(StrictNotEqual, CodeStubAssembler) {
+  Node* lhs = Parameter(0);
+  Node* rhs = Parameter(1);
+  Node* context = Parameter(2);
+
+  Return(StrictEqual(kNegateResult, lhs, rhs, context));
 }
 
 }  // namespace internal
 }  // namespace v8