[turbofan] JSGenericLowering mostly uses builtins instead of code stubs now

src/builtins/builtins-number.cc

Index: src/builtins/builtins-number.cc
diff --git a/src/builtins/builtins-number.cc b/src/builtins/builtins-number.cc
index 17628445d116930c04e439314e097d91f84c8d93..6b894d3e47e3269220f09a48619f1d6e99cc10ab 100644
--- a/src/builtins/builtins-number.cc
+++ b/src/builtins/builtins-number.cc
@@ -2,8 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "src/builtins/builtins.h"
 #include "src/builtins/builtins-utils.h"
+#include "src/builtins/builtins.h"
+#include "src/code-factory.h"
 
 namespace v8 {
 namespace internal {
@@ -369,5 +370,1235 @@ void Builtins::Generate_NumberPrototypeValueOf(CodeStubAssembler* assembler) {
   assembler->Return(result);
 }
 
+// static
+void Builtins::Generate_Add(CodeStubAssembler* assembler) {
+  typedef CodeStubAssembler::Label Label;
+  typedef compiler::Node Node;
+  typedef CodeStubAssembler::Variable Variable;
+
+  Node* left = assembler->Parameter(0);
+  Node* right = assembler->Parameter(1);
+  Node* context = assembler->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);
+
+  // 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* 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);
+  var_lhs.Bind(left);
+  var_rhs.Bind(right);
+  assembler->Goto(&loop);
+  assembler->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->WordIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi);
+
+    assembler->Bind(&if_lhsissmi);
+    {
+      // Check if the {rhs} is also a Smi.
+      Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler);
+      assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi,
+                        &if_rhsisnotsmi);
+
+      assembler->Bind(&if_rhsissmi);
+      {
+        // Try fast Smi addition first.
+        Node* pair = assembler->SmiAddWithOverflow(lhs, rhs);
+        Node* overflow = assembler->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);
+        }
+
+        assembler->Bind(&if_notoverflow);
+        var_result.Bind(assembler->Projection(0, pair));
+        assembler->Goto(&end);
+      }
+
+      assembler->Bind(&if_rhsisnotsmi);
+      {
+        // Load the map of {rhs}.
+        Node* rhs_map = assembler->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);
+        }
+
+        assembler->Bind(&if_rhsisnotnumber);
+        {
+          // Load the instance type of {rhs}.
+          Node* rhs_instance_type = assembler->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);
+          {
+            var_lhs.Bind(lhs);
+            var_rhs.Bind(rhs);
+            assembler->Goto(&string_add_convert_left);
+          }
+
+          assembler->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);
+            {
+              // 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);
+            {
+              // Convert {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);
+    {
+      // Load the map and instance type of {lhs}.
+      Node* lhs_instance_type = assembler->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);
+      {
+        var_lhs.Bind(lhs);
+        var_rhs.Bind(rhs);
+        assembler->Goto(&string_add_convert_right);
+      }
+
+      assembler->Bind(&if_lhsisnotstring);
+      {
+        // Check if {rhs} is a Smi.
+        Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler);
+        assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi,
+                          &if_rhsisnotsmi);
+
+        assembler->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)),
+                            &if_lhsisnumber, &if_lhsisnotnumber);
+
+          assembler->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);
+          {
+            // 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);
+            {
+              // 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);
+            {
+              // Convert {lhs} to a Number first.
+              Callable callable =
+                  CodeFactory::NonNumberToNumber(assembler->isolate());
+              var_lhs.Bind(assembler->CallStub(callable, context, lhs));
+              assembler->Goto(&loop);
+            }
+          }
+        }
+
+        assembler->Bind(&if_rhsisnotsmi);
+        {
+          // Load the instance type of {rhs}.
+          Node* rhs_instance_type = assembler->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);
+          {
+            var_lhs.Bind(lhs);
+            var_rhs.Bind(rhs);
+            assembler->Goto(&string_add_convert_left);
+          }
+
+          assembler->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);
+            {
+              // 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);
+              {
+                // Perform a floating point addition.
+                var_fadd_lhs.Bind(assembler->LoadHeapNumberValue(lhs));
+                var_fadd_rhs.Bind(assembler->LoadHeapNumberValue(rhs));
+                assembler->Goto(&do_fadd);
+              }
+
+              assembler->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);
+                {
+                  // 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);
+                {
+                  // Convert {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_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);
+              {
+                // 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);
+              {
+                // 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);
+                {
+                  // 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);
+                {
+                  // Convert {lhs} to a Number first.
+                  Callable callable =
+                      CodeFactory::NonNumberToNumber(assembler->isolate());
+                  var_lhs.Bind(assembler->CallStub(callable, context, lhs));
+                  assembler->Goto(&loop);
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+  assembler->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(
+        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);
+  {
+    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->ChangeFloat64ToTagged(value);
+    var_result.Bind(result);
+    assembler->Goto(&end);
+  }
+  assembler->Bind(&end);
+  assembler->Return(var_result.value());
+}
+
+void Builtins::Generate_Subtract(CodeStubAssembler* assembler) {
+  typedef CodeStubAssembler::Label Label;
+  typedef compiler::Node Node;
+  typedef CodeStubAssembler::Variable Variable;
+
+  Node* left = assembler->Parameter(0);
+  Node* right = assembler->Parameter(1);
+  Node* context = assembler->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);
+
+  // 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* loop_vars[2] = {&var_lhs, &var_rhs};
+  Label loop(assembler, 2, loop_vars);
+  var_lhs.Bind(left);
+  var_rhs.Bind(right);
+  assembler->Goto(&loop);
+  assembler->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->WordIsSmi(lhs), &if_lhsissmi, &if_lhsisnotsmi);
+
+    assembler->Bind(&if_lhsissmi);
+    {
+      // Check if the {rhs} is also a Smi.
+      Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler);
+      assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi,
+                        &if_rhsisnotsmi);
+
+      assembler->Bind(&if_rhsissmi);
+      {
+        // Try a fast Smi subtraction first.
+        Node* pair = assembler->SmiSubWithOverflow(lhs, rhs);
+        Node* overflow = assembler->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);
+        {
+          // 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->Projection(0, pair));
+        assembler->Goto(&end);
+      }
+
+      assembler->Bind(&if_rhsisnotsmi);
+      {
+        // Load the map of the {rhs}.
+        Node* rhs_map = assembler->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);
+        {
+          // 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);
+        {
+          // 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);
+    {
+      // Load the map of the {lhs}.
+      Node* lhs_map = assembler->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);
+      {
+        // Check if the {rhs} is a Smi.
+        Label if_rhsissmi(assembler), if_rhsisnotsmi(assembler);
+        assembler->Branch(assembler->WordIsSmi(rhs), &if_rhsissmi,
+                          &if_rhsisnotsmi);
+
+        assembler->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);
+        {
+          // Load the map of the {rhs}.
+          Node* rhs_map = assembler->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);
+          {
+            // Perform a floating point subtraction.
+            var_fsub_lhs.Bind(assembler->LoadHeapNumberValue(lhs));
+            var_fsub_rhs.Bind(assembler->LoadHeapNumberValue(rhs));
+            assembler->Goto(&do_fsub);
+          }
+
+          assembler->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_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);
+  {
+    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->ChangeFloat64ToTagged(value));
+    assembler->Goto(&end);
+  }
+  assembler->Bind(&end);
+  assembler->Return(var_result.value());
+}
+
+void Builtins::Generate_Multiply(CodeStubAssembler* assembler) {
+  typedef CodeStubAssembler::Label Label;
+  typedef compiler::Node Node;
+  typedef CodeStubAssembler::Variable Variable;
+
+  Node* left = assembler->Parameter(0);
+  Node* right = assembler->Parameter(1);
+  Node* context = assembler->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();
+
+  // 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* loop_variables[] = {&var_lhs, &var_rhs};
+  Label loop(assembler, 2, loop_variables);
+  var_lhs.Bind(left);
+  var_rhs.Bind(right);
+  assembler->Goto(&loop);
+  assembler->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->WordIsSmi(lhs), &lhs_is_smi, &lhs_is_not_smi);
+
+    assembler->Bind(&lhs_is_smi);
+    {
+      Label rhs_is_smi(assembler), rhs_is_not_smi(assembler);
+      assembler->Branch(assembler->WordIsSmi(rhs), &rhs_is_smi,
+                        &rhs_is_not_smi);
+
+      assembler->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);
+
+        // 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);
+        {
+          // 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);
+        {
+          // 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);
+    {
+      Node* lhs_map = assembler->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);
+      {
+        // Check if {rhs} is a Smi.
+        Label rhs_is_smi(assembler), rhs_is_not_smi(assembler);
+        assembler->Branch(assembler->WordIsSmi(rhs), &rhs_is_smi,
+                          &rhs_is_not_smi);
+
+        assembler->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);
+
+          // 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);
+          {
+            // 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);
+          }
+
+          assembler->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_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->ChangeFloat64ToTagged(value);
+    var_result.Bind(result);
+    assembler->Goto(&return_result);
+  }
+
+  assembler->Bind(&return_result);
+  assembler->Return(var_result.value());
+}
+
+void Builtins::Generate_Divide(CodeStubAssembler* assembler) {
+  typedef CodeStubAssembler::Label Label;
+  typedef compiler::Node Node;
+  typedef CodeStubAssembler::Variable Variable;
+
+  Node* left = assembler->Parameter(0);
+  Node* right = assembler->Parameter(1);
+  Node* context = assembler->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();
+
+  // 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* loop_variables[] = {&var_dividend, &var_divisor};
+  Label loop(assembler, 2, loop_variables);
+  var_dividend.Bind(left);
+  var_divisor.Bind(right);
+  assembler->Goto(&loop);
+  assembler->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->WordIsSmi(dividend), &dividend_is_smi,
+                      &dividend_is_not_smi);
+
+    assembler->Bind(&dividend_is_smi);
+    {
+      Label divisor_is_smi(assembler), divisor_is_not_smi(assembler);
+      assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi,
+                        &divisor_is_not_smi);
+
+      assembler->Bind(&divisor_is_smi);
+      {
+        Label bailout(assembler);
+
+        // Do floating point division if {divisor} is zero.
+        assembler->GotoIf(
+            assembler->WordEqual(divisor, assembler->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);
+
+        // 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))),
+              &bailout);
+          assembler->Goto(&divisor_is_not_minus_one);
+        }
+        assembler->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);
+        // 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);
+
+        // 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);
+
+        // 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);
+        {
+          // 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);
+        {
+          // 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);
+    {
+      Node* dividend_map = assembler->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);
+      {
+        // Check if {divisor} is a Smi.
+        Label divisor_is_smi(assembler), divisor_is_not_smi(assembler);
+        assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi,
+                          &divisor_is_not_smi);
+
+        assembler->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);
+
+          // 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);
+          {
+            // 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);
+          }
+
+          assembler->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_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->ChangeFloat64ToTagged(value));
+    assembler->Goto(&end);
+  }
+  assembler->Bind(&end);
+  assembler->Return(var_result.value());
+}
+
+void Builtins::Generate_Modulus(CodeStubAssembler* assembler) {
+  typedef CodeStubAssembler::Label Label;
+  typedef compiler::Node Node;
+  typedef CodeStubAssembler::Variable Variable;
+
+  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);
+
+  // 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();
+
+  // 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* loop_variables[] = {&var_dividend, &var_divisor};
+  Label loop(assembler, 2, loop_variables);
+  var_dividend.Bind(left);
+  var_divisor.Bind(right);
+  assembler->Goto(&loop);
+  assembler->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->WordIsSmi(dividend), &dividend_is_smi,
+                      &dividend_is_not_smi);
+
+    assembler->Bind(&dividend_is_smi);
+    {
+      Label dividend_is_not_zero(assembler);
+      Label divisor_is_smi(assembler), divisor_is_not_smi(assembler);
+      assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi,
+                        &divisor_is_not_smi);
+
+      assembler->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);
+
+        // 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);
+        {
+          // 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);
+        {
+          // 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);
+    {
+      Node* dividend_map = assembler->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);
+      {
+        // Check if {divisor} is a Smi.
+        Label divisor_is_smi(assembler), divisor_is_not_smi(assembler);
+        assembler->Branch(assembler->WordIsSmi(divisor), &divisor_is_smi,
+                          &divisor_is_not_smi);
+
+        assembler->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);
+
+          // 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);
+          {
+            // 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);
+          }
+
+          assembler->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_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->ChangeFloat64ToTagged(value));
+    assembler->Goto(&return_result);
+  }
+
+  assembler->Bind(&return_result);
+  assembler->Return(var_result.value());
+}
+
+void Builtins::Generate_ShiftLeft(CodeStubAssembler* assembler) {
+  compiler::Node* left = assembler->Parameter(0);
+  compiler::Node* right = assembler->Parameter(1);
+  compiler::Node* context = assembler->Parameter(2);
+
+  using compiler::Node;
+
+  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(CodeStubAssembler* assembler) {
+  compiler::Node* left = assembler->Parameter(0);
+  compiler::Node* right = assembler->Parameter(1);
+  compiler::Node* context = assembler->Parameter(2);
+
+  using compiler::Node;
+
+  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(CodeStubAssembler* assembler) {
+  compiler::Node* left = assembler->Parameter(0);
+  compiler::Node* right = assembler->Parameter(1);
+  compiler::Node* context = assembler->Parameter(2);
+
+  using compiler::Node;
+
+  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(CodeStubAssembler* assembler) {
+  compiler::Node* left = assembler->Parameter(0);
+  compiler::Node* right = assembler->Parameter(1);
+  compiler::Node* context = assembler->Parameter(2);
+
+  using compiler::Node;
+
+  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(CodeStubAssembler* assembler) {
+  compiler::Node* left = assembler->Parameter(0);
+  compiler::Node* right = assembler->Parameter(1);
+  compiler::Node* context = assembler->Parameter(2);
+
+  using compiler::Node;
+
+  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(CodeStubAssembler* assembler) {
+  compiler::Node* left = assembler->Parameter(0);
+  compiler::Node* right = assembler->Parameter(1);
+  compiler::Node* context = assembler->Parameter(2);
+
+  using compiler::Node;
+
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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(CodeStubAssembler* assembler) {
+  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));
+}
+
 }  // namespace internal
 }  // namespace v8