[runtime] TailCallRuntime and CallRuntime should use default argument counts

src/full-codegen/x64/full-codegen-x64.cc

 // Copyright 2012 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.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 116 matching lines @@
     DCHECK(!IsGeneratorFunction(info->literal()->kind()) || locals_count == 0);
     if (locals_count == 1) {
       __ PushRoot(Heap::kUndefinedValueRootIndex);
     } else if (locals_count > 1) {
       if (locals_count >= 128) {
         Label ok;
         __ movp(rcx, rsp);
         __ subp(rcx, Immediate(locals_count * kPointerSize));
         __ CompareRoot(rcx, Heap::kRealStackLimitRootIndex);
         __ j(above_equal, &ok, Label::kNear);
-        __ CallRuntime(Runtime::kThrowStackOverflow, 0);
+        __ CallRuntime(Runtime::kThrowStackOverflow);
         __ bind(&ok);
       }
       __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
       const int kMaxPushes = 32;
       if (locals_count >= kMaxPushes) {
         int loop_iterations = locals_count / kMaxPushes;
         __ movp(rcx, Immediate(loop_iterations));
         Label loop_header;
         __ bind(&loop_header);
         // Do pushes.
@@ skipping 16 matching lines @@
 
   // Possibly allocate a local context.
   if (info->scope()->num_heap_slots() > 0) {
     Comment cmnt(masm_, "[ Allocate context");
     bool need_write_barrier = true;
     int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
     // Argument to NewContext is the function, which is still in rdi.
     if (info->scope()->is_script_scope()) {
       __ Push(rdi);
       __ Push(info->scope()->GetScopeInfo(info->isolate()));
-      __ CallRuntime(Runtime::kNewScriptContext, 2);
+      __ CallRuntime(Runtime::kNewScriptContext);
       PrepareForBailoutForId(BailoutId::ScriptContext(), TOS_REG);
       // The new target value is not used, clobbering is safe.
       DCHECK_NULL(info->scope()->new_target_var());
     } else {
       if (info->scope()->new_target_var() != nullptr) {
         __ Push(rdx);  // Preserve new target.
       }
       if (slots <= FastNewContextStub::kMaximumSlots) {
         FastNewContextStub stub(isolate(), slots);
         __ CallStub(&stub);
         // Result of FastNewContextStub is always in new space.
         need_write_barrier = false;
       } else {
         __ Push(rdi);
-        __ CallRuntime(Runtime::kNewFunctionContext, 1);
+        __ CallRuntime(Runtime::kNewFunctionContext);
       }
       if (info->scope()->new_target_var() != nullptr) {
         __ Pop(rdx);  // Restore new target.
       }
     }
     function_in_register = false;
     // Context is returned in rax.  It replaces the context passed to us.
     // It's saved in the stack and kept live in rsi.
     __ movp(rsi, rax);
     __ movp(Operand(rbp, StandardFrameConstants::kContextOffset), rax);
@@ skipping 97 matching lines @@
     bool is_unmapped = is_strict(language_mode()) || !has_simple_parameters();
     ArgumentsAccessStub::Type type = ArgumentsAccessStub::ComputeType(
         is_unmapped, literal()->has_duplicate_parameters());
     ArgumentsAccessStub stub(isolate(), type);
     __ CallStub(&stub);
 
     SetVar(arguments, rax, rbx, rdx);
   }
 
   if (FLAG_trace) {
-    __ CallRuntime(Runtime::kTraceEnter, 0);
+    __ CallRuntime(Runtime::kTraceEnter);
   }
 
   // Visit the declarations and body unless there is an illegal
   // redeclaration.
   if (scope()->HasIllegalRedeclaration()) {
     Comment cmnt(masm_, "[ Declarations");
     VisitForEffect(scope()->GetIllegalRedeclaration());
 
   } else {
     PrepareForBailoutForId(BailoutId::FunctionEntry(), NO_REGISTERS);
@@ skipping 89 matching lines @@
 
 
 void FullCodeGenerator::EmitReturnSequence() {
   Comment cmnt(masm_, "[ Return sequence");
   if (return_label_.is_bound()) {
     __ jmp(&return_label_);
   } else {
     __ bind(&return_label_);
     if (FLAG_trace) {
       __ Push(rax);
-      __ CallRuntime(Runtime::kTraceExit, 1);
+      __ CallRuntime(Runtime::kTraceExit);
     }
     // Pretend that the exit is a backwards jump to the entry.
     int weight = 1;
     if (info_->ShouldSelfOptimize()) {
       weight = FLAG_interrupt_budget / FLAG_self_opt_count;
     } else {
       int distance = masm_->pc_offset();
       weight = Min(kMaxBackEdgeWeight,
                    Max(1, distance / kCodeSizeMultiplier));
     }
@@ skipping 373 matching lines @@
       // Push initial value, if any.
       // Note: For variables we must not push an initial value (such as
       // 'undefined') because we may have a (legal) redeclaration and we
       // must not destroy the current value.
       if (hole_init) {
         __ PushRoot(Heap::kTheHoleValueRootIndex);
       } else {
         __ Push(Smi::FromInt(0));  // Indicates no initial value.
       }
       __ Push(Smi::FromInt(variable->DeclarationPropertyAttributes()));
-      __ CallRuntime(Runtime::kDeclareLookupSlot, 3);
+      __ CallRuntime(Runtime::kDeclareLookupSlot);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitFunctionDeclaration(
     FunctionDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();
@@ skipping 33 matching lines @@
                                 OMIT_SMI_CHECK);
       PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
       break;
     }
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       __ Push(variable->name());
       VisitForStackValue(declaration->fun());
       __ Push(Smi::FromInt(variable->DeclarationPropertyAttributes()));
-      __ CallRuntime(Runtime::kDeclareLookupSlot, 3);
+      __ CallRuntime(Runtime::kDeclareLookupSlot);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
   __ Push(pairs);
   __ Push(Smi::FromInt(DeclareGlobalsFlags()));
-  __ CallRuntime(Runtime::kDeclareGlobals, 2);
+  __ CallRuntime(Runtime::kDeclareGlobals);
   // Return value is ignored.
 }
 
 
 void FullCodeGenerator::DeclareModules(Handle<FixedArray> descriptions) {
   // Call the runtime to declare the modules.
   __ Push(descriptions);
-  __ CallRuntime(Runtime::kDeclareModules, 1);
+  __ CallRuntime(Runtime::kDeclareModules);
   // Return value is ignored.
 }
 
 
 void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) {
   Comment cmnt(masm_, "[ SwitchStatement");
   Breakable nested_statement(this, stmt);
   SetStatementPosition(stmt);
 
   // Keep the switch value on the stack until a case matches.
@@ skipping 133 matching lines @@
 
   // The enum cache is valid.  Load the map of the object being
   // iterated over and use the cache for the iteration.
   Label use_cache;
   __ movp(rax, FieldOperand(rax, HeapObject::kMapOffset));
   __ jmp(&use_cache, Label::kNear);
 
   // Get the set of properties to enumerate.
   __ bind(&call_runtime);
   __ Push(rax);  // Duplicate the enumerable object on the stack.
-  __ CallRuntime(Runtime::kGetPropertyNamesFast, 1);
+  __ CallRuntime(Runtime::kGetPropertyNamesFast);
   PrepareForBailoutForId(stmt->EnumId(), TOS_REG);
 
   // If we got a map from the runtime call, we can do a fast
   // modification check. Otherwise, we got a fixed array, and we have
   // to do a slow check.
   Label fixed_array;
   __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset),
                  Heap::kMetaMapRootIndex);
   __ j(not_equal, &fixed_array);
 
@@ skipping 61 matching lines @@
   Label update_each;
   __ movp(rcx, Operand(rsp, 4 * kPointerSize));
   __ cmpp(rdx, FieldOperand(rcx, HeapObject::kMapOffset));
   __ j(equal, &update_each, Label::kNear);
 
   // Convert the entry to a string or null if it isn't a property
   // anymore. If the property has been removed while iterating, we
   // just skip it.
   __ Push(rcx);  // Enumerable.
   __ Push(rbx);  // Current entry.
-  __ CallRuntime(Runtime::kForInFilter, 2);
+  __ CallRuntime(Runtime::kForInFilter);
   PrepareForBailoutForId(stmt->FilterId(), TOS_REG);
   __ CompareRoot(rax, Heap::kUndefinedValueRootIndex);
   __ j(equal, loop_statement.continue_label());
   __ movp(rbx, rax);
 
   // Update the 'each' property or variable from the possibly filtered
   // entry in register rbx.
   __ bind(&update_each);
   __ movp(result_register(), rbx);
   // Perform the assignment as if via '='.
@@ skipping 37 matching lines @@
   if (!FLAG_always_opt &&
       !FLAG_prepare_always_opt &&
       !pretenure &&
       scope()->is_function_scope() &&
       info->num_literals() == 0) {
     FastNewClosureStub stub(isolate(), info->language_mode(), info->kind());
     __ Move(rbx, info);
     __ CallStub(&stub);
   } else {
     __ Push(info);
-    __ CallRuntime(
-        pretenure ? Runtime::kNewClosure_Tenured : Runtime::kNewClosure, 1);
+    __ CallRuntime(pretenure ? Runtime::kNewClosure_Tenured
+                             : Runtime::kNewClosure);
   }
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitSetHomeObject(Expression* initializer, int offset,
                                           FeedbackVectorSlot slot) {
   DCHECK(NeedsHomeObject(initializer));
   __ movp(StoreDescriptor::ReceiverRegister(), Operand(rsp, 0));
   __ Move(StoreDescriptor::NameRegister(),
@@ skipping 118 matching lines @@
     Variable* local = var->local_if_not_shadowed();
     __ movp(rax, ContextSlotOperandCheckExtensions(local, slow));
     if (local->mode() == LET || local->mode() == CONST ||
         local->mode() == CONST_LEGACY) {
       __ CompareRoot(rax, Heap::kTheHoleValueRootIndex);
       __ j(not_equal, done);
       if (local->mode() == CONST_LEGACY) {
         __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
       } else {  // LET || CONST
         __ Push(var->name());
-        __ CallRuntime(Runtime::kThrowReferenceError, 1);
+        __ CallRuntime(Runtime::kThrowReferenceError);
       }
     }
     __ jmp(done);
   }
 }
 
 
 void FullCodeGenerator::EmitGlobalVariableLoad(VariableProxy* proxy,
                                                TypeofMode typeof_mode) {
   Variable* var = proxy->var();
@@ skipping 34 matching lines @@
       if (NeedsHoleCheckForLoad(proxy)) {
         // Let and const need a read barrier.
         Label done;
         GetVar(rax, var);
         __ CompareRoot(rax, Heap::kTheHoleValueRootIndex);
         __ j(not_equal, &done, Label::kNear);
         if (var->mode() == LET || var->mode() == CONST) {
           // Throw a reference error when using an uninitialized let/const
           // binding in harmony mode.
           __ Push(var->name());
-          __ CallRuntime(Runtime::kThrowReferenceError, 1);
+          __ CallRuntime(Runtime::kThrowReferenceError);
         } else {
           // Uninitialized legacy const bindings are unholed.
           DCHECK(var->mode() == CONST_LEGACY);
           __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
         }
         __ bind(&done);
         context()->Plug(rax);
         break;
       }
       context()->Plug(var);
       break;
     }
 
     case VariableLocation::LOOKUP: {
       Comment cmnt(masm_, "[ Lookup slot");
       Label done, slow;
       // Generate code for loading from variables potentially shadowed
       // by eval-introduced variables.
       EmitDynamicLookupFastCase(proxy, typeof_mode, &slow, &done);
       __ bind(&slow);
       __ Push(rsi);  // Context.
       __ Push(var->name());
       Runtime::FunctionId function_id =
           typeof_mode == NOT_INSIDE_TYPEOF
               ? Runtime::kLoadLookupSlot
               : Runtime::kLoadLookupSlotNoReferenceError;
-      __ CallRuntime(function_id, 2);
+      __ CallRuntime(function_id);
       __ bind(&done);
       context()->Plug(rax);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) {
   Comment cmnt(masm_, "[ RegExpLiteral");
@@ skipping 26 matching lines @@
 void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
   Comment cmnt(masm_, "[ ObjectLiteral");
 
   Handle<FixedArray> constant_properties = expr->constant_properties();
   int flags = expr->ComputeFlags();
   if (MustCreateObjectLiteralWithRuntime(expr)) {
     __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
     __ Push(Smi::FromInt(expr->literal_index()));
     __ Push(constant_properties);
     __ Push(Smi::FromInt(flags));
-    __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
+    __ CallRuntime(Runtime::kCreateObjectLiteral);
   } else {
     __ movp(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
     __ Move(rbx, Smi::FromInt(expr->literal_index()));
     __ Move(rcx, constant_properties);
     __ Move(rdx, Smi::FromInt(flags));
     FastCloneShallowObjectStub stub(isolate(), expr->properties_count());
     __ CallStub(&stub);
   }
   PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
 
@@ skipping 42 matching lines @@
           break;
         }
         __ Push(Operand(rsp, 0));  // Duplicate receiver.
         VisitForStackValue(key);
         VisitForStackValue(value);
         if (property->emit_store()) {
           if (NeedsHomeObject(value)) {
             EmitSetHomeObject(value, 2, property->GetSlot());
           }
           __ Push(Smi::FromInt(SLOPPY));  // Language mode
-          __ CallRuntime(Runtime::kSetProperty, 4);
+          __ CallRuntime(Runtime::kSetProperty);
         } else {
           __ Drop(3);
         }
         break;
       case ObjectLiteral::Property::PROTOTYPE:
         __ Push(Operand(rsp, 0));  // Duplicate receiver.
         VisitForStackValue(value);
         DCHECK(property->emit_store());
-        __ CallRuntime(Runtime::kInternalSetPrototype, 2);
+        __ CallRuntime(Runtime::kInternalSetPrototype);
         break;
       case ObjectLiteral::Property::GETTER:
         if (property->emit_store()) {
           accessor_table.lookup(key)->second->getter = property;
         }
         break;
       case ObjectLiteral::Property::SETTER:
         if (property->emit_store()) {
           accessor_table.lookup(key)->second->setter = property;
         }
         break;
     }
   }
 
   // Emit code to define accessors, using only a single call to the runtime for
   // each pair of corresponding getters and setters.
   for (AccessorTable::Iterator it = accessor_table.begin();
        it != accessor_table.end();
        ++it) {
     __ Push(Operand(rsp, 0));  // Duplicate receiver.
     VisitForStackValue(it->first);
     EmitAccessor(it->second->getter);
     EmitAccessor(it->second->setter);
     __ Push(Smi::FromInt(NONE));
-    __ CallRuntime(Runtime::kDefineAccessorPropertyUnchecked, 5);
+    __ CallRuntime(Runtime::kDefineAccessorPropertyUnchecked);
   }
 
   // Object literals have two parts. The "static" part on the left contains no
   // computed property names, and so we can compute its map ahead of time; see
   // runtime.cc::CreateObjectLiteralBoilerplate. The second "dynamic" part
   // starts with the first computed property name, and continues with all
   // properties to its right.  All the code from above initializes the static
   // component of the object literal, and arranges for the map of the result to
   // reflect the static order in which the keys appear. For the dynamic
   // properties, we compile them into a series of "SetOwnProperty" runtime
   // calls. This will preserve insertion order.
   for (; property_index < expr->properties()->length(); property_index++) {
     ObjectLiteral::Property* property = expr->properties()->at(property_index);
 
     Expression* value = property->value();
     if (!result_saved) {
       __ Push(rax);  // Save result on the stack
       result_saved = true;
     }
 
     __ Push(Operand(rsp, 0));  // Duplicate receiver.
 
     if (property->kind() == ObjectLiteral::Property::PROTOTYPE) {
       DCHECK(!property->is_computed_name());
       VisitForStackValue(value);
       DCHECK(property->emit_store());
-      __ CallRuntime(Runtime::kInternalSetPrototype, 2);
+      __ CallRuntime(Runtime::kInternalSetPrototype);
     } else {
       EmitPropertyKey(property, expr->GetIdForProperty(property_index));
       VisitForStackValue(value);
       if (NeedsHomeObject(value)) {
         EmitSetHomeObject(value, 2, property->GetSlot());
       }
 
       switch (property->kind()) {
         case ObjectLiteral::Property::CONSTANT:
         case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         case ObjectLiteral::Property::COMPUTED:
           if (property->emit_store()) {
             __ Push(Smi::FromInt(NONE));
-            __ CallRuntime(Runtime::kDefineDataPropertyUnchecked, 4);
+            __ CallRuntime(Runtime::kDefineDataPropertyUnchecked);
           } else {
             __ Drop(3);
           }
           break;
 
         case ObjectLiteral::Property::PROTOTYPE:
           UNREACHABLE();
           break;
 
         case ObjectLiteral::Property::GETTER:
           __ Push(Smi::FromInt(NONE));
-          __ CallRuntime(Runtime::kDefineGetterPropertyUnchecked, 4);
+          __ CallRuntime(Runtime::kDefineGetterPropertyUnchecked);
           break;
 
         case ObjectLiteral::Property::SETTER:
           __ Push(Smi::FromInt(NONE));
-          __ CallRuntime(Runtime::kDefineSetterPropertyUnchecked, 4);
+          __ CallRuntime(Runtime::kDefineSetterPropertyUnchecked);
           break;
       }
     }
   }
 
   if (expr->has_function()) {
     DCHECK(result_saved);
     __ Push(Operand(rsp, 0));
-    __ CallRuntime(Runtime::kToFastProperties, 1);
+    __ CallRuntime(Runtime::kToFastProperties);
   }
 
   if (result_saved) {
     context()->PlugTOS();
   } else {
     context()->Plug(rax);
   }
 }
 
 
 void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
   Comment cmnt(masm_, "[ ArrayLiteral");
 
   Handle<FixedArray> constant_elements = expr->constant_elements();
   bool has_constant_fast_elements =
       IsFastObjectElementsKind(expr->constant_elements_kind());
 
   AllocationSiteMode allocation_site_mode = TRACK_ALLOCATION_SITE;
   if (has_constant_fast_elements && !FLAG_allocation_site_pretenuring) {
     // If the only customer of allocation sites is transitioning, then
     // we can turn it off if we don't have anywhere else to transition to.
     allocation_site_mode = DONT_TRACK_ALLOCATION_SITE;
   }
 
   if (MustCreateArrayLiteralWithRuntime(expr)) {
     __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
     __ Push(Smi::FromInt(expr->literal_index()));
     __ Push(constant_elements);
     __ Push(Smi::FromInt(expr->ComputeFlags()));
-    __ CallRuntime(Runtime::kCreateArrayLiteral, 4);
+    __ CallRuntime(Runtime::kCreateArrayLiteral);
   } else {
     __ movp(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
     __ Move(rbx, Smi::FromInt(expr->literal_index()));
     __ Move(rcx, constant_elements);
     FastCloneShallowArrayStub stub(isolate(), allocation_site_mode);
     __ CallStub(&stub);
   }
   PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
 
   bool result_saved = false;  // Is the result saved to the stack?
@@ skipping 39 matching lines @@
   for (; array_index < length; array_index++) {
     Expression* subexpr = subexprs->at(array_index);
 
     __ Push(rax);
     if (subexpr->IsSpread()) {
       VisitForStackValue(subexpr->AsSpread()->expression());
       __ InvokeBuiltin(Context::CONCAT_ITERABLE_TO_ARRAY_BUILTIN_INDEX,
                        CALL_FUNCTION);
     } else {
       VisitForStackValue(subexpr);
-      __ CallRuntime(Runtime::kAppendElement, 2);
+      __ CallRuntime(Runtime::kAppendElement);
     }
 
     PrepareForBailoutForId(expr->GetIdForElement(array_index), NO_REGISTERS);
   }
 
   if (result_saved) {
     context()->PlugTOS();
   } else {
     context()->Plug(rax);
   }
@@ skipping 376 matching lines @@
   Label push_operand_holes, call_resume;
   __ bind(&push_operand_holes);
   __ subp(rdx, Immediate(1));
   __ j(carry, &call_resume);
   __ Push(rcx);
   __ jmp(&push_operand_holes);
   __ bind(&call_resume);
   __ Push(rbx);
   __ Push(result_register());
   __ Push(Smi::FromInt(resume_mode));
-  __ CallRuntime(Runtime::kResumeJSGeneratorObject, 3);
+  __ CallRuntime(Runtime::kResumeJSGeneratorObject);
   // Not reached: the runtime call returns elsewhere.
   __ Abort(kGeneratorFailedToResume);
 
   __ bind(&done);
   context()->Plug(result_register());
 }
 
 
 void FullCodeGenerator::EmitCreateIteratorResult(bool done) {
   Label allocate, done_allocate;
 
   __ Allocate(JSIteratorResult::kSize, rax, rcx, rdx, &allocate, TAG_OBJECT);
   __ jmp(&done_allocate, Label::kNear);
 
   __ bind(&allocate);
   __ Push(Smi::FromInt(JSIteratorResult::kSize));
-  __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
+  __ CallRuntime(Runtime::kAllocateInNewSpace);
 
   __ bind(&done_allocate);
   __ LoadNativeContextSlot(Context::ITERATOR_RESULT_MAP_INDEX, rbx);
   __ movp(FieldOperand(rax, HeapObject::kMapOffset), rbx);
   __ LoadRoot(rbx, Heap::kEmptyFixedArrayRootIndex);
   __ movp(FieldOperand(rax, JSObject::kPropertiesOffset), rbx);
   __ movp(FieldOperand(rax, JSObject::kElementsOffset), rbx);
   __ Pop(FieldOperand(rax, JSIteratorResult::kValueOffset));
   __ LoadRoot(FieldOperand(rax, JSIteratorResult::kDoneOffset),
               done ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex);
@@ skipping 15 matching lines @@
 
 void FullCodeGenerator::EmitNamedSuperPropertyLoad(Property* prop) {
   // Stack: receiver, home_object
   SetExpressionPosition(prop);
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!key->value()->IsSmi());
   DCHECK(prop->IsSuperAccess());
 
   __ Push(key->value());
   __ Push(Smi::FromInt(language_mode()));
-  __ CallRuntime(Runtime::kLoadFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadFromSuper);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetExpressionPosition(prop);
   Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate(), language_mode()).code();
   __ Move(LoadDescriptor::SlotRegister(),
           SmiFromSlot(prop->PropertyFeedbackSlot()));
   CallIC(ic);
 }
 
 
 void FullCodeGenerator::EmitKeyedSuperPropertyLoad(Property* prop) {
   // Stack: receiver, home_object, key.
   SetExpressionPosition(prop);
   __ Push(Smi::FromInt(language_mode()));
-  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadKeyedFromSuper);
 }
 
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
                                               Expression* left,
                                               Expression* right) {
   // Do combined smi check of the operands. Left operand is on the
   // stack (popped into rdx). Right operand is in rax but moved into
   // rcx to make the shifts easier.
@@ skipping 71 matching lines @@
     } else {
       __ Push(Operand(rsp, 0));  // prototype
     }
     EmitPropertyKey(property, lit->GetIdForProperty(i));
 
     // The static prototype property is read only. We handle the non computed
     // property name case in the parser. Since this is the only case where we
     // need to check for an own read only property we special case this so we do
     // not need to do this for every property.
     if (property->is_static() && property->is_computed_name()) {
-      __ CallRuntime(Runtime::kThrowIfStaticPrototype, 1);
+      __ CallRuntime(Runtime::kThrowIfStaticPrototype);
       __ Push(rax);
     }
 
     VisitForStackValue(value);
     if (NeedsHomeObject(value)) {
       EmitSetHomeObject(value, 2, property->GetSlot());
     }
 
     switch (property->kind()) {
       case ObjectLiteral::Property::CONSTANT:
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
       case ObjectLiteral::Property::PROTOTYPE:
         UNREACHABLE();
       case ObjectLiteral::Property::COMPUTED:
-        __ CallRuntime(Runtime::kDefineClassMethod, 3);
+        __ CallRuntime(Runtime::kDefineClassMethod);
         break;
 
       case ObjectLiteral::Property::GETTER:
         __ Push(Smi::FromInt(DONT_ENUM));
-        __ CallRuntime(Runtime::kDefineGetterPropertyUnchecked, 4);
+        __ CallRuntime(Runtime::kDefineGetterPropertyUnchecked);
         break;
 
       case ObjectLiteral::Property::SETTER:
         __ Push(Smi::FromInt(DONT_ENUM));
-        __ CallRuntime(Runtime::kDefineSetterPropertyUnchecked, 4);
+        __ CallRuntime(Runtime::kDefineSetterPropertyUnchecked);
         break;
 
       default:
         UNREACHABLE();
     }
   }
 
   // Set both the prototype and constructor to have fast properties, and also
   // freeze them in strong mode.
-  __ CallRuntime(Runtime::kFinalizeClassDefinition, 2);
+  __ CallRuntime(Runtime::kFinalizeClassDefinition);
 }
 
 
 void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr, Token::Value op) {
   __ Pop(rdx);
   Handle<Code> code =
       CodeFactory::BinaryOpIC(isolate(), op, strength(language_mode())).code();
   JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
   CallIC(code, expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
@@ skipping 104 matching lines @@
   } else if (var->mode() == LET && op != Token::INIT) {
     // Non-initializing assignment to let variable needs a write barrier.
     DCHECK(!var->IsLookupSlot());
     DCHECK(var->IsStackAllocated() || var->IsContextSlot());
     Label assign;
     MemOperand location = VarOperand(var, rcx);
     __ movp(rdx, location);
     __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
     __ j(not_equal, &assign, Label::kNear);
     __ Push(var->name());
-    __ CallRuntime(Runtime::kThrowReferenceError, 1);
+    __ CallRuntime(Runtime::kThrowReferenceError);
     __ bind(&assign);
     EmitStoreToStackLocalOrContextSlot(var, location);
 
   } else if (var->mode() == CONST && op != Token::INIT) {
     // Assignment to const variable needs a write barrier.
     DCHECK(!var->IsLookupSlot());
     DCHECK(var->IsStackAllocated() || var->IsContextSlot());
     Label const_error;
     MemOperand location = VarOperand(var, rcx);
     __ movp(rdx, location);
     __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
     __ j(not_equal, &const_error, Label::kNear);
     __ Push(var->name());
-    __ CallRuntime(Runtime::kThrowReferenceError, 1);
+    __ CallRuntime(Runtime::kThrowReferenceError);
     __ bind(&const_error);
-    __ CallRuntime(Runtime::kThrowConstAssignError, 0);
+    __ CallRuntime(Runtime::kThrowConstAssignError);
 
   } else if (var->is_this() && var->mode() == CONST && op == Token::INIT) {
     // Initializing assignment to const {this} needs a write barrier.
     DCHECK(var->IsStackAllocated() || var->IsContextSlot());
     Label uninitialized_this;
     MemOperand location = VarOperand(var, rcx);
     __ movp(rdx, location);
     __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
     __ j(equal, &uninitialized_this);
     __ Push(var->name());
-    __ CallRuntime(Runtime::kThrowReferenceError, 1);
+    __ CallRuntime(Runtime::kThrowReferenceError);
     __ bind(&uninitialized_this);
     EmitStoreToStackLocalOrContextSlot(var, location);
 
   } else if (!var->is_const_mode() ||
              (var->mode() == CONST && op == Token::INIT)) {
     if (var->IsLookupSlot()) {
       // Assignment to var.
       __ Push(rax);  // Value.
       __ Push(rsi);  // Context.
       __ Push(var->name());
       __ Push(Smi::FromInt(language_mode()));
-      __ CallRuntime(Runtime::kStoreLookupSlot, 4);
+      __ CallRuntime(Runtime::kStoreLookupSlot);
     } else {
       // Assignment to var or initializing assignment to let/const in harmony
       // mode.
       DCHECK(var->IsStackAllocated() || var->IsContextSlot());
       MemOperand location = VarOperand(var, rcx);
       if (generate_debug_code_ && var->mode() == LET && op == Token::INIT) {
         // Check for an uninitialized let binding.
         __ movp(rdx, location);
         __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
         __ Check(equal, kLetBindingReInitialization);
       }
       EmitStoreToStackLocalOrContextSlot(var, location);
     }
 
   } else if (var->mode() == CONST_LEGACY && op == Token::INIT) {
     // Const initializers need a write barrier.
     DCHECK(!var->IsParameter());  // No const parameters.
     if (var->IsLookupSlot()) {
       __ Push(rax);
       __ Push(rsi);
       __ Push(var->name());
-      __ CallRuntime(Runtime::kInitializeLegacyConstLookupSlot, 3);
+      __ CallRuntime(Runtime::kInitializeLegacyConstLookupSlot);
     } else {
       DCHECK(var->IsStackLocal() || var->IsContextSlot());
       Label skip;
       MemOperand location = VarOperand(var, rcx);
       __ movp(rdx, location);
       __ CompareRoot(rdx, Heap::kTheHoleValueRootIndex);
       __ j(not_equal, &skip);
       EmitStoreToStackLocalOrContextSlot(var, location);
       __ bind(&skip);
     }
 
   } else {
     DCHECK(var->mode() == CONST_LEGACY && op != Token::INIT);
     if (is_strict(language_mode())) {
-      __ CallRuntime(Runtime::kThrowConstAssignError, 0);
+      __ CallRuntime(Runtime::kThrowConstAssignError);
     }
     // Silently ignore store in sloppy mode.
   }
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a named store IC.
   Property* prop = expr->target()->AsProperty();
   DCHECK(prop != NULL);
@@ skipping 13 matching lines @@
   // Assignment to named property of super.
   // rax : value
   // stack : receiver ('this'), home_object
   DCHECK(prop != NULL);
   Literal* key = prop->key()->AsLiteral();
   DCHECK(key != NULL);
 
   __ Push(key->value());
   __ Push(rax);
   __ CallRuntime((is_strict(language_mode()) ? Runtime::kStoreToSuper_Strict
-                                             : Runtime::kStoreToSuper_Sloppy),
-                 4);
+                                             : Runtime::kStoreToSuper_Sloppy));
 }
 
 
 void FullCodeGenerator::EmitKeyedSuperPropertyStore(Property* prop) {
   // Assignment to named property of super.
   // rax : value
   // stack : receiver ('this'), home_object, key
   DCHECK(prop != NULL);
 
   __ Push(rax);
-  __ CallRuntime(
-      (is_strict(language_mode()) ? Runtime::kStoreKeyedToSuper_Strict
-                                  : Runtime::kStoreKeyedToSuper_Sloppy),
-      4);
+  __ CallRuntime((is_strict(language_mode())
+                      ? Runtime::kStoreKeyedToSuper_Strict
+                      : Runtime::kStoreKeyedToSuper_Sloppy));
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a keyed store IC.
   __ Pop(StoreDescriptor::NameRegister());  // Key.
   __ Pop(StoreDescriptor::ReceiverRegister());
   DCHECK(StoreDescriptor::ValueRegister().is(rax));
   Handle<Code> ic =
       CodeFactory::KeyedStoreIC(isolate(), language_mode()).code();
@@ skipping 101 matching lines @@
   __ Push(key->value());
   __ Push(Smi::FromInt(language_mode()));
 
   // Stack here:
   //  - home_object
   //  - this (receiver)
   //  - this (receiver) <-- LoadFromSuper will pop here and below.
   //  - home_object
   //  - key
   //  - language_mode
-  __ CallRuntime(Runtime::kLoadFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadFromSuper);
 
   // Replace home_object with target function.
   __ movp(Operand(rsp, kPointerSize), rax);
 
   // Stack here:
   // - target function
   // - this (receiver)
   EmitCall(expr);
 }
 
@@ skipping 38 matching lines @@
   VisitForStackValue(prop->key());
   __ Push(Smi::FromInt(language_mode()));
 
   // Stack here:
   //  - home_object
   //  - this (receiver)
   //  - this (receiver) <-- LoadKeyedFromSuper will pop here and below.
   //  - home_object
   //  - key
   //  - language_mode
-  __ CallRuntime(Runtime::kLoadKeyedFromSuper, 4);
+  __ CallRuntime(Runtime::kLoadKeyedFromSuper);
 
   // Replace home_object with target function.
   __ movp(Operand(rsp, kPointerSize), rax);
 
   // Stack here:
   // - target function
   // - this (receiver)
   EmitCall(expr);
 }
 
@@ skipping 35 matching lines @@
   // Push the enclosing function.
   __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
 
   // Push the language mode.
   __ Push(Smi::FromInt(language_mode()));
 
   // Push the start position of the scope the calls resides in.
   __ Push(Smi::FromInt(scope()->start_position()));
 
   // Do the runtime call.
-  __ CallRuntime(Runtime::kResolvePossiblyDirectEval, 5);
+  __ CallRuntime(Runtime::kResolvePossiblyDirectEval);
 }
 
 
 // See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls.
 void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) {
   VariableProxy* callee = expr->expression()->AsVariableProxy();
   if (callee->var()->IsLookupSlot()) {
     Label slow, done;
     SetExpressionPosition(callee);
     // Generate code for loading from variables potentially shadowed by
     // eval-introduced variables.
     EmitDynamicLookupFastCase(callee, NOT_INSIDE_TYPEOF, &slow, &done);
     __ bind(&slow);
     // Call the runtime to find the function to call (returned in rax) and
     // the object holding it (returned in rdx).
     __ Push(context_register());
     __ Push(callee->name());
-    __ CallRuntime(Runtime::kLoadLookupSlot, 2);
+    __ CallRuntime(Runtime::kLoadLookupSlot);
     __ Push(rax);  // Function.
     __ Push(rdx);  // Receiver.
     PrepareForBailoutForId(expr->LookupId(), NO_REGISTERS);
 
     // If fast case code has been generated, emit code to push the function
     // and receiver and have the slow path jump around this code.
     if (done.is_linked()) {
       Label call;
       __ jmp(&call, Label::kNear);
       __ bind(&done);
@@ skipping 628 matching lines @@
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(1, args->length());
 
   // Load the argument into rax and convert it.
   VisitForAccumulatorValue(args->at(0));
 
   // Convert the object to an integer.
   Label done_convert;
   __ JumpIfSmi(rax, &done_convert, Label::kNear);
   __ Push(rax);
-  __ CallRuntime(Runtime::kToInteger, 1);
+  __ CallRuntime(Runtime::kToInteger);
   __ bind(&done_convert);
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitToName(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(1, args->length());
 
   // Load the argument into rax and convert it.
   VisitForAccumulatorValue(args->at(0));
 
   // Convert the object to a name.
   Label convert, done_convert;
   __ JumpIfSmi(rax, &convert, Label::kNear);
   STATIC_ASSERT(FIRST_NAME_TYPE == FIRST_TYPE);
   __ CmpObjectType(rax, LAST_NAME_TYPE, rcx);
   __ j(below_equal, &done_convert, Label::kNear);
   __ bind(&convert);
   __ Push(rax);
-  __ CallRuntime(Runtime::kToName, 1);
+  __ CallRuntime(Runtime::kToName);
   __ bind(&done_convert);
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
@@ skipping 489 matching lines @@
   __ movp(FieldOperand(rax, HeapObject::kMapOffset), rbx);
   __ LoadRoot(rbx, Heap::kEmptyFixedArrayRootIndex);
   __ movp(FieldOperand(rax, JSObject::kPropertiesOffset), rbx);
   __ movp(FieldOperand(rax, JSObject::kElementsOffset), rbx);
   __ Pop(FieldOperand(rax, JSIteratorResult::kDoneOffset));
   __ Pop(FieldOperand(rax, JSIteratorResult::kValueOffset));
   STATIC_ASSERT(JSIteratorResult::kSize == 5 * kPointerSize);
   __ jmp(&done, Label::kNear);
 
   __ bind(&runtime);
-  __ CallRuntime(Runtime::kCreateIterResultObject, 2);
+  __ CallRuntime(Runtime::kCreateIterResultObject);
 
   __ bind(&done);
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitLoadJSRuntimeFunction(CallRuntime* expr) {
   // Push the builtins object as receiver.
   __ PushRoot(Heap::kUndefinedValueRootIndex);
 
@@ skipping 70 matching lines @@
     case Token::DELETE: {
       Comment cmnt(masm_, "[ UnaryOperation (DELETE)");
       Property* property = expr->expression()->AsProperty();
       VariableProxy* proxy = expr->expression()->AsVariableProxy();
 
       if (property != NULL) {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
         __ CallRuntime(is_strict(language_mode())
                            ? Runtime::kDeleteProperty_Strict
-                           : Runtime::kDeleteProperty_Sloppy,
-                       2);
+                           : Runtime::kDeleteProperty_Sloppy);
         context()->Plug(rax);
       } else if (proxy != NULL) {
         Variable* var = proxy->var();
         // Delete of an unqualified identifier is disallowed in strict mode but
         // "delete this" is allowed.
         bool is_this = var->HasThisName(isolate());
         DCHECK(is_sloppy(language_mode()) || is_this);
         if (var->IsUnallocatedOrGlobalSlot()) {
           __ movp(rax, NativeContextOperand());
           __ Push(ContextOperand(rax, Context::EXTENSION_INDEX));
           __ Push(var->name());
-          __ CallRuntime(Runtime::kDeleteProperty_Sloppy, 2);
+          __ CallRuntime(Runtime::kDeleteProperty_Sloppy);
           context()->Plug(rax);
         } else if (var->IsStackAllocated() || var->IsContextSlot()) {
           // Result of deleting non-global variables is false.  'this' is
           // not really a variable, though we implement it as one.  The
           // subexpression does not have side effects.
           context()->Plug(is_this);
         } else {
           // Non-global variable.  Call the runtime to try to delete from the
           // context where the variable was introduced.
           __ Push(context_register());
           __ Push(var->name());
-          __ CallRuntime(Runtime::kDeleteLookupSlot, 2);
+          __ CallRuntime(Runtime::kDeleteLookupSlot);
           context()->Plug(rax);
         }
       } else {
         // Result of deleting non-property, non-variable reference is true.
         // The subexpression may have side effects.
         VisitForEffect(expr->expression());
         context()->Plug(true);
       }
       break;
     }
@@ skipping 414 matching lines @@
   Label* if_false = NULL;
   Label* fall_through = NULL;
   context()->PrepareTest(&materialize_true, &materialize_false,
                          &if_true, &if_false, &fall_through);
 
   Token::Value op = expr->op();
   VisitForStackValue(expr->left());
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
-      __ CallRuntime(Runtime::kHasProperty, 2);
+      __ CallRuntime(Runtime::kHasProperty);
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ CompareRoot(rax, Heap::kTrueValueRootIndex);
       Split(equal, if_true, if_false, fall_through);
       break;
 
     case Token::INSTANCEOF: {
       VisitForAccumulatorValue(expr->right());
       __ Pop(rdx);
       InstanceOfStub stub(isolate());
       __ CallStub(&stub);
@@ skipping 253 matching lines @@
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64