[interpreter] Create custom call opcodes for specific argument counts

src/compiler/bytecode-graph-builder.cc

 // Copyright 2015 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/compiler/bytecode-graph-builder.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler/compiler-source-position-table.h"
@@ skipping 1213 matching lines @@
   // only an estimate and does not match {ObjectLiteral::properties_count}.
   int number_of_properties = constant_properties->size();
   Node* literal = NewNode(
       javascript()->CreateLiteralObject(constant_properties, literal_flags,
                                         literal_index, number_of_properties),
       GetFunctionClosure());
   environment()->BindRegister(bytecode_iterator().GetRegisterOperand(3),
                               literal, Environment::kAttachFrameState);
 }
 
-Node* BytecodeGraphBuilder::ProcessCallArguments(const Operator* call_op,
-                                                 Node* callee,
-                                                 interpreter::Register receiver,
-                                                 size_t arity) {
+Node* const* BytecodeGraphBuilder::GetCallArgumentsFromRegister(
+    Node* callee, interpreter::Register receiver, size_t arity) {
   Node** all = local_zone()->NewArray<Node*>(static_cast<int>(arity));
   all[0] = callee;
   all[1] = environment()->LookupRegister(receiver);
   int receiver_index = receiver.index();
   for (int i = 2; i < static_cast<int>(arity); ++i) {
     all[i] = environment()->LookupRegister(
         interpreter::Register(receiver_index + i - 1));
   }
-  Node* value = MakeNode(call_op, static_cast<int>(arity), all, false);
-  return value;
+  return all;
+}
+
+Node* BytecodeGraphBuilder::ProcessCallArguments(const Operator* call_op,
+                                                 Node* const* args,
+                                                 size_t arg_count) {
+  return MakeNode(call_op, static_cast<int>(arg_count), args, false);
+}
+
+Node* BytecodeGraphBuilder::ProcessCallArguments(const Operator* call_op,
+                                                 Node* callee,
+                                                 interpreter::Register receiver,
+                                                 size_t arg_count) {
+  return ProcessCallArguments(
+      call_op, GetCallArgumentsFromRegister(callee, receiver, arg_count),
+      arg_count);
+}
+
+void BytecodeGraphBuilder::BuildCall(TailCallMode tail_call_mode,
+                                     ConvertReceiverMode receiver_hint,
+                                     Node* const* args, size_t arg_count,
+                                     int slot_id) {
+  PrepareEagerCheckpoint();
+
+  // Slot index of 0 is used indicate no feedback slot is available. Assert
+  // the assumption that slot index 0 is never a valid feedback slot.
+  STATIC_ASSERT(TypeFeedbackVector::kReservedIndexCount > 0);
+  VectorSlotPair feedback = CreateVectorSlotPair(slot_id);
+
+  float const frequency = ComputeCallFrequency(slot_id);
+  const Operator* call = javascript()->Call(arg_count, frequency, feedback,
+                                            receiver_hint, tail_call_mode);
+  Node* value = ProcessCallArguments(call, args, arg_count);
+  environment()->BindAccumulator(value, Environment::kAttachFrameState);
 }
 
 void BytecodeGraphBuilder::BuildCall(TailCallMode tail_call_mode,
                                      ConvertReceiverMode receiver_hint) {
-  PrepareEagerCheckpoint();
-
   Node* callee =
       environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
   interpreter::Register receiver = bytecode_iterator().GetRegisterOperand(1);
   size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
-
-  // Slot index of 0 is used indicate no feedback slot is available. Assert
-  // the assumption that slot index 0 is never a valid feedback slot.
-  STATIC_ASSERT(TypeFeedbackVector::kReservedIndexCount > 0);
   int const slot_id = bytecode_iterator().GetIndexOperand(3);
-  VectorSlotPair feedback = CreateVectorSlotPair(slot_id);
-
-  float const frequency = ComputeCallFrequency(slot_id);
-  const Operator* call = javascript()->Call(arg_count + 1, frequency, feedback,
-                                            receiver_hint, tail_call_mode);
-  Node* value = ProcessCallArguments(call, callee, receiver, arg_count + 1);
-  environment()->BindAccumulator(value, Environment::kAttachFrameState);
+  BuildCall(tail_call_mode, receiver_hint,
+            GetCallArgumentsFromRegister(callee, receiver, arg_count + 1),
+            arg_count + 1, slot_id);
 }
 
 void BytecodeGraphBuilder::VisitCall() {
   BuildCall(TailCallMode::kDisallow, ConvertReceiverMode::kAny);
 }
 
+void BytecodeGraphBuilder::VisitCall0() {
+  Node* callee =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Node* receiver =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(1));
+  int const slot_id = bytecode_iterator().GetIndexOperand(2);
+  BuildCall(TailCallMode::kDisallow, ConvertReceiverMode::kAny,
+            {callee, receiver}, slot_id);
+}
+
+void BytecodeGraphBuilder::VisitCall1() {
+  Node* callee =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Node* receiver =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(1));
+  Node* arg0 =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(2));
+  int const slot_id = bytecode_iterator().GetIndexOperand(3);
+  BuildCall(TailCallMode::kDisallow, ConvertReceiverMode::kAny,
+            {callee, receiver, arg0}, slot_id);
+}
+
+void BytecodeGraphBuilder::VisitCall2() {
+  Node* callee =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
+  Node* receiver =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(1));
+  Node* arg0 =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(2));
+  Node* arg1 =
+      environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(3));
+  int const slot_id = bytecode_iterator().GetIndexOperand(4);
+  BuildCall(TailCallMode::kDisallow, ConvertReceiverMode::kAny,
+            {callee, receiver, arg0, arg1}, slot_id);
+}
+
 void BytecodeGraphBuilder::VisitCallWithSpread() {
   PrepareEagerCheckpoint();
   Node* callee =
       environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
   interpreter::Register receiver = bytecode_iterator().GetRegisterOperand(1);
   size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
   const Operator* call =
       javascript()->CallWithSpread(static_cast<int>(arg_count + 1));
 
   Node* value = ProcessCallArguments(call, callee, receiver, arg_count + 1);
@@ skipping 846 matching lines @@
     int next_end = table->GetRangeEnd(current_exception_handler_);
     int next_handler = table->GetRangeHandler(current_exception_handler_);
     int context_register = table->GetRangeData(current_exception_handler_);
     exception_handlers_.push(
         {next_start, next_end, next_handler, context_register});
     current_exception_handler_++;
   }
 }
 
 Node* BytecodeGraphBuilder::MakeNode(const Operator* op, int value_input_count,
-                                     Node** value_inputs, bool incomplete) {
+                                     Node* const* value_inputs,
+                                     bool incomplete) {
   DCHECK_EQ(op->ValueInputCount(), value_input_count);
 
   bool has_context = OperatorProperties::HasContextInput(op);
   bool has_frame_state = OperatorProperties::HasFrameStateInput(op);
   bool has_control = op->ControlInputCount() == 1;
   bool has_effect = op->EffectInputCount() == 1;
 
   DCHECK_LT(op->ControlInputCount(), 2);
   DCHECK_LT(op->EffectInputCount(), 2);
 
@@ skipping 147 matching lines @@
         it->source_position().ScriptOffset(), start_position_.InliningId()));
     it->Advance();
   } else {
     DCHECK_GT(it->code_offset(), offset);
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8