[interpreter] Split out intrinsics generation

src/interpreter/interpreter-intrinsics-generator.cc

-// Copyright 2015 the V8 project authors. All rights reserved.
+// Copyright 2017 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/interpreter/interpreter-intrinsics-generator.h"
+
+#include "src/allocation.h"
+#include "src/builtins/builtins.h"
+#include "src/code-factory.h"
+#include "src/frames.h"
+#include "src/interpreter/bytecodes.h"
+#include "src/interpreter/interpreter-assembler.h"
 #include "src/interpreter/interpreter-intrinsics.h"
 
-#include "src/code-factory.h"
-#include "src/objects-inl.h"
-
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 using compiler::Node;
 
+class IntrinsicsGenerator {
+ public:
+  explicit IntrinsicsGenerator(InterpreterAssembler* assembler)
+      : isolate_(assembler->isolate()),
+        zone_(assembler->zone()),
+        assembler_(assembler) {}
+
+  Node* InvokeIntrinsic(Node* function_id, Node* context, Node* first_arg_reg,
+                        Node* arg_count);
+
+ private:
+  enum InstanceTypeCompareMode {
+    kInstanceTypeEqual,
+    kInstanceTypeGreaterThanOrEqual
+  };
+
+  Node* IsInstanceType(Node* input, int type);
+  Node* CompareInstanceType(Node* map, int type, InstanceTypeCompareMode mode);
+  Node* IntrinsicAsStubCall(Node* input, Node* context,
+                            Callable const& callable);
+  void AbortIfArgCountMismatch(int expected, compiler::Node* actual);
+
+#define DECLARE_INTRINSIC_HELPER(name, lower_case, count) \
+  Node* name(Node* input, Node* arg_count, Node* context);
+  INTRINSICS_LIST(DECLARE_INTRINSIC_HELPER)
+#undef DECLARE_INTRINSIC_HELPER
+
+  Isolate* isolate() { return isolate_; }
+  Zone* zone() { return zone_; }
+
+  Isolate* isolate_;
+  Zone* zone_;
+  InterpreterAssembler* assembler_;
+
+  DISALLOW_COPY_AND_ASSIGN(IntrinsicsGenerator);
+};
+
+Node* GenerateInvokeIntrinsic(InterpreterAssembler* assembler,
+                              Node* function_id, Node* context,
+                              Node* first_arg_reg, Node* arg_count) {
+  IntrinsicsGenerator generator(assembler);
+  return generator.InvokeIntrinsic(function_id, context, first_arg_reg,
+                                   arg_count);
+}
+
 #define __ assembler_->
 
-IntrinsicsHelper::IntrinsicsHelper(InterpreterAssembler* assembler)
-    : isolate_(assembler->isolate()),
-      zone_(assembler->zone()),
-      assembler_(assembler) {}
-
-// static
-bool IntrinsicsHelper::IsSupported(Runtime::FunctionId function_id) {
-  switch (function_id) {
-#define SUPPORTED(name, lower_case, count) case Runtime::kInline##name:
-    INTRINSICS_LIST(SUPPORTED)
-    return true;
-#undef SUPPORTED
-    default:
-      return false;
-  }
-}
-
-// static
-IntrinsicsHelper::IntrinsicId IntrinsicsHelper::FromRuntimeId(
-    Runtime::FunctionId function_id) {
-  switch (function_id) {
-#define TO_RUNTIME_ID(name, lower_case, count) \
-  case Runtime::kInline##name:                 \
-    return IntrinsicId::k##name;
-    INTRINSICS_LIST(TO_RUNTIME_ID)
-#undef TO_RUNTIME_ID
-    default:
-      UNREACHABLE();
-      return static_cast<IntrinsicsHelper::IntrinsicId>(-1);
-  }
-}
-
-// static
-Runtime::FunctionId IntrinsicsHelper::ToRuntimeId(
-    IntrinsicsHelper::IntrinsicId intrinsic_id) {
-  switch (intrinsic_id) {
-#define TO_INTRINSIC_ID(name, lower_case, count) \
-  case IntrinsicId::k##name:                     \
-    return Runtime::kInline##name;
-    INTRINSICS_LIST(TO_INTRINSIC_ID)
-#undef TO_INTRINSIC_ID
-    default:
-      UNREACHABLE();
-      return static_cast<Runtime::FunctionId>(-1);
-  }
-}
-
-Node* IntrinsicsHelper::InvokeIntrinsic(Node* function_id, Node* context,
-                                        Node* first_arg_reg, Node* arg_count) {
+Node* IntrinsicsGenerator::InvokeIntrinsic(Node* function_id, Node* context,
+                                           Node* first_arg_reg,
+                                           Node* arg_count) {
   InterpreterAssembler::Label abort(assembler_), end(assembler_);
   InterpreterAssembler::Variable result(assembler_,
                                         MachineRepresentation::kTagged);
 
 #define MAKE_LABEL(name, lower_case, count) \
   InterpreterAssembler::Label lower_case(assembler_);
   INTRINSICS_LIST(MAKE_LABEL)
 #undef MAKE_LABEL
 
 #define LABEL_POINTER(name, lower_case, count) &lower_case,
   InterpreterAssembler::Label* labels[] = {INTRINSICS_LIST(LABEL_POINTER)};
 #undef LABEL_POINTER
 
 #define CASE(name, lower_case, count) \
-  static_cast<int32_t>(IntrinsicId::k##name),
+  static_cast<int32_t>(IntrinsicsHelper::IntrinsicId::k##name),
   int32_t cases[] = {INTRINSICS_LIST(CASE)};
 #undef CASE
 
   __ Switch(function_id, &abort, cases, labels, arraysize(cases));
 #define HANDLE_CASE(name, lower_case, expected_arg_count)   \
   __ Bind(&lower_case);                                     \
   if (FLAG_debug_code && expected_arg_count >= 0) {         \
     AbortIfArgCountMismatch(expected_arg_count, arg_count); \
   }                                                         \
   result.Bind(name(first_arg_reg, arg_count, context));     \
   __ Goto(&end);
   INTRINSICS_LIST(HANDLE_CASE)
 #undef HANDLE_CASE
 
   __ Bind(&abort);
   {
     __ Abort(BailoutReason::kUnexpectedFunctionIDForInvokeIntrinsic);
     result.Bind(__ UndefinedConstant());
     __ Goto(&end);
   }
 
   __ Bind(&end);
   return result.value();
 }
 
-Node* IntrinsicsHelper::CompareInstanceType(Node* object, int type,
-                                            InstanceTypeCompareMode mode) {
+Node* IntrinsicsGenerator::CompareInstanceType(Node* object, int type,
+                                               InstanceTypeCompareMode mode) {
   Node* instance_type = __ LoadInstanceType(object);
 
   if (mode == kInstanceTypeEqual) {
     return __ Word32Equal(instance_type, __ Int32Constant(type));
   } else {
     DCHECK(mode == kInstanceTypeGreaterThanOrEqual);
     return __ Int32GreaterThanOrEqual(instance_type, __ Int32Constant(type));
   }
 }
 
-Node* IntrinsicsHelper::IsInstanceType(Node* input, int type) {
+Node* IntrinsicsGenerator::IsInstanceType(Node* input, int type) {
   InterpreterAssembler::Variable return_value(assembler_,
                                               MachineRepresentation::kTagged);
   // TODO(ishell): Use Select here.
   InterpreterAssembler::Label if_not_smi(assembler_), return_true(assembler_),
       return_false(assembler_), end(assembler_);
   Node* arg = __ LoadRegister(input);
   __ GotoIf(__ TaggedIsSmi(arg), &return_false);
 
   Node* condition = CompareInstanceType(arg, type, kInstanceTypeEqual);
   __ Branch(condition, &return_true, &return_false);
 
   __ Bind(&return_true);
   {
     return_value.Bind(__ BooleanConstant(true));
     __ Goto(&end);
   }
 
   __ Bind(&return_false);
   {
     return_value.Bind(__ BooleanConstant(false));
     __ Goto(&end);
   }
 
   __ Bind(&end);
   return return_value.value();
 }
 
-Node* IntrinsicsHelper::IsJSReceiver(Node* input, Node* arg_count,
-                                     Node* context) {
+Node* IntrinsicsGenerator::IsJSReceiver(Node* input, Node* arg_count,
+                                        Node* context) {
   // TODO(ishell): Use Select here.
   // TODO(ishell): Use CSA::IsJSReceiverInstanceType here.
   InterpreterAssembler::Variable return_value(assembler_,
                                               MachineRepresentation::kTagged);
   InterpreterAssembler::Label return_true(assembler_), return_false(assembler_),
       end(assembler_);
 
   Node* arg = __ LoadRegister(input);
   __ GotoIf(__ TaggedIsSmi(arg), &return_false);
 
@@ skipping 11 matching lines @@
   __ Bind(&return_false);
   {
     return_value.Bind(__ BooleanConstant(false));
     __ Goto(&end);
   }
 
   __ Bind(&end);
   return return_value.value();
 }
 
-Node* IntrinsicsHelper::IsArray(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::IsArray(Node* input, Node* arg_count,
+                                   Node* context) {
   return IsInstanceType(input, JS_ARRAY_TYPE);
 }
 
-Node* IntrinsicsHelper::IsJSProxy(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::IsJSProxy(Node* input, Node* arg_count,
+                                     Node* context) {
   return IsInstanceType(input, JS_PROXY_TYPE);
 }
 
-Node* IntrinsicsHelper::IsTypedArray(Node* input, Node* arg_count,
-                                     Node* context) {
+Node* IntrinsicsGenerator::IsTypedArray(Node* input, Node* arg_count,
+                                        Node* context) {
   return IsInstanceType(input, JS_TYPED_ARRAY_TYPE);
 }
 
-Node* IntrinsicsHelper::IsSmi(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::IsSmi(Node* input, Node* arg_count, Node* context) {
   // TODO(ishell): Use SelectBooleanConstant here.
   InterpreterAssembler::Variable return_value(assembler_,
                                               MachineRepresentation::kTagged);
   InterpreterAssembler::Label if_smi(assembler_), if_not_smi(assembler_),
       end(assembler_);
 
   Node* arg = __ LoadRegister(input);
 
   __ Branch(__ TaggedIsSmi(arg), &if_smi, &if_not_smi);
   __ Bind(&if_smi);
   {
     return_value.Bind(__ BooleanConstant(true));
     __ Goto(&end);
   }
 
   __ Bind(&if_not_smi);
   {
     return_value.Bind(__ BooleanConstant(false));
     __ Goto(&end);
   }
 
   __ Bind(&end);
   return return_value.value();
 }
 
-Node* IntrinsicsHelper::IntrinsicAsStubCall(Node* args_reg, Node* context,
-                                            Callable const& callable) {
+Node* IntrinsicsGenerator::IntrinsicAsStubCall(Node* args_reg, Node* context,
+                                               Callable const& callable) {
   int param_count = callable.descriptor().GetParameterCount();
   int input_count = param_count + 2;  // +2 for target and context
   Node** args = zone()->NewArray<Node*>(input_count);
   int index = 0;
   args[index++] = __ HeapConstant(callable.code());
   for (int i = 0; i < param_count; i++) {
     args[index++] = __ LoadRegister(args_reg);
     args_reg = __ NextRegister(args_reg);
   }
   args[index++] = context;
   return __ CallStubN(callable.descriptor(), 1, input_count, args);
 }
 
-Node* IntrinsicsHelper::CreateIterResultObject(Node* input, Node* arg_count,
-                                               Node* context) {
+Node* IntrinsicsGenerator::CreateIterResultObject(Node* input, Node* arg_count,
+                                                  Node* context) {
   return IntrinsicAsStubCall(input, context,
                              CodeFactory::CreateIterResultObject(isolate()));
 }
 
-Node* IntrinsicsHelper::HasProperty(Node* input, Node* arg_count,
-                                    Node* context) {
+Node* IntrinsicsGenerator::HasProperty(Node* input, Node* arg_count,
+                                       Node* context) {
   return IntrinsicAsStubCall(input, context,
                              CodeFactory::HasProperty(isolate()));
 }
 
-Node* IntrinsicsHelper::SubString(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::SubString(Node* input, Node* arg_count,
+                                     Node* context) {
   return IntrinsicAsStubCall(input, context, CodeFactory::SubString(isolate()));
 }
 
-Node* IntrinsicsHelper::ToString(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::ToString(Node* input, Node* arg_count,
+                                    Node* context) {
   return IntrinsicAsStubCall(input, context, CodeFactory::ToString(isolate()));
 }
 
-Node* IntrinsicsHelper::ToLength(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::ToLength(Node* input, Node* arg_count,
+                                    Node* context) {
   return IntrinsicAsStubCall(input, context, CodeFactory::ToLength(isolate()));
 }
 
-Node* IntrinsicsHelper::ToInteger(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::ToInteger(Node* input, Node* arg_count,
+                                     Node* context) {
   return IntrinsicAsStubCall(input, context, CodeFactory::ToInteger(isolate()));
 }
 
-Node* IntrinsicsHelper::ToNumber(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::ToNumber(Node* input, Node* arg_count,
+                                    Node* context) {
   return IntrinsicAsStubCall(input, context, CodeFactory::ToNumber(isolate()));
 }
 
-Node* IntrinsicsHelper::ToObject(Node* input, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::ToObject(Node* input, Node* arg_count,
+                                    Node* context) {
   return IntrinsicAsStubCall(input, context, CodeFactory::ToObject(isolate()));
 }
 
-Node* IntrinsicsHelper::Call(Node* args_reg, Node* arg_count, Node* context) {
+Node* IntrinsicsGenerator::Call(Node* args_reg, Node* arg_count,
+                                Node* context) {
   // First argument register contains the function target.
   Node* function = __ LoadRegister(args_reg);
 
   // Receiver is the second runtime call argument.
   Node* receiver_reg = __ NextRegister(args_reg);
   Node* receiver_arg = __ RegisterLocation(receiver_reg);
 
   // Subtract function and receiver from arg count.
   Node* function_and_receiver_count = __ Int32Constant(2);
   Node* target_args_count = __ Int32Sub(arg_count, function_and_receiver_count);
 
   if (FLAG_debug_code) {
     InterpreterAssembler::Label arg_count_positive(assembler_);
     Node* comparison = __ Int32LessThan(target_args_count, __ Int32Constant(0));
     __ GotoIfNot(comparison, &arg_count_positive);
     __ Abort(kWrongArgumentCountForInvokeIntrinsic);
     __ Goto(&arg_count_positive);
     __ Bind(&arg_count_positive);
   }
 
   Node* result = __ CallJS(function, context, receiver_arg, target_args_count,
                            TailCallMode::kDisallow);
   return result;
 }
 
-Node* IntrinsicsHelper::ClassOf(Node* args_reg, Node* arg_count,
-                                Node* context) {
+Node* IntrinsicsGenerator::ClassOf(Node* args_reg, Node* arg_count,
+                                   Node* context) {
   Node* value = __ LoadRegister(args_reg);
   return __ ClassOf(value);
 }
 
-Node* IntrinsicsHelper::CreateAsyncFromSyncIterator(Node* args_reg,
-                                                    Node* arg_count,
-                                                    Node* context) {
+Node* IntrinsicsGenerator::CreateAsyncFromSyncIterator(Node* args_reg,
+                                                       Node* arg_count,
+                                                       Node* context) {
   InterpreterAssembler::Label not_receiver(
       assembler_, InterpreterAssembler::Label::kDeferred);
   InterpreterAssembler::Label done(assembler_);
   InterpreterAssembler::Variable return_value(assembler_,
                                               MachineRepresentation::kTagged);
 
   Node* sync_iterator = __ LoadRegister(args_reg);
 
   __ GotoIf(__ TaggedIsSmi(sync_iterator), &not_receiver);
   __ GotoIfNot(__ IsJSReceiver(sync_iterator), &not_receiver);
@@ skipping 15 matching lines @@
         __ CallRuntime(Runtime::kThrowSymbolIteratorInvalid, context));
 
     // Unreachable due to the Throw in runtime call.
     __ Goto(&done);
   }
 
   __ Bind(&done);
   return return_value.value();
 }
 
-void IntrinsicsHelper::AbortIfArgCountMismatch(int expected, Node* actual) {
+void IntrinsicsGenerator::AbortIfArgCountMismatch(int expected, Node* actual) {
   InterpreterAssembler::Label match(assembler_);
   Node* comparison = __ Word32Equal(actual, __ Int32Constant(expected));
   __ GotoIf(comparison, &match);
   __ Abort(kWrongArgumentCountForInvokeIntrinsic);
   __ Goto(&match);
   __ Bind(&match);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8