[Interpreter] TurboFan implementation of intrinsics.

test/cctest/interpreter/interpreter-tester.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 "test/cctest/interpreter/interpreter-tester.h"
+
+namespace v8 {
+namespace internal {
+namespace interpreter {
+
+MaybeHandle<Object> CallInterpreter(Isolate* isolate,
+                                    Handle<JSFunction> function) {
+  return Execution::Call(isolate, function,
+                         isolate->factory()->undefined_value(), 0, nullptr);
+}
+
+InterpreterTester::InterpreterTester(
+    Isolate* isolate, const char* source, MaybeHandle<BytecodeArray> bytecode,
+    MaybeHandle<TypeFeedbackVector> feedback_vector, const char* filter)
+    : isolate_(isolate),
+      source_(source),
+      bytecode_(bytecode),
+      feedback_vector_(feedback_vector) {
+  i::FLAG_ignition = true;
+  i::FLAG_always_opt = false;
+  // Set ignition filter flag via SetFlagsFromString to avoid double-free
+  // (or potential leak with StrDup() based on ownership confusion).
+  ScopedVector<char> ignition_filter(64);
+  SNPrintF(ignition_filter, "--ignition-filter=%s", filter);
+  FlagList::SetFlagsFromString(ignition_filter.start(),
+                               ignition_filter.length());
+  // Ensure handler table is generated.
+  isolate->interpreter()->Initialize();
+}
+
+InterpreterTester::InterpreterTester(
+    Isolate* isolate, Handle<BytecodeArray> bytecode,
+    MaybeHandle<TypeFeedbackVector> feedback_vector, const char* filter)
+    : InterpreterTester(isolate, nullptr, bytecode, feedback_vector, filter) {}
+
+InterpreterTester::InterpreterTester(Isolate* isolate, const char* source,
+                                     const char* filter)
+    : InterpreterTester(isolate, source, MaybeHandle<BytecodeArray>(),
+                        MaybeHandle<TypeFeedbackVector>(), filter) {}
+
+InterpreterTester::~InterpreterTester() {}
+
+Local<Message> InterpreterTester::CheckThrowsReturnMessage() {
+  TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate_));
+  auto callable = GetCallable<>();
+  MaybeHandle<Object> no_result = callable();
+  CHECK(isolate_->has_pending_exception());
+  CHECK(try_catch.HasCaught());
+  CHECK(no_result.is_null());
+  isolate_->OptionalRescheduleException(true);
+  CHECK(!try_catch.Message().IsEmpty());
+  return try_catch.Message();
+}
+
+Handle<Object> InterpreterTester::NewObject(const char* script) {
+  return v8::Utils::OpenHandle(*CompileRun(script));
+}
+
+Handle<String> InterpreterTester::GetName(Isolate* isolate, const char* name) {
+  Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(name);
+  return isolate->factory()->string_table()->LookupString(isolate, result);
+}
+
+std::string InterpreterTester::SourceForBody(const char* body) {
+  return "function " + function_name() + "() {\n" + std::string(body) + "\n}";
+}
+
+std::string InterpreterTester::function_name() {
+  return std::string(kFunctionName);
+}
+
+}  // namespace interpreter
+}  // namespace internal
+}  // namespace v8