// 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 <cmath>

#include "src/api/api-inl.h"
#include "src/base/utils/random-number-generator.h"
#include "src/builtins/builtins-promise-gen.h"
#include "src/builtins/builtins-string-gen.h"
#include "src/codegen/code-factory.h"
#include "src/codegen/code-stub-assembler.h"
#include "src/compiler/node.h"
#include "src/debug/debug.h"
#include "src/execution/isolate.h"
#include "src/objects/elements-kind.h"
#include "src/objects/objects-inl.h"
#include "src/objects/promise-inl.h"
#include "src/objects/torque-defined-classes-inl.h"
#include "src/strings/char-predicates.h"
#include "test/cctest/compiler/function-tester.h"
#include "test/common/code-assembler-tester.h"

namespace v8 {
namespace internal {
namespace compiler {

namespace {

class TestTorqueAssembler : public CodeStubAssembler {
 public:
  explicit TestTorqueAssembler(CodeAssemblerState* state)
      : CodeStubAssembler(state) {}
};

}  // namespace

TEST(TestConstexpr1) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestConstexpr1();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestConstexprIf) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestConstexprIf();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestConstexprReturn) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestConstexprReturn();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestGotoLabel) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  { m.Return(m.TestGotoLabel()); }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.CheckCall(ft.true_value());
}

TEST(TestGotoLabelWithOneParameter) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  { m.Return(m.TestGotoLabelWithOneParameter()); }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.CheckCall(ft.true_value());
}

TEST(TestGotoLabelWithTwoParameters) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  { m.Return(m.TestGotoLabelWithTwoParameters()); }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.CheckCall(ft.true_value());
}

TEST(TestPartiallyUnusedLabel) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  { m.Return(m.TestPartiallyUnusedLabel()); }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.CheckCall(ft.true_value());
}

TEST(TestBuiltinSpecialization) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestBuiltinSpecialization();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestMacroSpecialization) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestMacroSpecialization();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestFunctionPointers) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    auto context = m.GetJSContextParameter();
    m.Return(m.TestFunctionPointers(context));
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.CheckCall(ft.true_value());
}

TEST(TestTernaryOperator) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 1;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    TNode<Smi> arg = m.Parameter<Smi>(1);
    m.Return(m.TestTernaryOperator(arg));
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  Handle<Object> result1 =
      ft.Call(Handle<Smi>(Smi::FromInt(-5), isolate)).ToHandleChecked();
  CHECK_EQ(-15, Handle<Smi>::cast(result1)->value());
  Handle<Object> result2 =
      ft.Call(Handle<Smi>(Smi::FromInt(3), isolate)).ToHandleChecked();
  CHECK_EQ(103, Handle<Smi>::cast(result2)->value());
}

TEST(TestFunctionPointerToGeneric) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestFunctionPointerToGeneric();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestUnsafeCast) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    TNode<Object> temp = m.SmiConstant(0);
    TNode<Smi> n = m.SmiConstant(10);
    m.Return(m.TestUnsafeCast(m.UncheckedCast<Context>(temp),
                              m.UncheckedCast<Number>(n)));
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.CheckCall(ft.true_value());
}

TEST(TestHexLiteral) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestHexLiteral();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestModuleConstBindings) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestModuleConstBindings();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestLocalConstBindings) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestLocalConstBindings();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestForLoop) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestForLoop();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestTypeswitch) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestTypeswitch(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestGenericOverload) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestGenericOverload(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestEquality) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestEquality(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestLogicalOperators) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestLogicalOperators();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestOtherwiseAndLabels) {
  Isolate* isolate(CcTest::InitIsolateOnce());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestOtherwiseWithCode1();
    m.TestOtherwiseWithCode2();
    m.TestOtherwiseWithCode3();
    m.TestForwardLabel();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestCatch1) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    TNode<Smi> result =
        m.TestCatch1(m.UncheckedCast<Context>(m.HeapConstant(context)));
    USE(result);
    CSA_DCHECK(&m, m.TaggedEqual(result, m.SmiConstant(1)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestCatch2) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    TNode<Smi> result =
        m.TestCatch2(m.UncheckedCast<Context>(m.HeapConstant(context)));
    USE(result);
    CSA_DCHECK(&m, m.TaggedEqual(result, m.SmiConstant(2)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestCatch3) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    TNode<Smi> result =
        m.TestCatch3(m.UncheckedCast<Context>(m.HeapConstant(context)));
    USE(result);
    CSA_DCHECK(&m, m.TaggedEqual(result, m.SmiConstant(2)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestLookup) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestQualifiedAccess(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestFrame1) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestFrame1(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestNew) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestNew(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestStructConstructor) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestStructConstructor(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestInternalClass) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestInternalClass(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestNewFixedArrayFromSpread) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestNewFixedArrayFromSpread(
        m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestReferences) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestReferences();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestSlices) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestSlices();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestSliceEnumeration) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestSliceEnumeration(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestStaticAssert) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestStaticAssert();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestLoadEliminationFixed) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestLoadEliminationFixed(
        m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  asm_tester.GenerateCode();
}

TEST(TestLoadEliminationVariable) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestLoadEliminationVariable(
        m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  asm_tester.GenerateCode();
}

TEST(TestRedundantArrayElementCheck) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.Return(m.TestRedundantArrayElementCheck(
        m.UncheckedCast<Context>(m.HeapConstant(context))));
  }
  asm_tester.GenerateCode();
}

TEST(TestRedundantSmiCheck) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.Return(m.TestRedundantSmiCheck(
        m.UncheckedCast<Context>(m.HeapConstant(context))));
  }
  asm_tester.GenerateCode();
}

TEST(TestGenericStruct1) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestGenericStruct1();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestGenericStruct2) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  CodeAssemblerTester asm_tester(isolate);
  TestTorqueAssembler m(asm_tester.state());
  { m.Return(m.TestGenericStruct2().snd.fst); }
  FunctionTester ft(asm_tester.GenerateCode(), 0);
  ft.Call();
}

TEST(TestBranchOnBoolOptimization) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestBranchOnBoolOptimization(
        m.UncheckedCast<Context>(m.HeapConstant(context)),
        m.UncheckedParameter<Smi>(0));
    m.Return(m.UndefinedConstant());
  }
  asm_tester.GenerateCode();
}

TEST(TestBitFieldLoad) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 5;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    // Untag all of the parameters to get plain integer values.
    TNode<Uint8T> val =
        m.UncheckedCast<Uint8T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
    TNode<BoolT> expected_a =
        m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2))));
    TNode<Uint16T> expected_b =
        m.UncheckedCast<Uint16T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(3))));
    TNode<Uint32T> expected_c =
        m.UncheckedCast<Uint32T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(4))));
    TNode<BoolT> expected_d =
        m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(5))));

    // Call the Torque-defined macro, which verifies that reading each bitfield
    // out of val yields the correct result.
    m.TestBitFieldLoad(val, expected_a, expected_b, expected_c, expected_d);
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);

  // Test every possible bit combination for this 8-bit value.
  for (int a = 0; a <= 1; ++a) {
    for (int b = 0; b <= 7; ++b) {
      for (int c = 0; c <= 7; ++c) {
        for (int d = 0; d <= 1; ++d) {
          int val = a | ((b & 7) << 1) | (c << 4) | (d << 7);
          ft.Call(ft.Val(val), ft.Val(a), ft.Val(b), ft.Val(c), ft.Val(d));
        }
      }
    }
  }
}

TEST(TestBitFieldStore) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 1;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    // Untag the parameters to get a plain integer value.
    TNode<Uint8T> val =
        m.UncheckedCast<Uint8T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));

    m.TestBitFieldStore(val);
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);

  // Test every possible bit combination for this 8-bit value.
  for (int i = 0; i < 256; ++i) {
    ft.Call(ft.Val(i));
  }
}

TEST(TestBitFieldInit) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 4;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    // Untag all of the parameters to get plain integer values.
    TNode<BoolT> a =
        m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
    TNode<Uint16T> b =
        m.UncheckedCast<Uint16T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2))));
    TNode<Uint32T> c =
        m.UncheckedCast<Uint32T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(3))));
    TNode<BoolT> d =
        m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(4))));

    // Call the Torque-defined macro, which verifies that reading each bitfield
    // out of val yields the correct result.
    m.TestBitFieldInit(a, b, c, d);
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);

  // Test every possible bit combination for this 8-bit value.
  for (int a = 0; a <= 1; ++a) {
    for (int b = 0; b <= 7; ++b) {
      for (int c = 0; c <= 7; ++c) {
        for (int d = 0; d <= 1; ++d) {
          ft.Call(ft.Val(a), ft.Val(b), ft.Val(c), ft.Val(d));
        }
      }
    }
  }
}

TEST(TestBitFieldUintptrOps) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 2;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    // Untag the parameters to get a plain integer value.
    TNode<Uint32T> val2 =
        m.UncheckedCast<Uint32T>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(1))));
    TNode<UintPtrT> val3 = m.UncheckedCast<UintPtrT>(
        m.ChangeUint32ToWord(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2)))));

    m.TestBitFieldUintptrOps(val2, val3);
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);

  // Construct the expected test values.
  int val2 = 3 | (61 << 5);
  int val3 = 1 | (500 << 1) | (0x1cc << 10);

  ft.Call(ft.Val(val2), ft.Val(val3));
}

TEST(TestBitFieldMultipleFlags) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 3;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    TNode<BoolT> a =
        m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(0))));
    TNode<Int32T> b = m.SmiToInt32(m.Parameter<Smi>(1));
    TNode<BoolT> c =
        m.UncheckedCast<BoolT>(m.Unsigned(m.SmiToInt32(m.Parameter<Smi>(2))));
    m.TestBitFieldMultipleFlags(a, b, c);
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  // No need to call it; we just checked StaticAsserts during compilation.
}

TEST(TestTestParentFrameArguments) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  Handle<Context> context =
      Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestParentFrameArguments(
        m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  asm_tester.GenerateCode();
}

TEST(TestFullyGeneratedClassFromCpp) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  { m.Return(m.TestFullyGeneratedClassFromCpp()); }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  Handle<ExportedSubClass> result =
      Handle<ExportedSubClass>::cast(ft.Call().ToHandleChecked());
  CHECK_EQ(result->c_field(), 7);
  CHECK_EQ(result->d_field(), 8);
  CHECK_EQ(result->e_field(), 9);
}

TEST(TestFullyGeneratedClassWithElements) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestFullyGeneratedClassWithElements();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestGeneratedCastOperators) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    Handle<Context> context =
        Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
    m.TestGeneratedCastOperators(
        m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestNewPretenured) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    Handle<Context> context =
        Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
    m.TestNewPretenured(m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestWord8Phi) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestWord8Phi();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestOffHeapSlice) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  std::string data = "Hello World!";
  {
    m.TestOffHeapSlice(m.PointerConstant(const_cast<char*>(data.data())),
                       m.IntPtrConstant(data.size()));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestCallMultiReturnBuiltin) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 1;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    Handle<Context> context =
        Utils::OpenHandle(*v8::Isolate::GetCurrent()->GetCurrentContext());
    m.TestCallMultiReturnBuiltin(
        m.UncheckedCast<Context>(m.HeapConstant(context)));
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestRunLazyTwice) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  int lazyNumber = 3;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    CodeStubAssembler::LazyNode<Smi> lazy = [&]() {
      return m.SmiConstant(lazyNumber++);
    };
    m.Return(m.TestRunLazyTwice(lazy));
  }
  CHECK_EQ(lazyNumber, 5);
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  Handle<Object> result = ft.Call().ToHandleChecked();
  CHECK_EQ(7, Handle<Smi>::cast(result)->value());
}

TEST(TestCreateLazyNodeFromTorque) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    m.TestCreateLazyNodeFromTorque();
    m.Return(m.UndefinedConstant());
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  ft.Call();
}

TEST(TestReturnNever_NotCalled) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    auto context = m.GetJSContextParameter();
    TNode<Smi> arg = m.SmiConstant(42);
    TNode<Object> result = m.CallBuiltin(Builtin::kTestCallNever, context, arg);
    m.Return(result);
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  Handle<Object> result = ft.Call().ToHandleChecked();
  CHECK_EQ(42, Handle<Smi>::cast(result)->value());
}

// Test calling a builtin that calls a runtime fct with return type {never}.
TEST(TestReturnNever_Runtime_Called) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    auto context = m.GetJSContextParameter();
    TNode<Smi> arg = m.SmiConstant(1);
    TNode<Object> result = m.CallBuiltin(Builtin::kTestCallNever, context, arg);
    m.Return(result);
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  MaybeHandle<Object> result = ft.Call();
  CHECK(result.is_null());
  CHECK(isolate->has_pending_exception());
}

// Test calling a builtin that calls another builtin with return type {never}.
TEST(TestReturnNever_Builtin_Called) {
  CcTest::InitializeVM();
  Isolate* isolate(CcTest::i_isolate());
  i::HandleScope scope(isolate);
  const int kNumParams = 0;
  CodeAssemblerTester asm_tester(isolate, JSParameterCount(kNumParams));
  TestTorqueAssembler m(asm_tester.state());
  {
    auto context = m.GetJSContextParameter();
    TNode<Smi> arg = m.SmiConstant(-1);
    TNode<Object> result = m.CallBuiltin(Builtin::kTestCallNever, context, arg);
    m.Return(result);
  }
  FunctionTester ft(asm_tester.GenerateCode(), kNumParams);
  MaybeHandle<Object> result = ft.Call();
  CHECK(result.is_null());
  CHECK(isolate->has_pending_exception());
}

}  // namespace compiler
}  // namespace internal
}  // namespace v8