test/cctest/wasm/test-run-wasm-module.cc - v8/v8 - Git at Google

 // 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 <stdlib.h>
 #include <string.h>

 #include "src/wasm/module-decoder.h"
 #include "src/wasm/wasm-macro-gen.h"
 #include "src/wasm/wasm-module-builder.h"
 #include "src/wasm/wasm-module.h"
 #include "src/wasm/wasm-opcodes.h"

 #include "test/cctest/cctest.h"
 #include "test/common/wasm/test-signatures.h"
 #include "test/common/wasm/wasm-module-runner.h"

 using namespace v8::base;
 using namespace v8::internal;
 using namespace v8::internal::compiler;
 using namespace v8::internal::wasm;

 namespace {
 void TestModule(Zone* zone, WasmModuleBuilder* builder,
                 int32_t expected_result) {
   ZoneBuffer buffer(zone);
   builder->WriteTo(buffer);

   Isolate* isolate = CcTest::InitIsolateOnce();
   HandleScope scope(isolate);
   testing::SetupIsolateForWasmModule(isolate);
   int32_t result = testing::CompileAndRunWasmModule(
       isolate, buffer.begin(), buffer.end(), ModuleOrigin::kWasmOrigin);
   CHECK_EQ(expected_result, result);
 }

 void TestModuleException(Zone* zone, WasmModuleBuilder* builder) {
   ZoneBuffer buffer(zone);
   builder->WriteTo(buffer);

   Isolate* isolate = CcTest::InitIsolateOnce();
   HandleScope scope(isolate);
   testing::SetupIsolateForWasmModule(isolate);
   v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
   testing::CompileAndRunWasmModule(isolate, buffer.begin(), buffer.end(),
                                    ModuleOrigin::kWasmOrigin);
   CHECK(try_catch.HasCaught());
   isolate->clear_pending_exception();
 }

 void ExportAsMain(WasmFunctionBuilder* f) { f->ExportAs(CStrVector("main")); }

 }  // namespace

 TEST(Run_WasmModule_Return114) {
   static const int32_t kReturnValue = 114;
   TestSignatures sigs;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {WASM_I8(kReturnValue)};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, kReturnValue);
 }

 TEST(Run_WasmModule_CallAdd) {
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);

   WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_ii());
   uint16_t param1 = 0;
   uint16_t param2 = 1;
   byte code1[] = {WASM_I32_ADD(WASM_GET_LOCAL(param1), WASM_GET_LOCAL(param2))};
   f1->EmitCode(code1, sizeof(code1));

   WasmFunctionBuilder* f2 = builder->AddFunction(sigs.i_v());

   ExportAsMain(f2);
   byte code2[] = {
       WASM_CALL_FUNCTION(f1->func_index(), WASM_I8(77), WASM_I8(22))};
   f2->EmitCode(code2, sizeof(code2));
   TestModule(&zone, builder, 99);
 }

 TEST(Run_WasmModule_ReadLoadedDataSegment) {
   static const byte kDataSegmentDest0 = 12;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());

   ExportAsMain(f);
   byte code[] = {
       WASM_LOAD_MEM(MachineType::Int32(), WASM_I8(kDataSegmentDest0))};
   f->EmitCode(code, sizeof(code));
   byte data[] = {0xaa, 0xbb, 0xcc, 0xdd};
   builder->AddDataSegment(data, sizeof(data), kDataSegmentDest0);
   TestModule(&zone, builder, 0xddccbbaa);
 }

 TEST(Run_WasmModule_CheckMemoryIsZero) {
   static const int kCheckSize = 16 * 1024;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());

   uint16_t localIndex = f->AddLocal(kAstI32);
   ExportAsMain(f);
   byte code[] = {WASM_BLOCK_I(
       WASM_WHILE(
           WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I32V_3(kCheckSize)),
           WASM_IF_ELSE(
               WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(localIndex)),
               WASM_BRV(3, WASM_I8(-1)), WASM_INC_LOCAL_BY(localIndex, 4))),
       WASM_I8(11))};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, 11);
 }

 TEST(Run_WasmModule_CallMain_recursive) {
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());

   uint16_t localIndex = f->AddLocal(kAstI32);
   ExportAsMain(f);
   byte code[] = {
       WASM_SET_LOCAL(localIndex,
                      WASM_LOAD_MEM(MachineType::Int32(), WASM_ZERO)),
       WASM_IF_ELSE_I(WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I8(5)),
                      WASM_SEQ(WASM_STORE_MEM(MachineType::Int32(), WASM_ZERO,
                                              WASM_INC_LOCAL(localIndex)),
                               WASM_CALL_FUNCTION0(0)),
                      WASM_I8(55))};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, 55);
 }

 TEST(Run_WasmModule_Global) {
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint32_t global1 = builder->AddGlobal(kAstI32, 0);
   uint32_t global2 = builder->AddGlobal(kAstI32, 0);
   WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_v());
   byte code1[] = {
       WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
   f1->EmitCode(code1, sizeof(code1));
   WasmFunctionBuilder* f2 = builder->AddFunction(sigs.i_v());
   ExportAsMain(f2);
   byte code2[] = {WASM_SET_GLOBAL(global1, WASM_I32V_1(56)),
                   WASM_SET_GLOBAL(global2, WASM_I32V_1(41)),
                   WASM_RETURN1(WASM_CALL_FUNCTION0(f1->func_index()))};
   f2->EmitCode(code2, sizeof(code2));
   TestModule(&zone, builder, 97);
 }

 TEST(Run_WasmModule_Serialization) {
   static const char* kFunctionName = "increment";
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   TestSignatures sigs;

   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
   byte code[] = {WASM_GET_LOCAL(0), kExprI32Const, 1, kExprI32Add};
   f->EmitCode(code, sizeof(code));
   f->ExportAs(CStrVector(kFunctionName));

   ZoneBuffer buffer(&zone);
   builder->WriteTo(buffer);

   Isolate* isolate = CcTest::InitIsolateOnce();
   ErrorThrower thrower(isolate, "");
   uint8_t* bytes = nullptr;
   size_t bytes_size = 0;
   v8::WasmCompiledModule::SerializedModule data;
   {
     HandleScope scope(isolate);
     testing::SetupIsolateForWasmModule(isolate);

     ModuleResult decoding_result = DecodeWasmModule(
         isolate, &zone, buffer.begin(), buffer.end(), false, kWasmOrigin);
     std::unique_ptr<const WasmModule> module(decoding_result.val);
     CHECK(!decoding_result.failed());

     MaybeHandle<WasmCompiledModule> compiled_module =
         module->CompileFunctions(isolate, &thrower);
     CHECK(!compiled_module.is_null());
     Handle<JSObject> module_obj = CreateCompiledModuleObject(
         isolate, compiled_module.ToHandleChecked(), ModuleOrigin::kWasmOrigin);
     v8::Local<v8::Object> v8_module_obj = v8::Utils::ToLocal(module_obj);
     CHECK(v8_module_obj->IsWebAssemblyCompiledModule());

     v8::Local<v8::WasmCompiledModule> v8_compiled_module =
         v8_module_obj.As<v8::WasmCompiledModule>();
     v8::Local<v8::String> uncompiled_bytes =
         v8_compiled_module->GetUncompiledBytes();
     bytes_size = static_cast<size_t>(uncompiled_bytes->Length());
     bytes = zone.NewArray<uint8_t>(uncompiled_bytes->Length());
     uncompiled_bytes->WriteOneByte(bytes);
     data = v8_compiled_module->Serialize();
   }

   v8::WasmCompiledModule::UncompiledBytes uncompressed_bytes = {
       std::unique_ptr<const uint8_t[]>(const_cast<const uint8_t*>(bytes)),
       bytes_size};

   v8::Isolate::CreateParams create_params;
   create_params.array_buffer_allocator =
       CcTest::InitIsolateOnce()->array_buffer_allocator();

   for (int i = 0; i < 2; ++i) {
     v8::Isolate* v8_isolate = v8::Isolate::New(create_params);
     if (i == 1) {
       // Mess with the serialized data to force recompilation.
       data.first.reset();
       data.second = 0;
     }
     {
       v8::Isolate::Scope isolate_scope(v8_isolate);
       v8::HandleScope new_scope(v8_isolate);
       v8::Local<v8::Context> new_ctx = v8::Context::New(v8_isolate);
       new_ctx->Enter();
       isolate = reinterpret_cast<Isolate*>(v8_isolate);
       testing::SetupIsolateForWasmModule(isolate);
       v8::MaybeLocal<v8::WasmCompiledModule> deserialized =
           v8::WasmCompiledModule::DeserializeOrCompile(v8_isolate, data,
                                                        uncompressed_bytes);
       v8::Local<v8::WasmCompiledModule> compiled_module;
       CHECK(deserialized.ToLocal(&compiled_module));
       Handle<JSObject> module_object =
           Handle<JSObject>::cast(v8::Utils::OpenHandle(*compiled_module));
       Handle<JSObject> instance =
           WasmModule::Instantiate(isolate, &thrower, module_object,
                                   Handle<JSReceiver>::null(),
                                   Handle<JSArrayBuffer>::null())
               .ToHandleChecked();
       Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(41), isolate)};
       int32_t result = testing::CallWasmFunctionForTesting(
           isolate, instance, &thrower, kFunctionName, 1, params,
           ModuleOrigin::kWasmOrigin);
       CHECK(result == 42);
       new_ctx->Exit();
     }
     v8_isolate->Dispose();
   }
   // Release, because we allocated the bytes with the zone allocator, and
   // that doesn't have a delete.
   uncompressed_bytes.first.release();
 }

 TEST(MemorySize) {
   // Initial memory size is 16, see wasm-module-builder.cc
   static const int kExpectedValue = 16;
   TestSignatures sigs;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {WASM_MEMORY_SIZE};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, kExpectedValue);
 }

 TEST(Run_WasmModule_MemSize_GrowMem) {
   // Initial memory size = 16 + GrowMemory(10)
   static const int kExpectedValue = 26;
   TestSignatures sigs;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {WASM_GROW_MEMORY(WASM_I8(10)), WASM_DROP, WASM_MEMORY_SIZE};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, kExpectedValue);
 }

 TEST(GrowMemoryZero) {
   // Initial memory size is 16, see wasm-module-builder.cc
   static const int kExpectedValue = 16;
   TestSignatures sigs;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {WASM_GROW_MEMORY(WASM_I32V(0))};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, kExpectedValue);
 }

 TEST(Run_WasmModule_GrowMemoryInIf) {
   TestSignatures sigs;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {WASM_IF_ELSE_I(WASM_I32V(0), WASM_GROW_MEMORY(WASM_I32V(1)),
                                 WASM_I32V(12))};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, 12);
 }

 TEST(Run_WasmModule_GrowMemOobOffset) {
   static const int kPageSize = 0x10000;
   // Initial memory size = 16 + GrowMemory(10)
   static const int index = kPageSize * 17 + 4;
   int value = 0xaced;
   TestSignatures sigs;
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {
       WASM_GROW_MEMORY(WASM_I8(1)),
       WASM_STORE_MEM(MachineType::Int32(), WASM_I32V(index), WASM_I32V(value))};
   f->EmitCode(code, sizeof(code));
   TestModuleException(&zone, builder);
 }

 TEST(Run_WasmModule_GrowMemOobFixedIndex) {
   static const int kPageSize = 0x10000;
   // Initial memory size = 16 + GrowMemory(10)
   static const int index = kPageSize * 26 + 4;
   int value = 0xaced;
   TestSignatures sigs;
   Isolate* isolate = CcTest::InitIsolateOnce();
   Zone zone(isolate->allocator());

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
   ExportAsMain(f);
   byte code[] = {
       WASM_GROW_MEMORY(WASM_GET_LOCAL(0)), WASM_DROP,
       WASM_STORE_MEM(MachineType::Int32(), WASM_I32V(index), WASM_I32V(value)),
       WASM_LOAD_MEM(MachineType::Int32(), WASM_I32V(index))};
   f->EmitCode(code, sizeof(code));

   HandleScope scope(isolate);
   ZoneBuffer buffer(&zone);
   builder->WriteTo(buffer);
   testing::SetupIsolateForWasmModule(isolate);

   Handle<JSObject> instance = testing::CompileInstantiateWasmModuleForTesting(
       isolate, &zone, buffer.begin(), buffer.end(), ModuleOrigin::kWasmOrigin);
   CHECK(!instance.is_null());

   // Initial memory size is 16 pages, should trap till index > MemSize on
   // consecutive GrowMem calls
   for (uint32_t i = 1; i < 5; i++) {
     Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(i), isolate)};
     v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
     testing::RunWasmModuleForTesting(isolate, instance, 1, params,
                                      ModuleOrigin::kWasmOrigin);
     CHECK(try_catch.HasCaught());
     isolate->clear_pending_exception();
   }

   Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(1), isolate)};
   int32_t result = testing::RunWasmModuleForTesting(
       isolate, instance, 1, params, ModuleOrigin::kWasmOrigin);
   CHECK(result == 0xaced);
 }

 TEST(Run_WasmModule_GrowMemOobVariableIndex) {
   static const int kPageSize = 0x10000;
   int value = 0xaced;
   TestSignatures sigs;
   Isolate* isolate = CcTest::InitIsolateOnce();
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
   ExportAsMain(f);
   byte code[] = {
       WASM_GROW_MEMORY(WASM_I8(1)), WASM_DROP,
       WASM_STORE_MEM(MachineType::Int32(), WASM_GET_LOCAL(0), WASM_I32V(value)),
       WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(0))};
   f->EmitCode(code, sizeof(code));

   HandleScope scope(isolate);
   ZoneBuffer buffer(&zone);
   builder->WriteTo(buffer);
   testing::SetupIsolateForWasmModule(isolate);

   Handle<JSObject> instance = testing::CompileInstantiateWasmModuleForTesting(
       isolate, &zone, buffer.begin(), buffer.end(), ModuleOrigin::kWasmOrigin);

   CHECK(!instance.is_null());

   // Initial memory size is 16 pages, should trap till index > MemSize on
   // consecutive GrowMem calls
   for (int i = 1; i < 5; i++) {
     Handle<Object> params[1] = {
         Handle<Object>(Smi::FromInt((16 + i) * kPageSize - 3), isolate)};
     v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
     testing::RunWasmModuleForTesting(isolate, instance, 1, params,
                                      ModuleOrigin::kWasmOrigin);
     CHECK(try_catch.HasCaught());
     isolate->clear_pending_exception();
   }

   for (int i = 1; i < 5; i++) {
     Handle<Object> params[1] = {
         Handle<Object>(Smi::FromInt((20 + i) * kPageSize - 4), isolate)};
     int32_t result = testing::RunWasmModuleForTesting(
         isolate, instance, 1, params, ModuleOrigin::kWasmOrigin);
     CHECK(result == 0xaced);
   }

   v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
   Handle<Object> params[1] = {
       Handle<Object>(Smi::FromInt(25 * kPageSize), isolate)};
   testing::RunWasmModuleForTesting(isolate, instance, 1, params,
                                    ModuleOrigin::kWasmOrigin);
   CHECK(try_catch.HasCaught());
   isolate->clear_pending_exception();
 }

 TEST(Run_WasmModule_Global_init) {
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint32_t global1 =
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(777777));
   uint32_t global2 =
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(222222));
   WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_v());
   byte code[] = {
       WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
   f1->EmitCode(code, sizeof(code));
   ExportAsMain(f1);
   TestModule(&zone, builder, 999999);
 }

 template <typename CType>
 static void RunWasmModuleGlobalInitTest(LocalType type, CType expected) {
   v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
   TestSignatures sigs;

   LocalType types[] = {type};
   FunctionSig sig(1, 0, types);

   for (int padding = 0; padding < 5; padding++) {
     // Test with a simple initializer
     WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);

     for (int i = 0; i < padding; i++) {  // pad global before
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 20000));
     }
     uint32_t global =
         builder->AddGlobal(type, false, false, WasmInitExpr(expected));
     for (int i = 0; i < padding; i++) {  // pad global after
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 30000));
     }

     WasmFunctionBuilder* f1 = builder->AddFunction(&sig);
     byte code[] = {WASM_GET_GLOBAL(global)};
     f1->EmitCode(code, sizeof(code));
     ExportAsMain(f1);
     TestModule(&zone, builder, expected);
   }

   for (int padding = 0; padding < 5; padding++) {
     // Test with a global index
     WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
     for (int i = 0; i < padding; i++) {  // pad global before
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 40000));
     }

     uint32_t global1 =
         builder->AddGlobal(type, false, false, WasmInitExpr(expected));

     for (int i = 0; i < padding; i++) {  // pad global middle
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 50000));
     }

     uint32_t global2 = builder->AddGlobal(
         type, false, false, WasmInitExpr(WasmInitExpr::kGlobalIndex, global1));

     for (int i = 0; i < padding; i++) {  // pad global after
       builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 60000));
     }

     WasmFunctionBuilder* f1 = builder->AddFunction(&sig);
     byte code[] = {WASM_GET_GLOBAL(global2)};
     f1->EmitCode(code, sizeof(code));
     ExportAsMain(f1);
     TestModule(&zone, builder, expected);
   }
 }

 TEST(Run_WasmModule_Global_i32) {
   RunWasmModuleGlobalInitTest<int32_t>(kAstI32, -983489);
   RunWasmModuleGlobalInitTest<int32_t>(kAstI32, 11223344);
 }

 TEST(Run_WasmModule_Global_f32) {
   RunWasmModuleGlobalInitTest<float>(kAstF32, -983.9f);
   RunWasmModuleGlobalInitTest<float>(kAstF32, 1122.99f);
 }

 TEST(Run_WasmModule_Global_f64) {
   RunWasmModuleGlobalInitTest<double>(kAstF64, -833.9);
   RunWasmModuleGlobalInitTest<double>(kAstF64, 86374.25);
 }
	// 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 <stdlib.h>
	#include <string.h>

	#include "src/wasm/module-decoder.h"
	#include "src/wasm/wasm-macro-gen.h"
	#include "src/wasm/wasm-module-builder.h"
	#include "src/wasm/wasm-module.h"
	#include "src/wasm/wasm-opcodes.h"

	#include "test/cctest/cctest.h"
	#include "test/common/wasm/test-signatures.h"
	#include "test/common/wasm/wasm-module-runner.h"

	using namespace v8::base;
	using namespace v8::internal;
	using namespace v8::internal::compiler;
	using namespace v8::internal::wasm;

	namespace {
	void TestModule(Zone* zone, WasmModuleBuilder* builder,
	int32_t expected_result) {
	ZoneBuffer buffer(zone);
	builder->WriteTo(buffer);

	Isolate* isolate = CcTest::InitIsolateOnce();
	HandleScope scope(isolate);
	testing::SetupIsolateForWasmModule(isolate);
	int32_t result = testing::CompileAndRunWasmModule(
	isolate, buffer.begin(), buffer.end(), ModuleOrigin::kWasmOrigin);
	CHECK_EQ(expected_result, result);
	}

	void TestModuleException(Zone* zone, WasmModuleBuilder* builder) {
	ZoneBuffer buffer(zone);
	builder->WriteTo(buffer);

	Isolate* isolate = CcTest::InitIsolateOnce();
	HandleScope scope(isolate);
	testing::SetupIsolateForWasmModule(isolate);
	v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
	testing::CompileAndRunWasmModule(isolate, buffer.begin(), buffer.end(),
	ModuleOrigin::kWasmOrigin);
	CHECK(try_catch.HasCaught());
	isolate->clear_pending_exception();
	}

	void ExportAsMain(WasmFunctionBuilder* f) { f->ExportAs(CStrVector("main")); }

	} // namespace

	TEST(Run_WasmModule_Return114) {
	static const int32_t kReturnValue = 114;
	TestSignatures sigs;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
	ExportAsMain(f);
	byte code[] = {WASM_I8(kReturnValue)};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, kReturnValue);
	}

	TEST(Run_WasmModule_CallAdd) {
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);

	WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_ii());
	uint16_t param1 = 0;
	uint16_t param2 = 1;
	byte code1[] = {WASM_I32_ADD(WASM_GET_LOCAL(param1), WASM_GET_LOCAL(param2))};
	f1->EmitCode(code1, sizeof(code1));

	WasmFunctionBuilder* f2 = builder->AddFunction(sigs.i_v());

	ExportAsMain(f2);
	byte code2[] = {
	WASM_CALL_FUNCTION(f1->func_index(), WASM_I8(77), WASM_I8(22))};
	f2->EmitCode(code2, sizeof(code2));
	TestModule(&zone, builder, 99);
	}

	TEST(Run_WasmModule_ReadLoadedDataSegment) {
	static const byte kDataSegmentDest0 = 12;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());

	ExportAsMain(f);
	byte code[] = {
	WASM_LOAD_MEM(MachineType::Int32(), WASM_I8(kDataSegmentDest0))};
	f->EmitCode(code, sizeof(code));
	byte data[] = {0xaa, 0xbb, 0xcc, 0xdd};
	builder->AddDataSegment(data, sizeof(data), kDataSegmentDest0);
	TestModule(&zone, builder, 0xddccbbaa);
	}

	TEST(Run_WasmModule_CheckMemoryIsZero) {
	static const int kCheckSize = 16 * 1024;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());

	uint16_t localIndex = f->AddLocal(kAstI32);
	ExportAsMain(f);
	byte code[] = {WASM_BLOCK_I(
	WASM_WHILE(
	WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I32V_3(kCheckSize)),
	WASM_IF_ELSE(
	WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(localIndex)),
	WASM_BRV(3, WASM_I8(-1)), WASM_INC_LOCAL_BY(localIndex, 4))),
	WASM_I8(11))};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, 11);
	}

	TEST(Run_WasmModule_CallMain_recursive) {
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());

	uint16_t localIndex = f->AddLocal(kAstI32);
	ExportAsMain(f);
	byte code[] = {
	WASM_SET_LOCAL(localIndex,
	WASM_LOAD_MEM(MachineType::Int32(), WASM_ZERO)),
	WASM_IF_ELSE_I(WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I8(5)),
	WASM_SEQ(WASM_STORE_MEM(MachineType::Int32(), WASM_ZERO,
	WASM_INC_LOCAL(localIndex)),
	WASM_CALL_FUNCTION0(0)),
	WASM_I8(55))};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, 55);
	}

	TEST(Run_WasmModule_Global) {
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	uint32_t global1 = builder->AddGlobal(kAstI32, 0);
	uint32_t global2 = builder->AddGlobal(kAstI32, 0);
	WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_v());
	byte code1[] = {
	WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
	f1->EmitCode(code1, sizeof(code1));
	WasmFunctionBuilder* f2 = builder->AddFunction(sigs.i_v());
	ExportAsMain(f2);
	byte code2[] = {WASM_SET_GLOBAL(global1, WASM_I32V_1(56)),
	WASM_SET_GLOBAL(global2, WASM_I32V_1(41)),
	WASM_RETURN1(WASM_CALL_FUNCTION0(f1->func_index()))};
	f2->EmitCode(code2, sizeof(code2));
	TestModule(&zone, builder, 97);
	}

	TEST(Run_WasmModule_Serialization) {
	static const char* kFunctionName = "increment";
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	TestSignatures sigs;

	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
	byte code[] = {WASM_GET_LOCAL(0), kExprI32Const, 1, kExprI32Add};
	f->EmitCode(code, sizeof(code));
	f->ExportAs(CStrVector(kFunctionName));

	ZoneBuffer buffer(&zone);
	builder->WriteTo(buffer);

	Isolate* isolate = CcTest::InitIsolateOnce();
	ErrorThrower thrower(isolate, "");
	uint8_t* bytes = nullptr;
	size_t bytes_size = 0;
	v8::WasmCompiledModule::SerializedModule data;
	{
	HandleScope scope(isolate);
	testing::SetupIsolateForWasmModule(isolate);

	ModuleResult decoding_result = DecodeWasmModule(
	isolate, &zone, buffer.begin(), buffer.end(), false, kWasmOrigin);
	std::unique_ptr<const WasmModule> module(decoding_result.val);
	CHECK(!decoding_result.failed());

	MaybeHandle<WasmCompiledModule> compiled_module =
	module->CompileFunctions(isolate, &thrower);
	CHECK(!compiled_module.is_null());
	Handle<JSObject> module_obj = CreateCompiledModuleObject(
	isolate, compiled_module.ToHandleChecked(), ModuleOrigin::kWasmOrigin);
	v8::Local<v8::Object> v8_module_obj = v8::Utils::ToLocal(module_obj);
	CHECK(v8_module_obj->IsWebAssemblyCompiledModule());

	v8::Local<v8::WasmCompiledModule> v8_compiled_module =
	v8_module_obj.As<v8::WasmCompiledModule>();
	v8::Local<v8::String> uncompiled_bytes =
	v8_compiled_module->GetUncompiledBytes();
	bytes_size = static_cast<size_t>(uncompiled_bytes->Length());
	bytes = zone.NewArray<uint8_t>(uncompiled_bytes->Length());
	uncompiled_bytes->WriteOneByte(bytes);
	data = v8_compiled_module->Serialize();
	}

	v8::WasmCompiledModule::UncompiledBytes uncompressed_bytes = {
	std::unique_ptr<const uint8_t[]>(const_cast<const uint8_t*>(bytes)),
	bytes_size};

	v8::Isolate::CreateParams create_params;
	create_params.array_buffer_allocator =
	CcTest::InitIsolateOnce()->array_buffer_allocator();

	for (int i = 0; i < 2; ++i) {
	v8::Isolate* v8_isolate = v8::Isolate::New(create_params);
	if (i == 1) {
	// Mess with the serialized data to force recompilation.
	data.first.reset();
	data.second = 0;
	}
	{
	v8::Isolate::Scope isolate_scope(v8_isolate);
	v8::HandleScope new_scope(v8_isolate);
	v8::Local<v8::Context> new_ctx = v8::Context::New(v8_isolate);
	new_ctx->Enter();
	isolate = reinterpret_cast<Isolate*>(v8_isolate);
	testing::SetupIsolateForWasmModule(isolate);
	v8::MaybeLocal<v8::WasmCompiledModule> deserialized =
	v8::WasmCompiledModule::DeserializeOrCompile(v8_isolate, data,
	uncompressed_bytes);
	v8::Local<v8::WasmCompiledModule> compiled_module;
	CHECK(deserialized.ToLocal(&compiled_module));
	Handle<JSObject> module_object =
	Handle<JSObject>::cast(v8::Utils::OpenHandle(*compiled_module));
	Handle<JSObject> instance =
	WasmModule::Instantiate(isolate, &thrower, module_object,
	Handle<JSReceiver>::null(),
	Handle<JSArrayBuffer>::null())
	.ToHandleChecked();
	Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(41), isolate)};
	int32_t result = testing::CallWasmFunctionForTesting(
	isolate, instance, &thrower, kFunctionName, 1, params,
	ModuleOrigin::kWasmOrigin);
	CHECK(result == 42);
	new_ctx->Exit();
	}
	v8_isolate->Dispose();
	}
	// Release, because we allocated the bytes with the zone allocator, and
	// that doesn't have a delete.
	uncompressed_bytes.first.release();
	}

	TEST(MemorySize) {
	// Initial memory size is 16, see wasm-module-builder.cc
	static const int kExpectedValue = 16;
	TestSignatures sigs;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
	ExportAsMain(f);
	byte code[] = {WASM_MEMORY_SIZE};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, kExpectedValue);
	}

	TEST(Run_WasmModule_MemSize_GrowMem) {
	// Initial memory size = 16 + GrowMemory(10)
	static const int kExpectedValue = 26;
	TestSignatures sigs;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
	ExportAsMain(f);
	byte code[] = {WASM_GROW_MEMORY(WASM_I8(10)), WASM_DROP, WASM_MEMORY_SIZE};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, kExpectedValue);
	}

	TEST(GrowMemoryZero) {
	// Initial memory size is 16, see wasm-module-builder.cc
	static const int kExpectedValue = 16;
	TestSignatures sigs;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
	ExportAsMain(f);
	byte code[] = {WASM_GROW_MEMORY(WASM_I32V(0))};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, kExpectedValue);
	}

	TEST(Run_WasmModule_GrowMemoryInIf) {
	TestSignatures sigs;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
	ExportAsMain(f);
	byte code[] = {WASM_IF_ELSE_I(WASM_I32V(0), WASM_GROW_MEMORY(WASM_I32V(1)),
	WASM_I32V(12))};
	f->EmitCode(code, sizeof(code));
	TestModule(&zone, builder, 12);
	}

	TEST(Run_WasmModule_GrowMemOobOffset) {
	static const int kPageSize = 0x10000;
	// Initial memory size = 16 + GrowMemory(10)
	static const int index = kPageSize * 17 + 4;
	int value = 0xaced;
	TestSignatures sigs;
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
	ExportAsMain(f);
	byte code[] = {
	WASM_GROW_MEMORY(WASM_I8(1)),
	WASM_STORE_MEM(MachineType::Int32(), WASM_I32V(index), WASM_I32V(value))};
	f->EmitCode(code, sizeof(code));
	TestModuleException(&zone, builder);
	}

	TEST(Run_WasmModule_GrowMemOobFixedIndex) {
	static const int kPageSize = 0x10000;
	// Initial memory size = 16 + GrowMemory(10)
	static const int index = kPageSize * 26 + 4;
	int value = 0xaced;
	TestSignatures sigs;
	Isolate* isolate = CcTest::InitIsolateOnce();
	Zone zone(isolate->allocator());

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
	ExportAsMain(f);
	byte code[] = {
	WASM_GROW_MEMORY(WASM_GET_LOCAL(0)), WASM_DROP,
	WASM_STORE_MEM(MachineType::Int32(), WASM_I32V(index), WASM_I32V(value)),
	WASM_LOAD_MEM(MachineType::Int32(), WASM_I32V(index))};
	f->EmitCode(code, sizeof(code));

	HandleScope scope(isolate);
	ZoneBuffer buffer(&zone);
	builder->WriteTo(buffer);
	testing::SetupIsolateForWasmModule(isolate);

	Handle<JSObject> instance = testing::CompileInstantiateWasmModuleForTesting(
	isolate, &zone, buffer.begin(), buffer.end(), ModuleOrigin::kWasmOrigin);
	CHECK(!instance.is_null());

	// Initial memory size is 16 pages, should trap till index > MemSize on
	// consecutive GrowMem calls
	for (uint32_t i = 1; i < 5; i++) {
	Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(i), isolate)};
	v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
	testing::RunWasmModuleForTesting(isolate, instance, 1, params,
	ModuleOrigin::kWasmOrigin);
	CHECK(try_catch.HasCaught());
	isolate->clear_pending_exception();
	}

	Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(1), isolate)};
	int32_t result = testing::RunWasmModuleForTesting(
	isolate, instance, 1, params, ModuleOrigin::kWasmOrigin);
	CHECK(result == 0xaced);
	}

	TEST(Run_WasmModule_GrowMemOobVariableIndex) {
	static const int kPageSize = 0x10000;
	int value = 0xaced;
	TestSignatures sigs;
	Isolate* isolate = CcTest::InitIsolateOnce();
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
	ExportAsMain(f);
	byte code[] = {
	WASM_GROW_MEMORY(WASM_I8(1)), WASM_DROP,
	WASM_STORE_MEM(MachineType::Int32(), WASM_GET_LOCAL(0), WASM_I32V(value)),
	WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(0))};
	f->EmitCode(code, sizeof(code));

	HandleScope scope(isolate);
	ZoneBuffer buffer(&zone);
	builder->WriteTo(buffer);
	testing::SetupIsolateForWasmModule(isolate);

	Handle<JSObject> instance = testing::CompileInstantiateWasmModuleForTesting(
	isolate, &zone, buffer.begin(), buffer.end(), ModuleOrigin::kWasmOrigin);

	CHECK(!instance.is_null());

	// Initial memory size is 16 pages, should trap till index > MemSize on
	// consecutive GrowMem calls
	for (int i = 1; i < 5; i++) {
	Handle<Object> params[1] = {
	Handle<Object>(Smi::FromInt((16 + i) * kPageSize - 3), isolate)};
	v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
	testing::RunWasmModuleForTesting(isolate, instance, 1, params,
	ModuleOrigin::kWasmOrigin);
	CHECK(try_catch.HasCaught());
	isolate->clear_pending_exception();
	}

	for (int i = 1; i < 5; i++) {
	Handle<Object> params[1] = {
	Handle<Object>(Smi::FromInt((20 + i) * kPageSize - 4), isolate)};
	int32_t result = testing::RunWasmModuleForTesting(
	isolate, instance, 1, params, ModuleOrigin::kWasmOrigin);
	CHECK(result == 0xaced);
	}

	v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
	Handle<Object> params[1] = {
	Handle<Object>(Smi::FromInt(25 * kPageSize), isolate)};
	testing::RunWasmModuleForTesting(isolate, instance, 1, params,
	ModuleOrigin::kWasmOrigin);
	CHECK(try_catch.HasCaught());
	isolate->clear_pending_exception();
	}

	TEST(Run_WasmModule_Global_init) {
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	uint32_t global1 =
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(777777));
	uint32_t global2 =
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(222222));
	WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_v());
	byte code[] = {
	WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
	f1->EmitCode(code, sizeof(code));
	ExportAsMain(f1);
	TestModule(&zone, builder, 999999);
	}

	template <typename CType>
	static void RunWasmModuleGlobalInitTest(LocalType type, CType expected) {
	v8::internal::AccountingAllocator allocator;
	Zone zone(&allocator);
	TestSignatures sigs;

	LocalType types[] = {type};
	FunctionSig sig(1, 0, types);

	for (int padding = 0; padding < 5; padding++) {
	// Test with a simple initializer
	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);

	for (int i = 0; i < padding; i++) { // pad global before
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 20000));
	}
	uint32_t global =
	builder->AddGlobal(type, false, false, WasmInitExpr(expected));
	for (int i = 0; i < padding; i++) { // pad global after
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 30000));
	}

	WasmFunctionBuilder* f1 = builder->AddFunction(&sig);
	byte code[] = {WASM_GET_GLOBAL(global)};
	f1->EmitCode(code, sizeof(code));
	ExportAsMain(f1);
	TestModule(&zone, builder, expected);
	}

	for (int padding = 0; padding < 5; padding++) {
	// Test with a global index
	WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
	for (int i = 0; i < padding; i++) { // pad global before
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 40000));
	}

	uint32_t global1 =
	builder->AddGlobal(type, false, false, WasmInitExpr(expected));

	for (int i = 0; i < padding; i++) { // pad global middle
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 50000));
	}

	uint32_t global2 = builder->AddGlobal(
	type, false, false, WasmInitExpr(WasmInitExpr::kGlobalIndex, global1));

	for (int i = 0; i < padding; i++) { // pad global after
	builder->AddGlobal(kAstI32, false, false, WasmInitExpr(i + 60000));
	}

	WasmFunctionBuilder* f1 = builder->AddFunction(&sig);
	byte code[] = {WASM_GET_GLOBAL(global2)};
	f1->EmitCode(code, sizeof(code));
	ExportAsMain(f1);
	TestModule(&zone, builder, expected);
	}
	}

	TEST(Run_WasmModule_Global_i32) {
	RunWasmModuleGlobalInitTest<int32_t>(kAstI32, -983489);
	RunWasmModuleGlobalInitTest<int32_t>(kAstI32, 11223344);
	}

	TEST(Run_WasmModule_Global_f32) {
	RunWasmModuleGlobalInitTest<float>(kAstF32, -983.9f);
	RunWasmModuleGlobalInitTest<float>(kAstF32, 1122.99f);
	}

	TEST(Run_WasmModule_Global_f64) {
	RunWasmModuleGlobalInitTest<double>(kAstF64, -833.9);
	RunWasmModuleGlobalInitTest<double>(kAstF64, 86374.25);
	}