Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/cctest/wasm/wasm-run-utils.h b/test/cctest/wasm/wasm-run-utils.h
new file mode 100644
index 0000000..cc23b46
--- /dev/null
+++ b/test/cctest/wasm/wasm-run-utils.h
@@ -0,0 +1,391 @@
+// Copyright 2016 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.
+
+#ifndef WASM_RUN_UTILS_H
+#define WASM_RUN_UTILS_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "src/base/utils/random-number-generator.h"
+
+#include "src/compiler/graph-visualizer.h"
+#include "src/compiler/js-graph.h"
+#include "src/compiler/wasm-compiler.h"
+
+#include "src/wasm/ast-decoder.h"
+#include "src/wasm/wasm-js.h"
+#include "src/wasm/wasm-module.h"
+#include "src/wasm/wasm-opcodes.h"
+
+#include "test/cctest/cctest.h"
+#include "test/cctest/compiler/codegen-tester.h"
+#include "test/cctest/compiler/graph-builder-tester.h"
+
+// TODO(titzer): pull WASM_64 up to a common header.
+#if !V8_TARGET_ARCH_32_BIT || V8_TARGET_ARCH_X64
+#define WASM_64 1
+#else
+#define WASM_64 0
+#endif
+
+// TODO(titzer): check traps more robustly in tests.
+// Currently, in tests, we just return 0xdeadbeef from the function in which
+// the trap occurs if the runtime context is not available to throw a JavaScript
+// exception.
+#define CHECK_TRAP32(x) \
+ CHECK_EQ(0xdeadbeef, (bit_cast<uint32_t>(x)) & 0xFFFFFFFF)
+#define CHECK_TRAP64(x) \
+ CHECK_EQ(0xdeadbeefdeadbeef, (bit_cast<uint64_t>(x)) & 0xFFFFFFFFFFFFFFFF)
+#define CHECK_TRAP(x) CHECK_TRAP32(x)
+
+namespace {
+using namespace v8::base;
+using namespace v8::internal;
+using namespace v8::internal::compiler;
+using namespace v8::internal::wasm;
+
+inline void init_env(FunctionEnv* env, FunctionSig* sig) {
+ env->module = nullptr;
+ env->sig = sig;
+ env->local_int32_count = 0;
+ env->local_int64_count = 0;
+ env->local_float32_count = 0;
+ env->local_float64_count = 0;
+ env->SumLocals();
+}
+
+const uint32_t kMaxGlobalsSize = 128;
+
+// A helper for module environments that adds the ability to allocate memory
+// and global variables.
+class TestingModule : public ModuleEnv {
+ public:
+ TestingModule() : mem_size(0), global_offset(0) {
+ globals_area = 0;
+ mem_start = 0;
+ mem_end = 0;
+ module = nullptr;
+ linker = nullptr;
+ function_code = nullptr;
+ asm_js = false;
+ memset(global_data, 0, sizeof(global_data));
+ }
+
+ ~TestingModule() {
+ if (mem_start) {
+ free(raw_mem_start<byte>());
+ }
+ if (function_code) delete function_code;
+ if (module) delete module;
+ }
+
+ byte* AddMemory(size_t size) {
+ CHECK_EQ(0, mem_start);
+ CHECK_EQ(0, mem_size);
+ mem_start = reinterpret_cast<uintptr_t>(malloc(size));
+ CHECK(mem_start);
+ byte* raw = raw_mem_start<byte>();
+ memset(raw, 0, size);
+ mem_end = mem_start + size;
+ mem_size = size;
+ return raw_mem_start<byte>();
+ }
+
+ template <typename T>
+ T* AddMemoryElems(size_t count) {
+ AddMemory(count * sizeof(T));
+ return raw_mem_start<T>();
+ }
+
+ template <typename T>
+ T* AddGlobal(MachineType mem_type) {
+ WasmGlobal* global = AddGlobal(mem_type);
+ return reinterpret_cast<T*>(globals_area + global->offset);
+ }
+
+ byte AddSignature(FunctionSig* sig) {
+ AllocModule();
+ if (!module->signatures) {
+ module->signatures = new std::vector<FunctionSig*>();
+ }
+ module->signatures->push_back(sig);
+ size_t size = module->signatures->size();
+ CHECK(size < 127);
+ return static_cast<byte>(size - 1);
+ }
+
+ template <typename T>
+ T* raw_mem_start() {
+ DCHECK(mem_start);
+ return reinterpret_cast<T*>(mem_start);
+ }
+
+ template <typename T>
+ T* raw_mem_end() {
+ DCHECK(mem_end);
+ return reinterpret_cast<T*>(mem_end);
+ }
+
+ template <typename T>
+ T raw_mem_at(int i) {
+ DCHECK(mem_start);
+ return reinterpret_cast<T*>(mem_start)[i];
+ }
+
+ template <typename T>
+ T raw_val_at(int i) {
+ T val;
+ memcpy(&val, reinterpret_cast<void*>(mem_start + i), sizeof(T));
+ return val;
+ }
+
+ // Zero-initialize the memory.
+ void BlankMemory() {
+ byte* raw = raw_mem_start<byte>();
+ memset(raw, 0, mem_size);
+ }
+
+ // Pseudo-randomly intialize the memory.
+ void RandomizeMemory(unsigned int seed = 88) {
+ byte* raw = raw_mem_start<byte>();
+ byte* end = raw_mem_end<byte>();
+ v8::base::RandomNumberGenerator rng;
+ rng.SetSeed(seed);
+ rng.NextBytes(raw, end - raw);
+ }
+
+ WasmFunction* AddFunction(FunctionSig* sig, Handle<Code> code) {
+ AllocModule();
+ if (module->functions == nullptr) {
+ module->functions = new std::vector<WasmFunction>();
+ function_code = new std::vector<Handle<Code>>();
+ }
+ module->functions->push_back({sig, 0, 0, 0, 0, 0, 0, 0, false, false});
+ function_code->push_back(code);
+ return &module->functions->back();
+ }
+
+ private:
+ size_t mem_size;
+ uint32_t global_offset;
+ byte global_data[kMaxGlobalsSize];
+
+ WasmGlobal* AddGlobal(MachineType mem_type) {
+ AllocModule();
+ if (globals_area == 0) {
+ globals_area = reinterpret_cast<uintptr_t>(global_data);
+ module->globals = new std::vector<WasmGlobal>();
+ }
+ byte size = WasmOpcodes::MemSize(mem_type);
+ global_offset = (global_offset + size - 1) & ~(size - 1); // align
+ module->globals->push_back({0, mem_type, global_offset, false});
+ global_offset += size;
+ // limit number of globals.
+ CHECK_LT(global_offset, kMaxGlobalsSize);
+ return &module->globals->back();
+ }
+ void AllocModule() {
+ if (module == nullptr) {
+ module = new WasmModule();
+ module->shared_isolate = CcTest::InitIsolateOnce();
+ module->globals = nullptr;
+ module->functions = nullptr;
+ module->data_segments = nullptr;
+ }
+ }
+};
+
+
+inline void TestBuildingGraph(Zone* zone, JSGraph* jsgraph, FunctionEnv* env,
+ const byte* start, const byte* end) {
+ compiler::WasmGraphBuilder builder(zone, jsgraph, env->sig);
+ TreeResult result = BuildTFGraph(&builder, env, start, end);
+ if (result.failed()) {
+ ptrdiff_t pc = result.error_pc - result.start;
+ ptrdiff_t pt = result.error_pt - result.start;
+ std::ostringstream str;
+ str << "Verification failed: " << result.error_code << " pc = +" << pc;
+ if (result.error_pt) str << ", pt = +" << pt;
+ str << ", msg = " << result.error_msg.get();
+ FATAL(str.str().c_str());
+ }
+ if (FLAG_trace_turbo_graph) {
+ OFStream os(stdout);
+ os << AsRPO(*jsgraph->graph());
+ }
+}
+
+
+// A helper for compiling functions that are only internally callable WASM code.
+class WasmFunctionCompiler : public HandleAndZoneScope,
+ private GraphAndBuilders {
+ public:
+ explicit WasmFunctionCompiler(FunctionSig* sig, ModuleEnv* module = nullptr)
+ : GraphAndBuilders(main_zone()),
+ jsgraph(this->isolate(), this->graph(), this->common(), nullptr,
+ nullptr, this->machine()),
+ descriptor_(nullptr) {
+ init_env(&env, sig);
+ env.module = module;
+ }
+
+ JSGraph jsgraph;
+ FunctionEnv env;
+ // The call descriptor is initialized when the function is compiled.
+ CallDescriptor* descriptor_;
+
+ Isolate* isolate() { return main_isolate(); }
+ Graph* graph() const { return main_graph_; }
+ Zone* zone() const { return graph()->zone(); }
+ CommonOperatorBuilder* common() { return &main_common_; }
+ MachineOperatorBuilder* machine() { return &main_machine_; }
+ CallDescriptor* descriptor() { return descriptor_; }
+
+ void Build(const byte* start, const byte* end) {
+ TestBuildingGraph(main_zone(), &jsgraph, &env, start, end);
+ }
+
+ byte AllocateLocal(LocalType type) {
+ int result = static_cast<int>(env.total_locals);
+ env.AddLocals(type, 1);
+ byte b = static_cast<byte>(result);
+ CHECK_EQ(result, b);
+ return b;
+ }
+
+ Handle<Code> Compile(ModuleEnv* module) {
+ descriptor_ = module->GetWasmCallDescriptor(this->zone(), env.sig);
+ CompilationInfo info("wasm compile", this->isolate(), this->zone());
+ Handle<Code> result =
+ Pipeline::GenerateCodeForTesting(&info, descriptor_, this->graph());
+#ifdef ENABLE_DISASSEMBLER
+ if (!result.is_null() && FLAG_print_opt_code) {
+ OFStream os(stdout);
+ result->Disassemble("wasm code", os);
+ }
+#endif
+
+ return result;
+ }
+
+ uint32_t CompileAndAdd(TestingModule* module) {
+ uint32_t index = 0;
+ if (module->module && module->module->functions) {
+ index = static_cast<uint32_t>(module->module->functions->size());
+ }
+ module->AddFunction(env.sig, Compile(module));
+ return index;
+ }
+};
+
+
+// A helper class to build graphs from Wasm bytecode, generate machine
+// code, and run that code.
+template <typename ReturnType>
+class WasmRunner {
+ public:
+ WasmRunner(MachineType p0 = MachineType::None(),
+ MachineType p1 = MachineType::None(),
+ MachineType p2 = MachineType::None(),
+ MachineType p3 = MachineType::None())
+ : signature_(MachineTypeForC<ReturnType>() == MachineType::None() ? 0 : 1,
+ GetParameterCount(p0, p1, p2, p3), storage_),
+ compiler_(&signature_),
+ call_wrapper_(p0, p1, p2, p3),
+ compilation_done_(false) {
+ int index = 0;
+ MachineType ret = MachineTypeForC<ReturnType>();
+ if (ret != MachineType::None()) {
+ storage_[index++] = WasmOpcodes::LocalTypeFor(ret);
+ }
+ if (p0 != MachineType::None())
+ storage_[index++] = WasmOpcodes::LocalTypeFor(p0);
+ if (p1 != MachineType::None())
+ storage_[index++] = WasmOpcodes::LocalTypeFor(p1);
+ if (p2 != MachineType::None())
+ storage_[index++] = WasmOpcodes::LocalTypeFor(p2);
+ if (p3 != MachineType::None())
+ storage_[index++] = WasmOpcodes::LocalTypeFor(p3);
+ }
+
+
+ FunctionEnv* env() { return &compiler_.env; }
+
+
+ // Builds a graph from the given Wasm code, and generates the machine
+ // code and call wrapper for that graph. This method must not be called
+ // more than once.
+ void Build(const byte* start, const byte* end) {
+ DCHECK(!compilation_done_);
+ compilation_done_ = true;
+ // Build the TF graph.
+ compiler_.Build(start, end);
+ // Generate code.
+ Handle<Code> code = compiler_.Compile(env()->module);
+
+ // Construct the call wrapper.
+ Node* inputs[5];
+ int input_count = 0;
+ inputs[input_count++] = call_wrapper_.HeapConstant(code);
+ for (size_t i = 0; i < signature_.parameter_count(); i++) {
+ inputs[input_count++] = call_wrapper_.Parameter(i);
+ }
+
+ call_wrapper_.Return(call_wrapper_.AddNode(
+ call_wrapper_.common()->Call(compiler_.descriptor()), input_count,
+ inputs));
+ }
+
+ ReturnType Call() { return call_wrapper_.Call(); }
+
+ template <typename P0>
+ ReturnType Call(P0 p0) {
+ return call_wrapper_.Call(p0);
+ }
+
+ template <typename P0, typename P1>
+ ReturnType Call(P0 p0, P1 p1) {
+ return call_wrapper_.Call(p0, p1);
+ }
+
+ template <typename P0, typename P1, typename P2>
+ ReturnType Call(P0 p0, P1 p1, P2 p2) {
+ return call_wrapper_.Call(p0, p1, p2);
+ }
+
+ template <typename P0, typename P1, typename P2, typename P3>
+ ReturnType Call(P0 p0, P1 p1, P2 p2, P3 p3) {
+ return call_wrapper_.Call(p0, p1, p2, p3);
+ }
+
+ byte AllocateLocal(LocalType type) {
+ int result = static_cast<int>(env()->total_locals);
+ env()->AddLocals(type, 1);
+ byte b = static_cast<byte>(result);
+ CHECK_EQ(result, b);
+ return b;
+ }
+
+ private:
+ LocalType storage_[5];
+ FunctionSig signature_;
+ WasmFunctionCompiler compiler_;
+ BufferedRawMachineAssemblerTester<ReturnType> call_wrapper_;
+ bool compilation_done_;
+
+ static size_t GetParameterCount(MachineType p0, MachineType p1,
+ MachineType p2, MachineType p3) {
+ if (p0 == MachineType::None()) return 0;
+ if (p1 == MachineType::None()) return 1;
+ if (p2 == MachineType::None()) return 2;
+ if (p3 == MachineType::None()) return 3;
+ return 4;
+ }
+};
+
+} // namespace
+
+#endif