62e168308c
This reverts commit8fdb23873b
. Original change's description: > "Reland x4 [arraybuffer] Rearchitect backing store ownership" > > This is a reland ofbc33f5aeba
> > Contributed by titzer@chromium.org > > Original change's description: > > [arraybuffer] Rearchitect backing store ownership > > > > This CL completely rearchitects the ownership of array buffer backing stores, > > consolidating ownership into a {BackingStore} C++ object that is tracked > > throughout V8 using unique_ptr and shared_ptr where appropriate. > > > > Overall, lifetime management is simpler and more explicit. The numerous > > ways that array buffers were initialized have been streamlined to one > > Attach() method on JSArrayBuffer. The array buffer tracker in the > > GC implementation now manages std::shared_ptr<BackingStore> pointers, > > and the construction and destruction of the BackingStore object itself > > handles the underlying page or embedder-allocated memory. > > > > The embedder API remains unchanged for now. We use the > > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to > > keep the backing store alive properly, even in the case of aliases > > from live heap objects. Thus the embedder has a lower chance of making > > a mistake. Long-term, we should move the embedder to a model where they > > manage backing stores using shared_ptr to an opaque backing store object. > > TBR=yangguo@chromium.org > > BUG=v8:9380,v8:9221,chromium:986318 > > Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005 > Commit-Queue: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Clemens Hammacher <clemensh@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63041} TBR=yangguo@chromium.org,clemensh@chromium.org,mstarzinger@chromium.org Change-Id: Iba55c7ab71e5642b5cb6aeb699d6fc9cf9061486 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1771795 Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#63461}
585 lines
24 KiB
C++
585 lines
24 KiB
C++
// 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 "test/cctest/wasm/wasm-run-utils.h"
|
|
|
|
#include "src/codegen/assembler-inl.h"
|
|
#include "src/diagnostics/code-tracer.h"
|
|
#include "src/heap/heap-inl.h"
|
|
#include "src/wasm/graph-builder-interface.h"
|
|
#include "src/wasm/module-compiler.h"
|
|
#include "src/wasm/wasm-import-wrapper-cache.h"
|
|
#include "src/wasm/wasm-objects-inl.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
namespace wasm {
|
|
|
|
TestingModuleBuilder::TestingModuleBuilder(
|
|
Zone* zone, ManuallyImportedJSFunction* maybe_import, ExecutionTier tier,
|
|
RuntimeExceptionSupport exception_support, LowerSimd lower_simd)
|
|
: test_module_(std::make_shared<WasmModule>()),
|
|
test_module_ptr_(test_module_.get()),
|
|
isolate_(CcTest::InitIsolateOnce()),
|
|
enabled_features_(WasmFeaturesFromIsolate(isolate_)),
|
|
execution_tier_(tier),
|
|
runtime_exception_support_(exception_support),
|
|
lower_simd_(lower_simd) {
|
|
WasmJs::Install(isolate_, true);
|
|
test_module_->untagged_globals_buffer_size = kMaxGlobalsSize;
|
|
memset(globals_data_, 0, sizeof(globals_data_));
|
|
|
|
uint32_t maybe_import_index = 0;
|
|
if (maybe_import) {
|
|
// Manually add an imported function before any other functions.
|
|
// This must happen before the instance object is created, since the
|
|
// instance object allocates import entries.
|
|
maybe_import_index = AddFunction(maybe_import->sig, nullptr, kImport);
|
|
DCHECK_EQ(0, maybe_import_index);
|
|
}
|
|
|
|
instance_object_ = InitInstanceObject();
|
|
Handle<FixedArray> tables(isolate_->factory()->NewFixedArray(0));
|
|
instance_object_->set_tables(*tables);
|
|
|
|
if (maybe_import) {
|
|
// Manually compile an import wrapper and insert it into the instance.
|
|
CodeSpaceMemoryModificationScope modification_scope(isolate_->heap());
|
|
auto resolved = compiler::ResolveWasmImportCall(
|
|
maybe_import->js_function, maybe_import->sig, enabled_features_);
|
|
compiler::WasmImportCallKind kind = resolved.first;
|
|
Handle<JSReceiver> callable = resolved.second;
|
|
WasmImportWrapperCache::ModificationScope cache_scope(
|
|
native_module_->import_wrapper_cache());
|
|
WasmImportWrapperCache::CacheKey key(kind, maybe_import->sig);
|
|
auto import_wrapper = cache_scope[key];
|
|
if (import_wrapper == nullptr) {
|
|
import_wrapper = CompileImportWrapper(
|
|
isolate_->wasm_engine(), native_module_, isolate_->counters(), kind,
|
|
maybe_import->sig, &cache_scope);
|
|
}
|
|
|
|
ImportedFunctionEntry(instance_object_, maybe_import_index)
|
|
.SetWasmToJs(isolate_, callable, import_wrapper);
|
|
}
|
|
|
|
if (tier == ExecutionTier::kInterpreter) {
|
|
interpreter_ = WasmDebugInfo::SetupForTesting(instance_object_);
|
|
}
|
|
}
|
|
|
|
byte* TestingModuleBuilder::AddMemory(uint32_t size, SharedFlag shared) {
|
|
CHECK(!test_module_->has_memory);
|
|
CHECK_NULL(mem_start_);
|
|
CHECK_EQ(0, mem_size_);
|
|
DCHECK(!instance_object_->has_memory_object());
|
|
uint32_t initial_pages = RoundUp(size, kWasmPageSize) / kWasmPageSize;
|
|
uint32_t maximum_pages = (test_module_->maximum_pages != 0)
|
|
? test_module_->maximum_pages
|
|
: initial_pages;
|
|
test_module_->has_memory = true;
|
|
|
|
// Create the WasmMemoryObject.
|
|
Handle<WasmMemoryObject> memory_object =
|
|
WasmMemoryObject::New(isolate_, initial_pages, maximum_pages, shared)
|
|
.ToHandleChecked();
|
|
instance_object_->set_memory_object(*memory_object);
|
|
|
|
mem_start_ =
|
|
reinterpret_cast<byte*>(memory_object->array_buffer().backing_store());
|
|
mem_size_ = size;
|
|
CHECK(size == 0 || mem_start_);
|
|
|
|
WasmMemoryObject::AddInstance(isolate_, memory_object, instance_object_);
|
|
// TODO(wasm): Delete the following two lines when test-run-wasm will use a
|
|
// multiple of kPageSize as memory size. At the moment, the effect of these
|
|
// two lines is used to shrink the memory for testing purposes.
|
|
instance_object_->SetRawMemory(mem_start_, mem_size_);
|
|
return mem_start_;
|
|
}
|
|
|
|
uint32_t TestingModuleBuilder::AddFunction(FunctionSig* sig, const char* name,
|
|
FunctionType type) {
|
|
if (test_module_->functions.size() == 0) {
|
|
// TODO(titzer): Reserving space here to avoid the underlying WasmFunction
|
|
// structs from moving.
|
|
test_module_->functions.reserve(kMaxFunctions);
|
|
}
|
|
uint32_t index = static_cast<uint32_t>(test_module_->functions.size());
|
|
test_module_->functions.push_back({sig, index, 0, {0, 0}, false, false});
|
|
if (type == kImport) {
|
|
DCHECK_EQ(0, test_module_->num_declared_functions);
|
|
++test_module_->num_imported_functions;
|
|
test_module_->functions.back().imported = true;
|
|
} else {
|
|
++test_module_->num_declared_functions;
|
|
}
|
|
DCHECK_EQ(test_module_->functions.size(),
|
|
test_module_->num_imported_functions +
|
|
test_module_->num_declared_functions);
|
|
if (name) {
|
|
Vector<const byte> name_vec = Vector<const byte>::cast(CStrVector(name));
|
|
test_module_->AddFunctionNameForTesting(
|
|
index, {AddBytes(name_vec), static_cast<uint32_t>(name_vec.length())});
|
|
}
|
|
if (interpreter_) {
|
|
interpreter_->AddFunctionForTesting(&test_module_->functions.back());
|
|
// Patch the jump table to call the interpreter for this function.
|
|
wasm::WasmCompilationResult result = compiler::CompileWasmInterpreterEntry(
|
|
isolate_->wasm_engine(), native_module_->enabled_features(), index,
|
|
sig);
|
|
std::unique_ptr<wasm::WasmCode> code = native_module_->AddCode(
|
|
index, result.code_desc, result.frame_slot_count,
|
|
result.tagged_parameter_slots, std::move(result.protected_instructions),
|
|
std::move(result.source_positions), wasm::WasmCode::kInterpreterEntry,
|
|
wasm::ExecutionTier::kInterpreter);
|
|
native_module_->PublishCode(std::move(code));
|
|
}
|
|
DCHECK_LT(index, kMaxFunctions); // limited for testing.
|
|
return index;
|
|
}
|
|
|
|
void TestingModuleBuilder::FreezeSignatureMapAndInitializeWrapperCache() {
|
|
if (test_module_->signature_map.is_frozen()) return;
|
|
test_module_->signature_map.Freeze();
|
|
size_t max_num_sigs = MaxNumExportWrappers(test_module_.get());
|
|
Handle<FixedArray> export_wrappers =
|
|
isolate_->factory()->NewFixedArray(static_cast<int>(max_num_sigs));
|
|
instance_object_->module_object().set_export_wrappers(*export_wrappers);
|
|
}
|
|
|
|
Handle<JSFunction> TestingModuleBuilder::WrapCode(uint32_t index) {
|
|
FreezeSignatureMapAndInitializeWrapperCache();
|
|
SetExecutable();
|
|
return WasmInstanceObject::GetOrCreateWasmExternalFunction(
|
|
isolate_, instance_object(), index);
|
|
}
|
|
|
|
void TestingModuleBuilder::AddIndirectFunctionTable(
|
|
const uint16_t* function_indexes, uint32_t table_size) {
|
|
auto instance = instance_object();
|
|
uint32_t table_index = static_cast<uint32_t>(test_module_->tables.size());
|
|
test_module_->tables.emplace_back();
|
|
WasmTable& table = test_module_->tables.back();
|
|
table.initial_size = table_size;
|
|
table.maximum_size = table_size;
|
|
table.has_maximum_size = true;
|
|
table.type = kWasmFuncRef;
|
|
|
|
{
|
|
// Allocate the indirect function table.
|
|
Handle<FixedArray> old_tables =
|
|
table_index == 0
|
|
? isolate_->factory()->empty_fixed_array()
|
|
: handle(instance_object_->indirect_function_tables(), isolate_);
|
|
Handle<FixedArray> new_tables =
|
|
isolate_->factory()->CopyFixedArrayAndGrow(old_tables, 1);
|
|
Handle<WasmIndirectFunctionTable> table_obj =
|
|
WasmIndirectFunctionTable::New(isolate_, table.initial_size);
|
|
new_tables->set(table_index, *table_obj);
|
|
instance_object_->set_indirect_function_tables(*new_tables);
|
|
}
|
|
|
|
WasmInstanceObject::EnsureIndirectFunctionTableWithMinimumSize(
|
|
instance_object(), table_index, table_size);
|
|
Handle<WasmTableObject> table_obj =
|
|
WasmTableObject::New(isolate_, table.type, table.initial_size,
|
|
table.has_maximum_size, table.maximum_size, nullptr);
|
|
|
|
WasmTableObject::AddDispatchTable(isolate_, table_obj, instance_object_,
|
|
table_index);
|
|
|
|
if (function_indexes) {
|
|
for (uint32_t i = 0; i < table_size; ++i) {
|
|
WasmFunction& function = test_module_->functions[function_indexes[i]];
|
|
int sig_id = test_module_->signature_map.Find(*function.sig);
|
|
IndirectFunctionTableEntry(instance, table_index, i)
|
|
.Set(sig_id, instance, function.func_index);
|
|
WasmTableObject::SetFunctionTablePlaceholder(
|
|
isolate_, table_obj, i, instance_object_, function_indexes[i]);
|
|
}
|
|
}
|
|
|
|
Handle<FixedArray> old_tables(instance_object_->tables(), isolate_);
|
|
Handle<FixedArray> new_tables =
|
|
isolate_->factory()->CopyFixedArrayAndGrow(old_tables, 1);
|
|
new_tables->set(old_tables->length(), *table_obj);
|
|
instance_object_->set_tables(*new_tables);
|
|
}
|
|
|
|
uint32_t TestingModuleBuilder::AddBytes(Vector<const byte> bytes) {
|
|
Vector<const uint8_t> old_bytes = native_module_->wire_bytes();
|
|
uint32_t old_size = static_cast<uint32_t>(old_bytes.size());
|
|
// Avoid placing strings at offset 0, this might be interpreted as "not
|
|
// set", e.g. for function names.
|
|
uint32_t bytes_offset = old_size ? old_size : 1;
|
|
size_t new_size = bytes_offset + bytes.size();
|
|
OwnedVector<uint8_t> new_bytes = OwnedVector<uint8_t>::New(new_size);
|
|
if (old_size > 0) {
|
|
memcpy(new_bytes.start(), old_bytes.begin(), old_size);
|
|
}
|
|
memcpy(new_bytes.start() + bytes_offset, bytes.begin(), bytes.length());
|
|
native_module_->SetWireBytes(std::move(new_bytes));
|
|
return bytes_offset;
|
|
}
|
|
|
|
uint32_t TestingModuleBuilder::AddException(FunctionSig* sig) {
|
|
DCHECK_EQ(0, sig->return_count());
|
|
uint32_t index = static_cast<uint32_t>(test_module_->exceptions.size());
|
|
test_module_->exceptions.push_back(WasmException{sig});
|
|
Handle<WasmExceptionTag> tag = WasmExceptionTag::New(isolate_, index);
|
|
Handle<FixedArray> table(instance_object_->exceptions_table(), isolate_);
|
|
table = isolate_->factory()->CopyFixedArrayAndGrow(table, 1);
|
|
instance_object_->set_exceptions_table(*table);
|
|
table->set(index, *tag);
|
|
return index;
|
|
}
|
|
|
|
uint32_t TestingModuleBuilder::AddPassiveDataSegment(Vector<const byte> bytes) {
|
|
uint32_t index = static_cast<uint32_t>(test_module_->data_segments.size());
|
|
DCHECK_EQ(index, test_module_->data_segments.size());
|
|
DCHECK_EQ(index, data_segment_starts_.size());
|
|
DCHECK_EQ(index, data_segment_sizes_.size());
|
|
DCHECK_EQ(index, dropped_data_segments_.size());
|
|
|
|
// Add a passive data segment. This isn't used by function compilation, but
|
|
// but it keeps the index in sync. The data segment's source will not be
|
|
// correct, since we don't store data in the module wire bytes.
|
|
test_module_->data_segments.emplace_back();
|
|
|
|
// The num_declared_data_segments (from the DataCount section) is used
|
|
// to validate the segment index, during function compilation.
|
|
test_module_->num_declared_data_segments = index + 1;
|
|
|
|
Address old_data_address =
|
|
reinterpret_cast<Address>(data_segment_data_.data());
|
|
size_t old_data_size = data_segment_data_.size();
|
|
data_segment_data_.resize(old_data_size + bytes.length());
|
|
Address new_data_address =
|
|
reinterpret_cast<Address>(data_segment_data_.data());
|
|
|
|
memcpy(data_segment_data_.data() + old_data_size, bytes.begin(),
|
|
bytes.length());
|
|
|
|
// The data_segment_data_ offset may have moved, so update all the starts.
|
|
for (Address& start : data_segment_starts_) {
|
|
start += new_data_address - old_data_address;
|
|
}
|
|
data_segment_starts_.push_back(new_data_address + old_data_size);
|
|
data_segment_sizes_.push_back(bytes.length());
|
|
dropped_data_segments_.push_back(0);
|
|
|
|
// The vector pointers may have moved, so update the instance object.
|
|
instance_object_->set_data_segment_starts(data_segment_starts_.data());
|
|
instance_object_->set_data_segment_sizes(data_segment_sizes_.data());
|
|
instance_object_->set_dropped_data_segments(dropped_data_segments_.data());
|
|
return index;
|
|
}
|
|
|
|
uint32_t TestingModuleBuilder::AddPassiveElementSegment(
|
|
const std::vector<uint32_t>& entries) {
|
|
uint32_t index = static_cast<uint32_t>(test_module_->elem_segments.size());
|
|
DCHECK_EQ(index, dropped_elem_segments_.size());
|
|
|
|
test_module_->elem_segments.emplace_back();
|
|
auto& elem_segment = test_module_->elem_segments.back();
|
|
elem_segment.entries = entries;
|
|
|
|
// The vector pointers may have moved, so update the instance object.
|
|
dropped_elem_segments_.push_back(0);
|
|
instance_object_->set_dropped_elem_segments(dropped_elem_segments_.data());
|
|
return index;
|
|
}
|
|
|
|
CompilationEnv TestingModuleBuilder::CreateCompilationEnv() {
|
|
// This is a hack so we don't need to call
|
|
// trap_handler::IsTrapHandlerEnabled().
|
|
const bool is_trap_handler_enabled =
|
|
V8_TRAP_HANDLER_SUPPORTED && i::FLAG_wasm_trap_handler;
|
|
return {test_module_ptr_,
|
|
is_trap_handler_enabled ? kUseTrapHandler : kNoTrapHandler,
|
|
runtime_exception_support_, enabled_features_, lower_simd()};
|
|
}
|
|
|
|
const WasmGlobal* TestingModuleBuilder::AddGlobal(ValueType type) {
|
|
byte size = ValueTypes::MemSize(ValueTypes::MachineTypeFor(type));
|
|
global_offset = (global_offset + size - 1) & ~(size - 1); // align
|
|
test_module_->globals.push_back(
|
|
{type, true, WasmInitExpr(), {global_offset}, false, false});
|
|
global_offset += size;
|
|
// limit number of globals.
|
|
CHECK_LT(global_offset, kMaxGlobalsSize);
|
|
return &test_module_->globals.back();
|
|
}
|
|
|
|
Handle<WasmInstanceObject> TestingModuleBuilder::InitInstanceObject() {
|
|
Handle<Script> script =
|
|
isolate_->factory()->NewScript(isolate_->factory()->empty_string());
|
|
script->set_type(Script::TYPE_WASM);
|
|
|
|
auto native_module = isolate_->wasm_engine()->NewNativeModule(
|
|
isolate_, enabled_features_, test_module_);
|
|
native_module->SetWireBytes(OwnedVector<const uint8_t>());
|
|
native_module->SetRuntimeStubs(isolate_);
|
|
|
|
Handle<WasmModuleObject> module_object =
|
|
WasmModuleObject::New(isolate_, std::move(native_module), script);
|
|
// This method is called when we initialize TestEnvironment. We don't
|
|
// have a memory yet, so we won't create it here. We'll update the
|
|
// interpreter when we get a memory. We do have globals, though.
|
|
native_module_ = module_object->native_module();
|
|
native_module_->ReserveCodeTableForTesting(kMaxFunctions);
|
|
|
|
auto instance = WasmInstanceObject::New(isolate_, module_object);
|
|
instance->set_exceptions_table(*isolate_->factory()->empty_fixed_array());
|
|
instance->set_globals_start(globals_data_);
|
|
return instance;
|
|
}
|
|
|
|
void TestBuildingGraphWithBuilder(compiler::WasmGraphBuilder* builder,
|
|
Zone* zone, FunctionSig* sig,
|
|
const byte* start, const byte* end) {
|
|
WasmFeatures unused_detected_features;
|
|
FunctionBody body(sig, 0, start, end);
|
|
DecodeResult result =
|
|
BuildTFGraph(zone->allocator(), kAllWasmFeatures, nullptr, builder,
|
|
&unused_detected_features, body, nullptr);
|
|
if (result.failed()) {
|
|
#ifdef DEBUG
|
|
if (!FLAG_trace_wasm_decoder) {
|
|
// Retry the compilation with the tracing flag on, to help in debugging.
|
|
FLAG_trace_wasm_decoder = true;
|
|
result = BuildTFGraph(zone->allocator(), kAllWasmFeatures, nullptr,
|
|
builder, &unused_detected_features, body, nullptr);
|
|
}
|
|
#endif
|
|
|
|
FATAL("Verification failed; pc = +%x, msg = %s", result.error().offset(),
|
|
result.error().message().c_str());
|
|
}
|
|
builder->LowerInt64(compiler::WasmGraphBuilder::kCalledFromWasm);
|
|
if (!CpuFeatures::SupportsWasmSimd128()) {
|
|
builder->SimdScalarLoweringForTesting();
|
|
}
|
|
}
|
|
|
|
void TestBuildingGraph(Zone* zone, compiler::JSGraph* jsgraph,
|
|
CompilationEnv* module, FunctionSig* sig,
|
|
compiler::SourcePositionTable* source_position_table,
|
|
const byte* start, const byte* end) {
|
|
compiler::WasmGraphBuilder builder(module, zone, jsgraph, sig,
|
|
source_position_table);
|
|
TestBuildingGraphWithBuilder(&builder, zone, sig, start, end);
|
|
}
|
|
|
|
WasmFunctionWrapper::WasmFunctionWrapper(Zone* zone, int num_params)
|
|
: GraphAndBuilders(zone),
|
|
inner_code_node_(nullptr),
|
|
context_address_(nullptr),
|
|
signature_(nullptr) {
|
|
// One additional parameter for the pointer to the return value memory.
|
|
Signature<MachineType>::Builder sig_builder(zone, 1, num_params + 1);
|
|
|
|
sig_builder.AddReturn(MachineType::Int32());
|
|
for (int i = 0; i < num_params + 1; i++) {
|
|
sig_builder.AddParam(MachineType::Pointer());
|
|
}
|
|
signature_ = sig_builder.Build();
|
|
}
|
|
|
|
void WasmFunctionWrapper::Init(CallDescriptor* call_descriptor,
|
|
MachineType return_type,
|
|
Vector<MachineType> param_types) {
|
|
DCHECK_NOT_NULL(call_descriptor);
|
|
DCHECK_EQ(signature_->parameter_count(), param_types.length() + 1);
|
|
|
|
// Create the TF graph for the wrapper.
|
|
|
|
// Function, context_address, effect, and control.
|
|
Node** parameters = zone()->NewArray<Node*>(param_types.length() + 4);
|
|
int start_value_output_count =
|
|
static_cast<int>(signature_->parameter_count()) + 1;
|
|
graph()->SetStart(
|
|
graph()->NewNode(common()->Start(start_value_output_count)));
|
|
Node* effect = graph()->start();
|
|
int parameter_count = 0;
|
|
|
|
// Dummy node which gets replaced in SetInnerCode.
|
|
inner_code_node_ = graph()->NewNode(common()->Int32Constant(0));
|
|
parameters[parameter_count++] = inner_code_node_;
|
|
|
|
// Dummy node that gets replaced in SetContextAddress.
|
|
context_address_ = graph()->NewNode(IntPtrConstant(0));
|
|
parameters[parameter_count++] = context_address_;
|
|
|
|
int param_idx = 0;
|
|
for (MachineType t : param_types) {
|
|
DCHECK_NE(MachineType::None(), t);
|
|
parameters[parameter_count] = graph()->NewNode(
|
|
machine()->Load(t),
|
|
graph()->NewNode(common()->Parameter(param_idx++), graph()->start()),
|
|
graph()->NewNode(common()->Int32Constant(0)), effect, graph()->start());
|
|
effect = parameters[parameter_count++];
|
|
}
|
|
|
|
parameters[parameter_count++] = effect;
|
|
parameters[parameter_count++] = graph()->start();
|
|
Node* call = graph()->NewNode(common()->Call(call_descriptor),
|
|
parameter_count, parameters);
|
|
|
|
if (!return_type.IsNone()) {
|
|
effect = graph()->NewNode(
|
|
machine()->Store(compiler::StoreRepresentation(
|
|
return_type.representation(),
|
|
compiler::WriteBarrierKind::kNoWriteBarrier)),
|
|
graph()->NewNode(common()->Parameter(param_types.length()),
|
|
graph()->start()),
|
|
graph()->NewNode(common()->Int32Constant(0)), call, effect,
|
|
graph()->start());
|
|
}
|
|
Node* zero = graph()->NewNode(common()->Int32Constant(0));
|
|
Node* r = graph()->NewNode(
|
|
common()->Return(), zero,
|
|
graph()->NewNode(common()->Int32Constant(WASM_WRAPPER_RETURN_VALUE)),
|
|
effect, graph()->start());
|
|
graph()->SetEnd(graph()->NewNode(common()->End(1), r));
|
|
}
|
|
|
|
Handle<Code> WasmFunctionWrapper::GetWrapperCode() {
|
|
Handle<Code> code;
|
|
if (!code_.ToHandle(&code)) {
|
|
Isolate* isolate = CcTest::InitIsolateOnce();
|
|
|
|
auto call_descriptor = compiler::Linkage::GetSimplifiedCDescriptor(
|
|
zone(), signature_, CallDescriptor::kInitializeRootRegister);
|
|
|
|
if (kSystemPointerSize == 4) {
|
|
size_t num_params = signature_->parameter_count();
|
|
// One additional parameter for the pointer of the return value.
|
|
Signature<MachineRepresentation>::Builder rep_builder(zone(), 1,
|
|
num_params + 1);
|
|
|
|
rep_builder.AddReturn(MachineRepresentation::kWord32);
|
|
for (size_t i = 0; i < num_params + 1; i++) {
|
|
rep_builder.AddParam(MachineRepresentation::kWord32);
|
|
}
|
|
compiler::Int64Lowering r(graph(), machine(), common(), zone(),
|
|
rep_builder.Build());
|
|
r.LowerGraph();
|
|
}
|
|
|
|
OptimizedCompilationInfo info(ArrayVector("testing"), graph()->zone(),
|
|
Code::C_WASM_ENTRY);
|
|
code_ = compiler::Pipeline::GenerateCodeForTesting(
|
|
&info, isolate, call_descriptor, graph(),
|
|
AssemblerOptions::Default(isolate));
|
|
code = code_.ToHandleChecked();
|
|
#ifdef ENABLE_DISASSEMBLER
|
|
if (FLAG_print_opt_code) {
|
|
CodeTracer::Scope tracing_scope(isolate->GetCodeTracer());
|
|
OFStream os(tracing_scope.file());
|
|
|
|
code->Disassemble("wasm wrapper", os);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return code;
|
|
}
|
|
|
|
void WasmFunctionCompiler::Build(const byte* start, const byte* end) {
|
|
size_t locals_size = local_decls.Size();
|
|
size_t total_size = end - start + locals_size + 1;
|
|
byte* buffer = static_cast<byte*>(zone()->New(total_size));
|
|
// Prepend the local decls to the code.
|
|
local_decls.Emit(buffer);
|
|
// Emit the code.
|
|
memcpy(buffer + locals_size, start, end - start);
|
|
// Append an extra end opcode.
|
|
buffer[total_size - 1] = kExprEnd;
|
|
|
|
start = buffer;
|
|
end = buffer + total_size;
|
|
|
|
CHECK_GE(kMaxInt, end - start);
|
|
int len = static_cast<int>(end - start);
|
|
function_->code = {builder_->AddBytes(Vector<const byte>(start, len)),
|
|
static_cast<uint32_t>(len)};
|
|
|
|
if (interpreter_) {
|
|
// Add the code to the interpreter; do not generate compiled code.
|
|
interpreter_->SetFunctionCodeForTesting(function_, start, end);
|
|
return;
|
|
}
|
|
|
|
Vector<const uint8_t> wire_bytes = builder_->instance_object()
|
|
->module_object()
|
|
.native_module()
|
|
->wire_bytes();
|
|
|
|
CompilationEnv env = builder_->CreateCompilationEnv();
|
|
ScopedVector<uint8_t> func_wire_bytes(function_->code.length());
|
|
memcpy(func_wire_bytes.begin(), wire_bytes.begin() + function_->code.offset(),
|
|
func_wire_bytes.length());
|
|
|
|
FunctionBody func_body{function_->sig, function_->code.offset(),
|
|
func_wire_bytes.begin(), func_wire_bytes.end()};
|
|
NativeModule* native_module =
|
|
builder_->instance_object()->module_object().native_module();
|
|
WasmCompilationUnit unit(function_->func_index, builder_->execution_tier());
|
|
WasmFeatures unused_detected_features;
|
|
WasmCompilationResult result = unit.ExecuteCompilation(
|
|
isolate()->wasm_engine(), &env,
|
|
native_module->compilation_state()->GetWireBytesStorage(),
|
|
isolate()->counters(), &unused_detected_features);
|
|
WasmCode* code = native_module->AddCompiledCode(std::move(result));
|
|
DCHECK_NOT_NULL(code);
|
|
if (WasmCode::ShouldBeLogged(isolate())) code->LogCode(isolate());
|
|
}
|
|
|
|
WasmFunctionCompiler::WasmFunctionCompiler(Zone* zone, FunctionSig* sig,
|
|
TestingModuleBuilder* builder,
|
|
const char* name)
|
|
: GraphAndBuilders(zone),
|
|
jsgraph(builder->isolate(), this->graph(), this->common(), nullptr,
|
|
nullptr, this->machine()),
|
|
sig(sig),
|
|
descriptor_(nullptr),
|
|
builder_(builder),
|
|
local_decls(zone, sig),
|
|
source_position_table_(this->graph()),
|
|
interpreter_(builder->interpreter()) {
|
|
// Get a new function from the testing module.
|
|
int index = builder->AddFunction(sig, name, TestingModuleBuilder::kWasm);
|
|
function_ = builder_->GetFunctionAt(index);
|
|
}
|
|
|
|
WasmFunctionCompiler::~WasmFunctionCompiler() = default;
|
|
|
|
FunctionSig* WasmRunnerBase::CreateSig(MachineType return_type,
|
|
Vector<MachineType> param_types) {
|
|
int return_count = return_type.IsNone() ? 0 : 1;
|
|
int param_count = param_types.length();
|
|
|
|
// Allocate storage array in zone.
|
|
ValueType* sig_types = zone_.NewArray<ValueType>(return_count + param_count);
|
|
|
|
// Convert machine types to local types, and check that there are no
|
|
// MachineType::None()'s in the parameters.
|
|
int idx = 0;
|
|
if (return_count) sig_types[idx++] = ValueTypes::ValueTypeFor(return_type);
|
|
for (MachineType param : param_types) {
|
|
CHECK_NE(MachineType::None(), param);
|
|
sig_types[idx++] = ValueTypes::ValueTypeFor(param);
|
|
}
|
|
return new (&zone_) FunctionSig(return_count, param_count, sig_types);
|
|
}
|
|
|
|
// static
|
|
bool WasmRunnerBase::trap_happened;
|
|
|
|
} // namespace wasm
|
|
} // namespace internal
|
|
} // namespace v8
|