asm-js.cc | Explore in Territory

// 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 "src/asmjs/asm-js.h"

#include <optional>

#include "src/asmjs/asm-names.h"
#include "src/asmjs/asm-parser.h"
#include "src/ast/ast.h"
#include "src/base/platform/elapsed-timer.h"
#include "src/base/vector.h"
#include "src/codegen/compiler.h"
#include "src/codegen/unoptimized-compilation-info.h"
#include "src/common/assert-scope.h"
#include "src/common/message-template.h"
#include "src/execution/execution.h"
#include "src/execution/isolate.h"
#include "src/handles/handles.h"
#include "src/heap/factory.h"
#include "src/logging/counters.h"
#include "src/objects/heap-number-inl.h"
#include "src/objects/objects-inl.h"
#include "src/parsing/parse-info.h"
#include "src/parsing/scanner-character-streams.h"
#include "src/parsing/scanner.h"
#include "src/wasm/wasm-engine.h"
#include "src/wasm/wasm-js.h"
#include "src/wasm/wasm-limits.h"
#include "src/wasm/wasm-module-builder.h"
#include "src/wasm/wasm-objects-inl.h"
#include "src/wasm/wasm-result.h"

namespace v8 {
namespace internal {

const char* const AsmJs::kSingleFunctionName = …;

namespace {

Handle<Object> StdlibMathMember(Isolate* isolate, Handle<JSReceiver> stdlib,
                                Handle<Name> name) { … }

bool AreStdlibMembersValid(Isolate* isolate, Handle<JSReceiver> stdlib,
                           wasm::AsmJsParser::StdlibSet members,
                           bool* is_typed_array) { … }

void Report(Handle<Script> script, int position, base::Vector<const char> text,
            MessageTemplate message_template,
            v8::Isolate::MessageErrorLevel level) { … }

// Hook to report successful execution of {AsmJs::CompileAsmViaWasm} phase.
void ReportCompilationSuccess(Handle<Script> script, int position,
                              double compile_time, size_t module_size) { … }

// Hook to report failed execution of {AsmJs::CompileAsmViaWasm} phase.
void ReportCompilationFailure(ParseInfo* parse_info, int position,
                              const char* reason) { … }

// Hook to report successful execution of {AsmJs::InstantiateAsmWasm} phase.
void ReportInstantiationSuccess(Handle<Script> script, int position,
                                double instantiate_time) { … }

// Hook to report failed execution of {AsmJs::InstantiateAsmWasm} phase.
void ReportInstantiationFailure(Handle<Script> script, int position,
                                const char* reason) { … }

}  // namespace

// The compilation of asm.js modules is split into two distinct steps:
//  [1] ExecuteJobImpl: The asm.js module source is parsed, validated, and
//      translated to a valid WebAssembly module. The result are two vectors
//      representing the encoded module as well as encoded source position
//      information and a StdlibSet bit set.
//  [2] FinalizeJobImpl: The module is handed to WebAssembly which decodes it
//      into an internal representation and eventually compiles it to machine
//      code.
class AsmJsCompilationJob final : public UnoptimizedCompilationJob { … };

UnoptimizedCompilationJob::Status AsmJsCompilationJob::ExecuteJobImpl() { … }

UnoptimizedCompilationJob::Status AsmJsCompilationJob::FinalizeJobImpl(
    Handle<SharedFunctionInfo> shared_info, Isolate* isolate) { … }

void AsmJsCompilationJob::RecordHistograms(Isolate* isolate) { … }

std::unique_ptr<UnoptimizedCompilationJob> AsmJs::NewCompilationJob(
    ParseInfo* parse_info, FunctionLiteral* literal,
    AccountingAllocator* allocator) { … }

namespace {
inline bool IsValidAsmjsMemorySize(size_t size) { … }
}  // namespace

MaybeHandle<Object> AsmJs::InstantiateAsmWasm(
    Isolate* isolate, DirectHandle<SharedFunctionInfo> shared,
    DirectHandle<AsmWasmData> wasm_data, Handle<JSReceiver> stdlib,
    Handle<JSReceiver> foreign, Handle<JSArrayBuffer> memory) { … }

}  // namespace internal
}  // namespace v8
chromium/v8/src/asmjs/asm-js.cc
