[Interpreter] Minimal bytecode generator.

src/compiler.cc

 // Copyright 2012 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/compiler.h"
 
 #include <algorithm>
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/compilation-cache.h"
 #include "src/compiler/pipeline.h"
 #include "src/cpu-profiler.h"
 #include "src/debug/debug.h"
 #include "src/debug/liveedit.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/gdb-jit.h"
 #include "src/hydrogen.h"
+#include "src/interpreter/interpreter.h"
 #include "src/lithium.h"
 #include "src/log-inl.h"
 #include "src/messages.h"
 #include "src/parser.h"
 #include "src/prettyprinter.h"
 #include "src/rewriter.h"
 #include "src/runtime-profiler.h"
 #include "src/scanner-character-streams.h"
 #include "src/scopeinfo.h"
 #include "src/scopes.h"
@@ skipping 623 matching lines @@
   if (!Compiler::Analyze(info->parse_info()) ||
       !FullCodeGenerator::MakeCode(info)) {
     Isolate* isolate = info->isolate();
     if (!isolate->has_pending_exception()) isolate->StackOverflow();
     return false;
   }
   return true;
 }
 
 
+static bool GenerateBytecode(CompilationInfo* info) {
+  DCHECK(AllowCompilation::IsAllowed(info->isolate()));
+  if (!Compiler::Analyze(info->parse_info()) ||
+      !interpreter::Interpreter::MakeBytecode(info)) {
+    Isolate* isolate = info->isolate();
+    if (!isolate->has_pending_exception()) isolate->StackOverflow();
+    return false;
+  }
+  return true;
+}
+
+
 MUST_USE_RESULT static MaybeHandle<Code> GetUnoptimizedCodeCommon(
     CompilationInfo* info) {
   VMState<COMPILER> state(info->isolate());
   PostponeInterruptsScope postpone(info->isolate());
 
   // Parse and update CompilationInfo with the results.
   if (!Parser::ParseStatic(info->parse_info())) return MaybeHandle<Code>();
   Handle<SharedFunctionInfo> shared = info->shared_info();
   FunctionLiteral* lit = info->function();
   shared->set_language_mode(lit->language_mode());
   SetExpectedNofPropertiesFromEstimate(shared, lit->expected_property_count());
   MaybeDisableOptimization(shared, lit->dont_optimize_reason());
 
-  // Compile unoptimized code.
-  if (!CompileUnoptimizedCode(info)) return MaybeHandle<Code>();
+  if (FLAG_ignition && info->closure()->PassesFilter(FLAG_ignition_filter)) {
+    // Compile bytecode for the interpreter.
+    if (!GenerateBytecode(info)) return MaybeHandle<Code>();
+  } else {
+    // Compile unoptimized code.
+    if (!CompileUnoptimizedCode(info)) return MaybeHandle<Code>();
 
-  CHECK_EQ(Code::FUNCTION, info->code()->kind());
-  RecordFunctionCompilation(Logger::LAZY_COMPILE_TAG, info, shared);
+    CHECK_EQ(Code::FUNCTION, info->code()->kind());
+    RecordFunctionCompilation(Logger::LAZY_COMPILE_TAG, info, shared);
+  }
 
   // Update the shared function info with the scope info. Allocating the
   // ScopeInfo object may cause a GC.
   Handle<ScopeInfo> scope_info =
       ScopeInfo::Create(info->isolate(), info->zone(), info->scope());
   shared->set_scope_info(*scope_info);
 
   // Update the code and feedback vector for the shared function info.
   shared->ReplaceCode(*info->code());
   shared->set_feedback_vector(*info->feedback_vector());
@@ skipping 992 matching lines @@
 
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(function()));
 }
 #endif
 }  // namespace internal
 }  // namespace v8