VM: Add dart_precompiled build target, a standalone VM without the JIT compiler.

runtime/vm/compiler.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 
 #include "vm/ast_printer.h"
 #include "vm/block_scheduler.h"
@@ skipping 56 matching lines @@
 DECLARE_FLAG(bool, background_compilation);
 DECLARE_FLAG(bool, load_deferred_eagerly);
 DECLARE_FLAG(bool, trace_failed_optimization_attempts);
 DECLARE_FLAG(bool, trace_inlining_intervals);
 DECLARE_FLAG(bool, trace_irregexp);
 
 
 bool Compiler::always_optimize_ = false;
 bool Compiler::allow_recompilation_ = true;
 
+#ifndef DART_PRECOMPILED
 
 // TODO(zerny): Factor out unoptimizing/optimizing pipelines and remove
 // separate helpers functions & `optimizing` args.
 class CompilationPipeline : public ZoneAllocated {
  public:
   static CompilationPipeline* New(Zone* zone, const Function& function);
 
   virtual void ParseFunction(ParsedFunction* parsed_function) = 0;
   virtual FlowGraph* BuildFlowGraph(
       Zone* zone,
@@ skipping 1816 matching lines @@
 
 
 void BackgroundCompiler::VisitPointers(ObjectPointerVisitor* visitor) {
   function_queue_->VisitObjectPointers(visitor);
   result_queue_->VisitObjectPointers(visitor);
 }
 
 
 void BackgroundCompiler::Stop(BackgroundCompiler* task) {
   ASSERT(Isolate::Current()->background_compiler() == task);
-  if (task == NULL) {
-    return;
-  }
+  ASSERT(task != NULL);
   BackgroundCompilationQueue* function_queue = task->function_queue();
   BackgroundCompilationQueue* result_queue = task->result_queue();
 
   Monitor* queue_monitor = task->queue_monitor_;
   Monitor* done_monitor = task->done_monitor_;
   bool* task_done = task->done_;
   // Wake up compiler task and stop it.
   {
     MonitorLocker ml(task->queue_monitor_);
     task->running_ = false;
@@ skipping 38 matching lines @@
       BackgroundCompiler* task = new BackgroundCompiler(isolate);
       isolate->set_background_compiler(task);
       start_task = true;
     }
   }
   if (start_task) {
     Dart::thread_pool()->Run(isolate->background_compiler());
   }
 }
 
+
+#else

[rmacnak, 2015/11/17 20:51:18]

#else // DART_PRECOMPILED

[Florian Schneider, 2015/11/18 11:44:08]

Done.

+
+
+DEFINE_RUNTIME_ENTRY(CompileFunction, 1) {
+  UNREACHABLE();
+}
+
+
+bool Compiler::IsBackgroundCompilation() {
+  return false;

[rmacnak, 2015/11/17 20:51:18]

UNREACHABLE()

[Florian Schneider, 2015/11/18 11:44:09]

Done.

+}
+
+
+RawError* Compiler::Compile(const Library& library, const Script& script) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+RawError* Compiler::CompileClass(const Class& cls) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+RawError* Compiler::CompileFunction(Thread* thread,
+                                    const Function& function) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+RawError* Compiler::EnsureUnoptimizedCode(Thread* thread,
+                                          const Function& function) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+RawError* Compiler::CompileOptimizedFunction(Thread* thread,
+                                             const Function& function,
+                                             intptr_t osr_id,
+                                             BackgroundCompilationResult* res) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+RawError* Compiler::CompileParsedFunction(
+    ParsedFunction* parsed_function) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+void Compiler::ComputeLocalVarDescriptors(const Code& code) {
+  UNREACHABLE();
+}
+
+
+RawError* Compiler::CompileAllFunctions(const Class& cls) {
+  UNREACHABLE();
+  return Error::null();
+}
+
+
+void Compiler::CompileStaticInitializer(const Field& field) {
+  UNREACHABLE();
+}
+
+
+RawObject* Compiler::EvaluateStaticInitializer(const Field& field) {
+  ASSERT(field.HasPrecompiledInitializer());
+  const Function& initializer =
+      Function::Handle(field.PrecompiledInitializer());
+  return DartEntry::InvokeFunction(initializer, Object::empty_array());
+}
+
+
+
+RawObject* Compiler::ExecuteOnce(SequenceNode* fragment) {
+  UNREACHABLE();
+  return Object::null();
+}
+
+
+void BackgroundCompiler::CompileOptimized(const Function& function) {
+  UNREACHABLE();
+}
+
+
+void BackgroundCompiler::InstallGeneratedCode() {
+  UNREACHABLE();
+}
+
+
+void BackgroundCompiler::VisitPointers(ObjectPointerVisitor* visitor) {
+  UNREACHABLE();
+}
+
+
+void BackgroundCompiler::Stop(BackgroundCompiler* task) {
+  UNREACHABLE();
+}
+
+
+void BackgroundCompiler::EnsureInit(Thread* thread) {
+  UNREACHABLE();
+}
+
+#endif  // DART_PRECOMPILED
+
 }  // namespace dart