dart2js: Measure time of individual optimization passes.

pkg/compiler/lib/src/compiler.dart

 // 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.
 
 library dart2js.compiler_base;
 
 import 'dart:async' show
     EventSink,
     Future;
 
@@ skipping 16 matching lines @@
     ResolutionWorkItem;
 import 'common/tasks.dart' show
     CompilerTask,
     GenericTask;
 import 'common/work.dart' show
     WorkItem;
 import 'compile_time_constants.dart';
 import 'constants/values.dart';
 import 'core_types.dart' show
     CoreTypes;
-import 'cps_ir/cps_ir_builder_task.dart' show
-    IrBuilderTask;
 import 'dart_backend/dart_backend.dart' as dart_backend;
 import 'dart_types.dart' show
     DartType,
     DynamicType,
     InterfaceType,
     Types;
 import 'deferred_load.dart' show DeferredLoadTask, OutputUnit;
 import 'diagnostics/code_location.dart';
 import 'diagnostics/diagnostic_listener.dart';
 import 'diagnostics/invariant.dart' show
@@ skipping 372 matching lines @@
   List<CompilerTask> tasks;
   ScannerTask scanner;
   DietParserTask dietParser;
   ParserTask parser;
   PatchParserTask patchParser;
   LibraryLoaderTask libraryLoader;
   SerializationTask serialization;
   ResolverTask resolver;
   closureMapping.ClosureTask closureToClassMapper;
   TypeCheckerTask checker;
-  IrBuilderTask irBuilder;
   ti.TypesTask typesTask;
   Backend backend;
 
   GenericTask reuseLibraryTask;
 
   /// The constant environment for the frontend interpretation of compile-time
   /// constants.
   ConstantEnvironment constants;
 
   EnqueueTask enqueuer;
@@ skipping 135 matching lines @@
     tasks = [
       libraryLoader = new LibraryLoaderTask(this),
       serialization = new SerializationTask(this),
       scanner = new ScannerTask(this),
       dietParser = new DietParserTask(this),
       parser = new ParserTask(this),
       patchParser = new PatchParserTask(this),
       resolver = new ResolverTask(this, backend.constantCompilerTask),
       closureToClassMapper = new closureMapping.ClosureTask(this),
       checker = new TypeCheckerTask(this),
-      irBuilder = new IrBuilderTask(this, backend.sourceInformationStrategy),
       typesTask = new ti.TypesTask(this),
       constants = backend.constantCompilerTask,
       deferredLoadTask = new DeferredLoadTask(this),
       mirrorUsageAnalyzerTask = new MirrorUsageAnalyzerTask(this),
       enqueuer = new EnqueueTask(this),
       dumpInfoTask = new DumpInfoTask(this),
       reuseLibraryTask = new GenericTask('Reuse library', this),
     ];
 
     tasks.addAll(backend.tasks);
@@ skipping 1234 matching lines @@
 
   @override
   InterfaceType streamType([DartType elementType]) {
     InterfaceType type = streamClass.computeType(compiler);
     if (elementType == null) {
       return streamClass.rawType;
     }
     return type.createInstantiation([elementType]);
   }
 }