PATCH (not to be comitted): Support for printing instruction statistics

runtime/vm/intermediate_language.cc

 // Copyright (c) 2013, 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/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/bootstrap.h"
 #include "vm/compiler.h"
 #include "vm/constant_propagator.h"
 #include "vm/cpu.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_allocator.h"
 #include "vm/flow_graph_builder.h"
 #include "vm/flow_graph_compiler.h"
 #include "vm/flow_graph_range_analysis.h"
 #include "vm/locations.h"
 #include "vm/method_recognizer.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/os.h"
 #include "vm/regexp_assembler_ir.h"
 #include "vm/resolver.h"
 #include "vm/scopes.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
+#include "vm/code_statistics.h"
 
 #include "vm/il_printer.h"
 
 namespace dart {
 
 DEFINE_FLAG(bool,
             propagate_ic_data,
             true,
             "Propagate IC data from unoptimized to optimized IC calls.");
 DEFINE_FLAG(bool,
@@ skipping 3105 matching lines @@
               ic_data().GetTargetAt(0))) != MethodRecognizer::kUnknown);
 }
 
 
 // DBC does not support optimizing compiler and thus doesn't emit
 // PolymorphicInstanceCallInstr.
 #if !defined(TARGET_ARCH_DBC)
 void PolymorphicInstanceCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   ASSERT(ic_data().NumArgsTested() == 1);
   if (!with_checks()) {
+    compiler->SpecialStatsBegin(
+        CombinedCodeStatistics::kPolymorphicInstanceCallAsStaticCall);
     ASSERT(ic_data().HasOneTarget());
     const Function& target = Function::ZoneHandle(ic_data().GetTargetAt(0));
     compiler->GenerateStaticCall(deopt_id(), instance_call()->token_pos(),
                                  target, instance_call()->ArgumentCount(),
                                  instance_call()->argument_names(), locs(),
                                  ICData::Handle());
+    compiler->SpecialStatsEnd(
+        CombinedCodeStatistics::kPolymorphicInstanceCallAsStaticCall);
     return;
   }
 
   compiler->EmitPolymorphicInstanceCall(
       ic_data(), instance_call()->ArgumentCount(),
       instance_call()->argument_names(), deopt_id(),
       instance_call()->token_pos(), locs(), complete());
 }
 #endif
 
@@ skipping 763 matching lines @@
   set_native_c_function(native_function);
   function().SetIsNativeAutoSetupScope(auto_setup_scope);
   Dart_NativeEntryResolver resolver = library.native_entry_resolver();
   bool is_bootstrap_native = Bootstrap::IsBootstapResolver(resolver);
   set_is_bootstrap_native(is_bootstrap_native);
 }
 
 #undef __
 
 }  // namespace dart