[Tracing] Re-add trace-events used by metrics accidentally removed.

src/deoptimizer.cc

 // Copyright 2013 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/deoptimizer.h"
 
 #include <memory>
 
 #include "src/accessors.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 343 matching lines @@
     // ignore all slots that might have been recorded on it.
     isolate->heap()->mark_compact_collector()->InvalidateCode(codes[i]);
   }
 }
 
 
 void Deoptimizer::DeoptimizeAll(Isolate* isolate) {
   RuntimeCallTimerScope runtimeTimer(isolate,
                                      &RuntimeCallStats::DeoptimizeCode);
   TimerEventScope<TimerEventDeoptimizeCode> timer(isolate);
+  TRACE_EVENT0("v8", "V8.DeoptimizeCode");
   TRACE_EVENT_RUNTIME_CALL_STATS_TRACING_SCOPED(
       isolate, &tracing::TraceEventStatsTable::DeoptimizeCode);
   if (FLAG_trace_deopt) {
     CodeTracer::Scope scope(isolate->GetCodeTracer());
     PrintF(scope.file(), "[deoptimize all code in all contexts]\n");
   }
   DisallowHeapAllocation no_allocation;
   // For all contexts, mark all code, then deoptimize.
   Object* context = isolate->heap()->native_contexts_list();
   while (!context->IsUndefined(isolate)) {
     Context* native_context = Context::cast(context);
     MarkAllCodeForContext(native_context);
     DeoptimizeMarkedCodeForContext(native_context);
     context = native_context->next_context_link();
   }
 }
 
 
 void Deoptimizer::DeoptimizeMarkedCode(Isolate* isolate) {
   RuntimeCallTimerScope runtimeTimer(isolate,
                                      &RuntimeCallStats::DeoptimizeCode);
   TimerEventScope<TimerEventDeoptimizeCode> timer(isolate);
+  TRACE_EVENT0("v8", "V8.DeoptimizeCode");
   TRACE_EVENT_RUNTIME_CALL_STATS_TRACING_SCOPED(
       isolate, &tracing::TraceEventStatsTable::DeoptimizeCode);
   if (FLAG_trace_deopt) {
     CodeTracer::Scope scope(isolate->GetCodeTracer());
     PrintF(scope.file(), "[deoptimize marked code in all contexts]\n");
   }
   DisallowHeapAllocation no_allocation;
   // For all contexts, deoptimize code already marked.
   Object* context = isolate->heap()->native_contexts_list();
   while (!context->IsUndefined(isolate)) {
@@ skipping 14 matching lines @@
     element = code->next_code_link();
   }
 }
 
 
 void Deoptimizer::DeoptimizeFunction(JSFunction* function) {
   Isolate* isolate = function->GetIsolate();
   RuntimeCallTimerScope runtimeTimer(isolate,
                                      &RuntimeCallStats::DeoptimizeCode);
   TimerEventScope<TimerEventDeoptimizeCode> timer(isolate);
+  TRACE_EVENT0("v8", "V8.DeoptimizeCode");
   TRACE_EVENT_RUNTIME_CALL_STATS_TRACING_SCOPED(
       isolate, &tracing::TraceEventStatsTable::DeoptimizeCode);
   Code* code = function->code();
   if (code->kind() == Code::OPTIMIZED_FUNCTION) {
     // Mark the code for deoptimization and unlink any functions that also
     // refer to that code. The code cannot be shared across native contexts,
     // so we only need to search one.
     code->set_marked_for_deoptimization(true);
     DeoptimizeMarkedCodeForContext(function->context()->native_context());
   }
@@ skipping 3571 matching lines @@
       CHECK(value_info->IsMaterializedObject());
 
       value_info->value_ =
           Handle<Object>(previously_materialized_objects->get(i), isolate_);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8