CpuProfiler: simplify inlined function info magic.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 2e07a671d892ecdfca81564f3686906da3e7ef29..2aceedbd95de7822011d2444e3f9af6b9c995c24 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -118,10 +118,8 @@ void CompilationInfo::Initialize(Isolate* isolate,
                    ? new List<OffsetRange>(2) : NULL;
   if (FLAG_hydrogen_track_positions) {
     inlined_function_infos_ = new List<InlinedFunctionInfo>(5);
-    inlining_id_to_function_id_ = new List<int>(5);
   } else {
     inlined_function_infos_ = NULL;
-    inlining_id_to_function_id_ = NULL;
   }
 
   for (int i = 0; i < DependentCode::kGroupCount; i++) {
@@ -163,7 +161,6 @@ CompilationInfo::~CompilationInfo() {
   delete deferred_handles_;
   delete no_frame_ranges_;
   delete inlined_function_infos_;
-  delete inlining_id_to_function_id_;
 #ifdef DEBUG
   // Check that no dependent maps have been added or added dependent maps have
   // been rolled back or committed.
@@ -277,52 +274,46 @@ bool CompilationInfo::is_simple_parameter_list() {
 
 
 int CompilationInfo::TraceInlinedFunction(Handle<SharedFunctionInfo> shared,
-                                          SourcePosition position) {
+                                          SourcePosition position,
+                                          int parent_id) {
   DCHECK(FLAG_hydrogen_track_positions);
-
   DCHECK(inlined_function_infos_);
-  DCHECK(inlining_id_to_function_id_);
-  int id = 0;
-  for (; id < inlined_function_infos_->length(); id++) {
-    if (inlined_function_infos_->at(id).shared().is_identical_to(shared)) {
-      break;
-    }
-  }
-  if (id == inlined_function_infos_->length()) {
-    inlined_function_infos_->Add(InlinedFunctionInfo(shared));
-
-    if (!shared->script()->IsUndefined()) {
-      Handle<Script> script(Script::cast(shared->script()));
-      if (!script->source()->IsUndefined()) {
-        CodeTracer::Scope tracing_scope(isolate()->GetCodeTracer());
-        OFStream os(tracing_scope.file());
-        os << "--- FUNCTION SOURCE (" << shared->DebugName()->ToCString().get()
-           << ") id{" << optimization_id() << "," << id << "} ---\n";
-        {
-          DisallowHeapAllocation no_allocation;
-          int start = shared->start_position();
-          int len = shared->end_position() - start;
-          String::SubStringRange source(String::cast(script->source()), start,
-                                        len);
-          for (const auto& c : source) {
-            os << AsReversiblyEscapedUC16(c);
-          }
-        }
 
-        os << "\n--- END ---\n";
+  int inline_id = inlined_function_infos_->length();
+  InlinedFunctionInfo info(parent_id, position, UnboundScript::kNoScriptId,
+      shared->start_position());
+  if (!shared->script()->IsUndefined()) {
+    Handle<Script> script(Script::cast(shared->script()));
+    info.script_id = script->id()->value();
+
+    if (!script->source()->IsUndefined()) {
+      CodeTracer::Scope tracing_scope(isolate()->GetCodeTracer());
+      OFStream os(tracing_scope.file());
+      os << "--- FUNCTION SOURCE (" << shared->DebugName()->ToCString().get()
+         << ") id{" << optimization_id() << "," << inline_id << "} ---\n";
+      {
+        DisallowHeapAllocation no_allocation;
+        int start = shared->start_position();
+        int len = shared->end_position() - start;
+        String::SubStringRange source(String::cast(script->source()), start,
+                                      len);
+        for (const auto& c : source) {
+          os << AsReversiblyEscapedUC16(c);
+        }
       }
+
+      os << "\n--- END ---\n";
     }
   }
 
-  int inline_id = inlining_id_to_function_id_->length();
-  inlining_id_to_function_id_->Add(id);
+  inlined_function_infos_->Add(info);
 
   if (inline_id != 0) {
     CodeTracer::Scope tracing_scope(isolate()->GetCodeTracer());
     OFStream os(tracing_scope.file());
     os << "INLINE (" << shared->DebugName()->ToCString().get() << ") id{"
-       << optimization_id() << "," << id << "} AS " << inline_id << " AT "
-       << position << std::endl;
+       << optimization_id() << "," << inline_id << "} AS " << inline_id
+       << " AT " << position << std::endl;
   }
 
   return inline_id;