CpuProfiler: simplify inlined function info magic.

src/compiler.cc

 // Copyright 2012 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/v8.h"
 
 #include "src/compiler.h"
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 100 matching lines @@
   isolate_ = isolate;
   zone_ = zone;
   deferred_handles_ = NULL;
   code_stub_ = NULL;
   prologue_offset_ = Code::kPrologueOffsetNotSet;
   opt_count_ = has_shared_info() ? shared_info()->opt_count() : 0;
   no_frame_ranges_ = isolate->cpu_profiler()->is_profiling()
                    ? 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++) {
     dependencies_[i] = NULL;
   }
   if (mode == STUB) {
     mode_ = STUB;
     return;
   }
   mode_ = mode;
@@ skipping 21 matching lines @@
         Handle<TypeFeedbackVector>(shared_info()->feedback_vector(), isolate);
   }
 }
 
 
 CompilationInfo::~CompilationInfo() {
   DisableFutureOptimization();
   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.
   for (int i = 0; i < DependentCode::kGroupCount; i++) {
     DCHECK(!dependencies_[i]);
   }
 #endif  // DEBUG
 }
 
 
@@ skipping 93 matching lines @@
   }
 }
 
 
 bool CompilationInfo::is_simple_parameter_list() {
   return scope()->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(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));
+  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 (!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);
-          }
+    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";
-      }
+      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;
 }
 
 
 class HOptimizedGraphBuilderWithPositions: public HOptimizedGraphBuilder {
  public:
   explicit HOptimizedGraphBuilderWithPositions(CompilationInfo* info)
       : HOptimizedGraphBuilder(info) {
@@ skipping 1264 matching lines @@
   parse_info_ = nullptr;
 }
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(function()));
 }
 #endif
 } }  // namespace v8::internal