Collect type profile for DevTools.

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/compiler.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "src/asmjs/asm-js.h"
@@ skipping 460 matching lines @@
   }
   if (literal->flags() & AstProperties::kMustUseIgnitionTurbo) {
     shared_info->set_must_use_ignition_turbo(true);
   }
 }
 
 bool Renumber(ParseInfo* parse_info,
               Compiler::EagerInnerFunctionLiterals* eager_literals) {
   RuntimeCallTimerScope runtimeTimer(parse_info->isolate(),
                                      &RuntimeCallStats::CompileRenumber);
+
+  // CollectTypeProfile uses its own feedback slots. If we have existing
+  // FeedbackMetadata, we can only collect type profile, if the feedback vector
+  // has the appropriate slots.
+  bool collect_type_profile;
+  if (parse_info->shared_info().is_null() ||
+      parse_info->shared_info()->feedback_metadata()->length() == 0) {
+    collect_type_profile = FLAG_type_profile &&
+                           parse_info->script()->type() == Script::TYPE_NORMAL;
+  } else {
+    collect_type_profile =
+        parse_info->shared_info()->feedback_metadata()->HasTypeProfileSlot();
+  }
+
   if (!AstNumbering::Renumber(
           parse_info->isolate()->stack_guard()->real_climit(),
-          parse_info->zone(), parse_info->literal(), eager_literals)) {
+          parse_info->zone(), parse_info->literal(), eager_literals,
+          collect_type_profile)) {
     return false;
   }
   if (!parse_info->shared_info().is_null()) {
     SetSharedFunctionFlagsFromLiteral(parse_info->literal(),
                                       parse_info->shared_info());
   }
   return true;
 }
 
 bool GenerateUnoptimizedCode(CompilationInfo* info) {
@@ skipping 1459 matching lines @@
   }
 
   if (shared->is_compiled()) {
     // TODO(mvstanton): pass pretenure flag to EnsureLiterals.
     JSFunction::EnsureLiterals(function);
   }
 }
 
 }  // namespace internal
 }  // namespace v8