[turbolizer] distinguish optimization attempts

src/compiler/graph-visualizer.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/compiler/graph-visualizer.h"
 
 #include <memory>
 #include <sstream>
 #include <string>
 
@@ skipping 16 matching lines @@
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 std::unique_ptr<char[]> GetVisualizerLogFileName(CompilationInfo* info,
                                                  const char* phase,
                                                  const char* suffix) {
   EmbeddedVector<char, 256> filename(0);
   std::unique_ptr<char[]> debug_name = info->GetDebugName();
   if (strlen(debug_name.get()) > 0) {
-    SNPrintF(filename, "turbo-%s", debug_name.get());
+    if (info->has_shared_info()) {
+      int attempt = info->shared_info()->opt_count();
+      SNPrintF(filename, "turbo-%s-%i", debug_name.get(), attempt);
+    } else {
+      SNPrintF(filename, "turbo-%s", debug_name.get());
+    }
   } else if (info->has_shared_info()) {
-    SNPrintF(filename, "turbo-%p", static_cast<void*>(info));
+    int attempt = info->shared_info()->opt_count();
+    SNPrintF(filename, "turbo-%p-%i", static_cast<void*>(info), attempt);
   } else {
     SNPrintF(filename, "turbo-none-%s", phase);
   }
   EmbeddedVector<char, 256> source_file(0);
   bool source_available = false;
   if (FLAG_trace_file_names && info->parse_info()) {
     Object* source_name = info->script()->name();
     if (source_name->IsString()) {
       String* str = String::cast(source_name);
       if (str->length() > 0) {
@@ skipping 658 matching lines @@
         os << "]";
       }
       os << std::endl;
     }
   }
   return os;
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8