[osr] Increase Code::profiler_ticks to 28 bits.

src/runtime-profiler.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/runtime-profiler.h"
 
 #include "src/assembler.h"
 #include "src/base/platform/platform.h"
@@ skipping 163 matching lines @@
     if (FLAG_always_osr) {
       AttemptOnStackReplacement(function, Code::kMaxLoopNestingMarker);
       // Fall through and do a normal optimized compile as well.
     } else if (!frame->is_optimized() &&
         (function->IsMarkedForOptimization() ||
          function->IsMarkedForConcurrentOptimization() ||
          function->IsOptimized())) {
       // Attempt OSR if we are still running unoptimized code even though the
       // the function has long been marked or even already been optimized.
       int ticks = shared_code->profiler_ticks();
-      int allowance = kOSRCodeSizeAllowanceBase +
-                      ticks * kOSRCodeSizeAllowancePerTick;
-      if (shared_code->CodeSize() > allowance) {
-        if (ticks < 255) shared_code->set_profiler_ticks(ticks + 1);
+      int64_t allowance =
+          kOSRCodeSizeAllowanceBase +
+          static_cast<int64_t>(ticks) * kOSRCodeSizeAllowancePerTick;
+      if (shared_code->CodeSize() > allowance &&
+          ticks < Code::ProfilerTicksField::kMax) {
+        shared_code->set_profiler_ticks(ticks + 1);
       } else {
         AttemptOnStackReplacement(function);
       }
       continue;
     }
 
     // Only record top-level code on top of the execution stack and
     // avoid optimizing excessively large scripts since top-level code
     // will be executed only once.
     const int kMaxToplevelSourceSize = 10 * 1024;
@@ skipping 57 matching lines @@
     } else {
       shared_code->set_profiler_ticks(ticks + 1);
     }
   }
   any_ic_changed_ = false;
 }
 
 
 }  // namespace internal
 }  // namespace v8