[Complier] Only optimize a function marked for tier-up if it is compiled.

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 862 matching lines @@
           .ToHandle(&cached_code)) {
     if (FLAG_trace_opt) {
       PrintF("[found optimized code for ");
       function->ShortPrint();
       PrintF(" during unoptimized compile]\n");
     }
     DCHECK(function->shared()->is_compiled());
     return cached_code;
   }
 
-  if (function->shared()->marked_for_tier_up()) {
+  if (function->shared()->is_compiled() &&
+      function->shared()->marked_for_tier_up()) {
     DCHECK(FLAG_mark_shared_functions_for_tier_up);
 
     function->shared()->set_marked_for_tier_up(false);
 
     switch (Compiler::NextCompilationTier(*function)) {
       case Compiler::BASELINE: {
         if (FLAG_trace_opt) {
           PrintF("[recompiling function ");
           function->ShortPrint();
           PrintF(
@@ skipping 852 matching lines @@
     DCHECK(shared->is_compiled());
     function->set_literals(cached.literals);
   } else if (shared->is_compiled()) {
     // TODO(mvstanton): pass pretenure flag to EnsureLiterals.
     JSFunction::EnsureLiterals(function);
   }
 }
 
 }  // namespace internal
 }  // namespace v8