Remove overzealous checking of --cache-optimized-code flag.

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 "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 670 matching lines @@
   // Update the code and feedback vector for the shared function info.
   shared->ReplaceCode(*info->code());
   shared->set_feedback_vector(*info->feedback_vector());
 
   return info->code();
 }
 
 
 MUST_USE_RESULT static MaybeHandle<Code> GetCodeFromOptimizedCodeMap(
     Handle<JSFunction> function, BailoutId osr_ast_id) {
-  if (FLAG_cache_optimized_code) {
-    Handle<SharedFunctionInfo> shared(function->shared());
-    DisallowHeapAllocation no_gc;
-    CodeAndLiterals cached = shared->SearchOptimizedCodeMap(
-        function->context()->native_context(), osr_ast_id);
-    if (cached.code != nullptr) {
-      // Caching of optimized code enabled and optimized code found.
-      if (cached.literals != nullptr) function->set_literals(cached.literals);
-      DCHECK(!cached.code->marked_for_deoptimization());
-      DCHECK(function->shared()->is_compiled());
-      return Handle<Code>(cached.code);
-    }
+  Handle<SharedFunctionInfo> shared(function->shared());
+  DisallowHeapAllocation no_gc;
+  CodeAndLiterals cached = shared->SearchOptimizedCodeMap(
+      function->context()->native_context(), osr_ast_id);
+  if (cached.code != nullptr) {
+    // Caching of optimized code enabled and optimized code found.
+    if (cached.literals != nullptr) function->set_literals(cached.literals);
+    DCHECK(!cached.code->marked_for_deoptimization());
+    DCHECK(function->shared()->is_compiled());
+    return Handle<Code>(cached.code);
   }
   return MaybeHandle<Code>();
 }
 
 
 static void InsertCodeIntoOptimizedCodeMap(CompilationInfo* info) {
   Handle<Code> code = info->code();
   if (code->kind() != Code::OPTIMIZED_FUNCTION) return;  // Nothing to do.
 
   // Context specialization folds-in the context, so no sharing can occur.
@@ skipping 853 matching lines @@
 
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(function()));
 }
 #endif
 }  // namespace internal
 }  // namespace v8