[compiler] Remove redundant unoptimized compile trigger.

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/ast-numbering.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 1070 matching lines @@
       if (!osr_ast_id.IsNone()) {
         PrintF(" at OSR AST id %d", osr_ast_id.ToInt());
       }
       PrintF("]\n");
     }
     return cached_code;
   }
 
   DCHECK(AllowCompilation::IsAllowed(isolate));
 
-  if (!shared->is_compiled() ||
-      shared->scope_info() == ScopeInfo::Empty(isolate)) {
-    // The function was never compiled. Compile it unoptimized first.
-    // TODO(titzer): reuse the AST and scope info from this compile.
-    CompilationInfoWithZone unoptimized(function);
-    unoptimized.EnableDeoptimizationSupport();
-    Handle<Code> unoptimized_code;
-    if (!GetUnoptimizedCodeCommon(&unoptimized).ToHandle(&unoptimized_code)) {
-      return MaybeHandle<Code>();
-    }
-    shared->ReplaceCode(*unoptimized_code);
+  if (shared->is_compiled()) {
+    shared->code()->set_profiler_ticks(0);
   }
 
-  shared->code()->set_profiler_ticks(0);
-
   // TODO(mstarzinger): We cannot properly deserialize a scope chain containing
   // an eval scope and hence would fail at parsing the eval source again.
   if (shared->disable_optimization_reason() == kEval) {
     return MaybeHandle<Code>();
   }
 
   // TODO(mstarzinger): We cannot properly deserialize a scope chain for the
   // builtin context, hence Genesis::InstallExperimentalNatives would fail.
   if (shared->is_toplevel() && isolate->bootstrapper()->IsActive()) {
     return MaybeHandle<Code>();
@@ skipping 858 matching lines @@
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate()).PrintProgram(literal()));
 }
 #endif
 
 }  // namespace internal
 }  // namespace v8