[turbofan] Only run TypeHintAnalysis when --turbo-type-feedback is on.

There's no point in trying to extract the type hints from the
fullcodegen CompareICs, BinaryOpICs and ToBooleanICs if the
feedback is not consumed (which is guarded by the flag).

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2048543002
Cr-Commit-Position: refs/heads/master@{#36768}

src/compiler/pipeline.cc

@@ -599,10 +599,10 @@ PipelineCompilationJob::Status PipelineCompilationJob::CreateGraphImpl() {
   if (!info()->shared_info()->asm_function() || FLAG_turbo_asm_deoptimization) {
     info()->MarkAsDeoptimizationEnabled();
   }
-  if (info()->is_deoptimization_enabled() && FLAG_turbo_type_feedback) {
-    info()->MarkAsTypeFeedbackEnabled();
-  }
   if (!info()->is_optimizing_from_bytecode()) {
+    if (info()->is_deoptimization_enabled() && FLAG_turbo_type_feedback) {
+      info()->MarkAsTypeFeedbackEnabled();
+    }
     if (!Compiler::EnsureDeoptimizationSupport(info())) return FAILED;
   }
 
@@ -724,7 +724,7 @@ struct TypeHintAnalysisPhase {
   static const char* phase_name() { return "type hint analysis"; }
 
   void Run(PipelineData* data, Zone* temp_zone) {
-    if (!data->info()->is_optimizing_from_bytecode()) {
+    if (data->info()->is_type_feedback_enabled()) {
       TypeHintAnalyzer analyzer(data->graph_zone());
       Handle<Code> code(data->info()->shared_info()->code(), data->isolate());
       TypeHintAnalysis* type_hint_analysis = analyzer.Analyze(code);