Revert of [turbofan] Run everything after representation selection concurrently.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index f89484d08426b5a06f826b0adbec247e79e7ed03..3ea6c2ba812ef824b2ddadd4ee03040b062c3c94 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -1302,11 +1302,13 @@
   }
 
   // Type the graph.
-  Typer typer(isolate(), data->graph(), info()->is_deoptimization_enabled()
-                                            ? Typer::kDeoptimizationEnabled
-                                            : Typer::kNoFlags,
-              info()->dependencies());
-  Run<TyperPhase>(&typer);
+  base::SmartPointer<Typer> typer;
+  typer.Reset(new Typer(isolate(), data->graph(),
+                        info()->is_deoptimization_enabled()
+                            ? Typer::kDeoptimizationEnabled
+                            : Typer::kNoFlags,
+                        info()->dependencies()));
+  Run<TyperPhase>(typer.get());
   RunPrintAndVerify("Typed");
 
   BeginPhaseKind("lowering");
@@ -1333,32 +1335,35 @@
   Run<EarlyOptimizationPhase>();
   RunPrintAndVerify("Early optimized");
 
-  EndPhaseKind();
-
-  return true;
-}
-
-bool Pipeline::OptimizeGraph(Linkage* linkage) {
-  PipelineData* data = this->data_;
-
-  BeginPhaseKind("block building");
-
   Run<EffectControlLinearizationPhase>();
-  RunPrintAndVerify("Effect and control linearized", true);
+  RunPrintAndVerify("Effect and control linearized");
 
   Run<BranchEliminationPhase>();
-  RunPrintAndVerify("Branch conditions eliminated", true);
+  RunPrintAndVerify("Branch conditions eliminated");
 
   // Optimize control flow.
   if (FLAG_turbo_cf_optimization) {
     Run<ControlFlowOptimizationPhase>();
-    RunPrintAndVerify("Control flow optimized", true);
+    RunPrintAndVerify("Control flow optimized");
   }
 
   // Lower changes that have been inserted before.
   Run<LateOptimizationPhase>();
   // TODO(jarin, rossberg): Remove UNTYPED once machine typing works.
   RunPrintAndVerify("Late optimized", true);
+
+  // Kill the Typer and thereby uninstall the decorator (if any).
+  typer.Reset(nullptr);
+
+  EndPhaseKind();
+
+  return true;
+}
+
+bool Pipeline::OptimizeGraph(Linkage* linkage) {
+  PipelineData* data = this->data_;
+
+  BeginPhaseKind("block building");
 
   Run<LateGraphTrimmingPhase>();
   // TODO(jarin, rossberg): Remove UNTYPED once machine typing works.