[turbofan] Run EarlyOptimizationPhase after we nuked the types.

src/compiler/pipeline.cc

 // Copyright 2014 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/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/base/adapters.h"
@@ skipping 1399 matching lines @@
     }
 
     if (FLAG_turbo_escape) {
       Run<EscapeAnalysisPhase>();
       RunPrintAndVerify("Escape Analysed");
     }
 
     // Select representations.
     Run<RepresentationSelectionPhase>();
     RunPrintAndVerify("Representations selected");
-
-    // Run early optimization pass.
-    Run<EarlyOptimizationPhase>();
-    RunPrintAndVerify("Early optimized", true);
   }
 
 #ifdef DEBUG
   // From now on it is invalid to look at types on the nodes, because:
   //
   //  (a) The remaining passes (might) run concurrent to the main thread and
   //      therefore must not access the Heap or the Isolate in an uncontrolled
   //      way (as done by the type system), and
   //  (b) the types on the nodes might not make sense after representation
   //      selection due to the way we handle truncations; if we'd want to look
   //      at types afterwards we'd essentially need to re-type (large portions
   //      of) the graph.
   //
   // In order to catch bugs related to type access after this point we remove
   // the types from the nodes at this point (currently only in Debug builds).
   Run<UntyperPhase>();
   RunPrintAndVerify("Untyped", true);
 #endif
 
+  // Run early optimization pass.
+  Run<EarlyOptimizationPhase>();
+  RunPrintAndVerify("Early optimized", true);
+
   data->EndPhaseKind();
 
   return true;
 }
 
 bool PipelineImpl::OptimizeGraph(Linkage* linkage) {
   PipelineData* data = this->data_;
 
   data->BeginPhaseKind("block building");
 
@@ skipping 346 matching lines @@
   data->DeleteRegisterAllocationZone();
 }
 
 CompilationInfo* PipelineImpl::info() const { return data_->info(); }
 
 Isolate* PipelineImpl::isolate() const { return info()->isolate(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8