[turbofan] Disable select matching due to bug manifesting on arm.

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/platform/elapsed-timer.h"
@@ skipping 580 matching lines @@
     graph_reducer.ReduceGraph();
   }
 };
 
 
 struct EarlyControlReductionPhase {
   static const char* phase_name() { return "early control reduction"; }
   void Run(PipelineData* data, Zone* temp_zone) {
     SourcePositionTable::Scope pos(data->source_positions(),
                                    SourcePosition::Unknown());
-    ControlReducer::ReduceGraph(temp_zone, data->jsgraph(), data->common(), 1);
+    // TODO(turbofan): enable select matching in early control reduction.
+    ControlReducer::ReduceGraph(temp_zone, data->jsgraph(), data->common(), 0);
   }
 };
 
 
 struct LateControlReductionPhase {
   static const char* phase_name() { return "late control reduction"; }
   void Run(PipelineData* data, Zone* temp_zone) {
     SourcePositionTable::Scope pos(data->source_positions(),
                                    SourcePosition::Unknown());
     ControlReducer::ReduceGraph(temp_zone, data->jsgraph(), data->common(), 0);
@@ skipping 625 matching lines @@
 
   if (FLAG_trace_turbo && !data->MayHaveUnverifiableGraph()) {
     TurboCfgFile tcf(data->isolate());
     tcf << AsC1VAllocator("CodeGen", data->register_allocator());
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8