[turbofan] Introduce DeoptimizeIf And DeoptimizeUnless common operators.

src/compiler/instruction.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/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction.h"
 #include "src/compiler/schedule.h"
 #include "src/compiler/state-values-utils.h"
 
@@ skipping 375 matching lines @@
   return os;
 }
 
 
 std::ostream& operator<<(std::ostream& os, const FlagsMode& fm) {
   switch (fm) {
     case kFlags_none:
       return os;
     case kFlags_branch:
       return os << "branch";
+    case kFlags_deoptimize:
+      return os << "deoptimize";
     case kFlags_set:
       return os << "set";
   }
   UNREACHABLE();
   return os;
 }
 
 
 std::ostream& operator<<(std::ostream& os, const FlagsCondition& fc) {
   switch (fc) {
@@ skipping 574 matching lines @@
   }
   for (int i = 0; i < code.InstructionBlockCount(); i++) {
     printable.sequence_->PrintBlock(printable.register_configuration_, i);
   }
   return os;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8