[turbofan] Add support for eager/soft deoptimization reasons.

src/compiler/instruction-selector.h

 // 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.
 
 #ifndef V8_COMPILER_INSTRUCTION_SELECTOR_H_
 #define V8_COMPILER_INSTRUCTION_SELECTOR_H_
 
 #include <map>
 
 #include "src/compiler/common-operator.h"
@@ skipping 87 matching lines @@
                     InstructionOperand* inputs, size_t temp_count = 0,
                     InstructionOperand* temps = nullptr);
   Instruction* Emit(Instruction* instr);
 
   // ===========================================================================
   // ===== Architecture-independent deoptimization exit emission methods. ======
   // ===========================================================================
 
   Instruction* EmitDeoptimize(InstructionCode opcode, InstructionOperand output,
                               InstructionOperand a, InstructionOperand b,
-                              Node* frame_state);
+                              DeoptimizeReason reason, Node* frame_state);
   Instruction* EmitDeoptimize(InstructionCode opcode, size_t output_count,
                               InstructionOperand* outputs, size_t input_count,
-                              InstructionOperand* inputs, Node* frame_state);
+                              InstructionOperand* inputs,
+                              DeoptimizeReason reason, Node* frame_state);
 
   // ===========================================================================
   // ============== Architecture-independent CPU feature methods. ==============
   // ===========================================================================
 
   class Features final {
    public:
     Features() : bits_(0) {}
     explicit Features(unsigned bits) : bits_(bits) {}
     explicit Features(CpuFeature f) : bits_(1u << f) {}
@@ skipping 162 matching lines @@
   void VisitPhi(Node* node);
   void VisitProjection(Node* node);
   void VisitConstant(Node* node);
   void VisitCall(Node* call, BasicBlock* handler = nullptr);
   void VisitDeoptimizeIf(Node* node);
   void VisitDeoptimizeUnless(Node* node);
   void VisitTailCall(Node* call);
   void VisitGoto(BasicBlock* target);
   void VisitBranch(Node* input, BasicBlock* tbranch, BasicBlock* fbranch);
   void VisitSwitch(Node* node, const SwitchInfo& sw);
-  void VisitDeoptimize(DeoptimizeKind kind, Node* value);
+  void VisitDeoptimize(DeoptimizeKind kind, DeoptimizeReason reason,
+                       Node* value);
   void VisitReturn(Node* ret);
   void VisitThrow(Node* value);
 
   void EmitPrepareArguments(ZoneVector<compiler::PushParameter>* arguments,
                             const CallDescriptor* descriptor, Node* node);
 
   void EmitIdentity(Node* node);
   bool CanProduceSignalingNaN(Node* node);
 
   // ===========================================================================
@@ skipping 21 matching lines @@
   IntVector virtual_registers_;
   InstructionScheduler* scheduler_;
   Frame* frame_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_INSTRUCTION_SELECTOR_H_