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

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 818 matching lines @@
   DCHECK_LT(virtual_register, VirtualRegisterCount());
   if (virtual_register >= static_cast<int>(representations_.size())) {
     representations_.resize(VirtualRegisterCount(), DefaultRepresentation());
   }
   rep = FilterRepresentation(rep);
   DCHECK_IMPLIES(representations_[virtual_register] != rep,
                  representations_[virtual_register] == DefaultRepresentation());
   representations_[virtual_register] = rep;
 }
 
-
-InstructionSequence::StateId InstructionSequence::AddFrameStateDescriptor(
-    FrameStateDescriptor* descriptor) {
+int InstructionSequence::AddDeoptimizationEntry(
+    FrameStateDescriptor* descriptor, DeoptimizeReason reason) {
   int deoptimization_id = static_cast<int>(deoptimization_entries_.size());
-  deoptimization_entries_.push_back(descriptor);
-  return StateId::FromInt(deoptimization_id);
+  deoptimization_entries_.push_back(DeoptimizationEntry(descriptor, reason));
+  return deoptimization_id;
 }
 
-FrameStateDescriptor* InstructionSequence::GetFrameStateDescriptor(
-    InstructionSequence::StateId state_id) {
-  return deoptimization_entries_[state_id.ToInt()];
+DeoptimizationEntry const& InstructionSequence::GetDeoptimizationEntry(
+    int state_id) {
+  return deoptimization_entries_[state_id];
 }
 
 
-int InstructionSequence::GetFrameStateDescriptorCount() {
-  return static_cast<int>(deoptimization_entries_.size());
-}
-
-
 RpoNumber InstructionSequence::InputRpo(Instruction* instr, size_t index) {
   InstructionOperand* operand = instr->InputAt(index);
   Constant constant =
       operand->IsImmediate()
           ? GetImmediate(ImmediateOperand::cast(operand))
           : GetConstant(ConstantOperand::cast(operand)->virtual_register());
   return constant.ToRpoNumber();
 }
 
 
@@ skipping 159 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