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

src/compiler/common-operator-reducer.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-reducer.h"
 
 #include <algorithm>
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
@@ skipping 104 matching lines @@
         UNREACHABLE();
     }
   }
   return Replace(dead());
 }
 
 Reduction CommonOperatorReducer::ReduceDeoptimizeConditional(Node* node) {
   DCHECK(node->opcode() == IrOpcode::kDeoptimizeIf ||
          node->opcode() == IrOpcode::kDeoptimizeUnless);
   bool condition_is_true = node->opcode() == IrOpcode::kDeoptimizeUnless;
+  DeoptimizeReason reason = DeoptimizeReasonOf(node->op());
   Node* condition = NodeProperties::GetValueInput(node, 0);
   Node* frame_state = NodeProperties::GetValueInput(node, 1);
   Node* effect = NodeProperties::GetEffectInput(node);
   Node* control = NodeProperties::GetControlInput(node);
   // Swap DeoptimizeIf/DeoptimizeUnless on {node} if {cond} is a BooleaNot
   // and use the input to BooleanNot as new condition for {node}.  Note we
   // assume that {cond} was already properly optimized before we get here
   // (as guaranteed by the graph reduction logic).
   if (condition->opcode() == IrOpcode::kBooleanNot) {
     NodeProperties::ReplaceValueInput(node, condition->InputAt(0), 0);
     NodeProperties::ChangeOp(node, condition_is_true
-                                       ? common()->DeoptimizeIf()
-                                       : common()->DeoptimizeUnless());
+                                       ? common()->DeoptimizeIf(reason)
+                                       : common()->DeoptimizeUnless(reason));
     return Changed(node);
   }
   Decision const decision = DecideCondition(condition);
   if (decision == Decision::kUnknown) return NoChange();
   if (condition_is_true == (decision == Decision::kTrue)) {
     ReplaceWithValue(node, dead(), effect, control);
   } else {
-    control = graph()->NewNode(common()->Deoptimize(DeoptimizeKind::kEager),
-                               frame_state, effect, control);
+    control =
+        graph()->NewNode(common()->Deoptimize(DeoptimizeKind::kEager, reason),
+                         frame_state, effect, control);
     // TODO(bmeurer): This should be on the AdvancedReducer somehow.
     NodeProperties::MergeControlToEnd(graph(), common(), control);
     Revisit(graph()->end());
   }
   return Replace(dead());
 }
 
 Reduction CommonOperatorReducer::ReduceMerge(Node* node) {
   DCHECK_EQ(IrOpcode::kMerge, node->opcode());
   //
@@ skipping 246 matching lines @@
   node->ReplaceInput(0, a);
   node->ReplaceInput(1, b);
   node->TrimInputCount(2);
   NodeProperties::ChangeOp(node, op);
   return Changed(node);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8