[turbofan] Add initial support for SOFT deopts.

src/compiler/js-call-reducer.cc

 // Copyright 2015 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/js-call-reducer.h"
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-matchers.h"
 #include "src/objects-inl.h"
 #include "src/type-feedback-vector-inl.h"
@@ skipping 280 matching lines @@
     }
 
     // Check that the {target} is still the {array_function}.
     Node* check = effect =
         graph()->NewNode(javascript()->StrictEqual(), target, array_function,
                          context, effect, control);
     Node* branch =
         graph()->NewNode(common()->Branch(BranchHint::kTrue), check, control);
     Node* if_false = graph()->NewNode(common()->IfFalse(), branch);
     Node* deoptimize =
-        graph()->NewNode(common()->Deoptimize(), frame_state, effect, if_false);
+        graph()->NewNode(common()->Deoptimize(DeoptimizeKind::kEager),
+                         frame_state, effect, if_false);
     // TODO(bmeurer): This should be on the AdvancedReducer somehow.
     NodeProperties::MergeControlToEnd(graph(), common(), deoptimize);
     control = graph()->NewNode(common()->IfTrue(), branch);
 
     // Turn the {node} into a {JSCreateArray} call.
     NodeProperties::ReplaceValueInput(node, array_function, 0);
     NodeProperties::ReplaceEffectInput(node, effect);
     NodeProperties::ReplaceControlInput(node, control);
     return ReduceArrayConstructor(node);
   } else if (feedback->IsWeakCell()) {
     Handle<WeakCell> cell = Handle<WeakCell>::cast(feedback);
     if (cell->value()->IsJSFunction()) {
       Node* target_function =
           jsgraph()->Constant(handle(cell->value(), isolate()));
 
       // Check that the {target} is still the {target_function}.
       Node* check = effect =
           graph()->NewNode(javascript()->StrictEqual(), target, target_function,
                            context, effect, control);
       Node* branch =
           graph()->NewNode(common()->Branch(BranchHint::kTrue), check, control);
       Node* if_false = graph()->NewNode(common()->IfFalse(), branch);
-      Node* deoptimize = graph()->NewNode(common()->Deoptimize(), frame_state,
-                                          effect, if_false);
+      Node* deoptimize =
+          graph()->NewNode(common()->Deoptimize(DeoptimizeKind::kEager),
+                           frame_state, effect, if_false);
       // TODO(bmeurer): This should be on the AdvancedReducer somehow.
       NodeProperties::MergeControlToEnd(graph(), common(), deoptimize);
       control = graph()->NewNode(common()->IfTrue(), branch);
 
       // Specialize the JSCallFunction node to the {target_function}.
       NodeProperties::ReplaceValueInput(node, target_function, 0);
       NodeProperties::ReplaceEffectInput(node, effect);
       NodeProperties::ReplaceControlInput(node, control);
 
       // Try to further reduce the JSCallFunction {node}.
@@ skipping 96 matching lines @@
     }
 
     // Check that the {target} is still the {array_function}.
     Node* check = effect =
         graph()->NewNode(javascript()->StrictEqual(), target, array_function,
                          context, effect, control);
     Node* branch =
         graph()->NewNode(common()->Branch(BranchHint::kTrue), check, control);
     Node* if_false = graph()->NewNode(common()->IfFalse(), branch);
     Node* deoptimize =
-        graph()->NewNode(common()->Deoptimize(), frame_state, effect, if_false);
+        graph()->NewNode(common()->Deoptimize(DeoptimizeKind::kEager),
+                         frame_state, effect, if_false);
     // TODO(bmeurer): This should be on the AdvancedReducer somehow.
     NodeProperties::MergeControlToEnd(graph(), common(), deoptimize);
     control = graph()->NewNode(common()->IfTrue(), branch);
 
     // Turn the {node} into a {JSCreateArray} call.
     NodeProperties::ReplaceEffectInput(node, effect);
     NodeProperties::ReplaceControlInput(node, control);
     NodeProperties::RemoveFrameStateInput(node, 1);
     for (int i = arity; i > 0; --i) {
       NodeProperties::ReplaceValueInput(
           node, NodeProperties::GetValueInput(node, i), i + 1);
     }
     NodeProperties::ReplaceValueInput(node, new_target, 1);
     NodeProperties::ChangeOp(node, javascript()->CreateArray(arity, site));
     return Changed(node);
   } else if (feedback->IsWeakCell()) {
     Handle<WeakCell> cell = Handle<WeakCell>::cast(feedback);
     if (cell->value()->IsJSFunction()) {
       Node* target_function =
           jsgraph()->Constant(handle(cell->value(), isolate()));
 
       // Check that the {target} is still the {target_function}.
       Node* check = effect =
           graph()->NewNode(javascript()->StrictEqual(), target, target_function,
                            context, effect, control);
       Node* branch =
           graph()->NewNode(common()->Branch(BranchHint::kTrue), check, control);
       Node* if_false = graph()->NewNode(common()->IfFalse(), branch);
-      Node* deoptimize = graph()->NewNode(common()->Deoptimize(), frame_state,
-                                          effect, if_false);
+      Node* deoptimize =
+          graph()->NewNode(common()->Deoptimize(DeoptimizeKind::kEager),
+                           frame_state, effect, if_false);
       // TODO(bmeurer): This should be on the AdvancedReducer somehow.
       NodeProperties::MergeControlToEnd(graph(), common(), deoptimize);
       control = graph()->NewNode(common()->IfTrue(), branch);
 
       // Specialize the JSCallConstruct node to the {target_function}.
       NodeProperties::ReplaceValueInput(node, target_function, 0);
       NodeProperties::ReplaceEffectInput(node, effect);
       NodeProperties::ReplaceControlInput(node, control);
       if (target == new_target) {
         NodeProperties::ReplaceValueInput(node, target_function, arity + 1);
@@ skipping 27 matching lines @@
 }
 
 
 JSOperatorBuilder* JSCallReducer::javascript() const {
   return jsgraph()->javascript();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8