[turbofan] Connect loops to end via Terminate during graph building.

src/compiler/js-inlining.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/js-inlining.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/compiler/all-nodes.h"
 #include "src/compiler/ast-graph-builder.h"
@@ skipping 157 matching lines @@
   NodeVector values(local_zone_);
   NodeVector effects(local_zone_);
   NodeVector controls(local_zone_);
   for (Node* const input : end->inputs()) {
     switch (input->opcode()) {
       case IrOpcode::kReturn:
         values.push_back(NodeProperties::GetValueInput(input, 0));
         effects.push_back(NodeProperties::GetEffectInput(input));
         controls.push_back(NodeProperties::GetControlInput(input));
         break;
+      case IrOpcode::kDeoptimize:
+      case IrOpcode::kTerminate:
+      case IrOpcode::kThrow:
+        jsgraph_->graph()->end()->AppendInput(jsgraph_->zone(), input);
+        jsgraph_->graph()->end()->set_op(
+            jsgraph_->common()->End(jsgraph_->graph()->end()->InputCount()));
+        break;
       default:
-        // TODO(turbofan): Handle Throw, Terminate and Deoptimize here.
         UNREACHABLE();
         break;
     }
   }
   DCHECK_NE(0u, values.size());
   DCHECK_EQ(values.size(), effects.size());
   DCHECK_EQ(values.size(), controls.size());
   int const input_count = static_cast<int>(controls.size());
   Node* control_output = jsgraph_->graph()->NewNode(
       jsgraph_->common()->Merge(input_count), input_count, &controls.front());
@@ skipping 112 matching lines @@
       }
     }
   }
 
   return InlineCall(node, start, end);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8