Remove kOsrCompileFailed bailout.

src/compiler/osr.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.h"
 #include "src/compiler/all-nodes.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/control-reducer.h"
 #include "src/compiler/frame.h"
 #include "src/compiler/graph.h"
@@ skipping 267 matching lines @@
                                     Bounds::Both(phi_bounds, osr_bounds, zone));
         }
         unknown = false;
       }
     }
     if (unknown) NodeProperties::SetBounds(osr_value, Bounds::Unbounded(zone));
   }
 }
 
 
-bool OsrHelper::Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
+void OsrHelper::Deconstruct(JSGraph* jsgraph, CommonOperatorBuilder* common,
                             Zone* tmp_zone) {
   Graph* graph = jsgraph->graph();
   Node* osr_normal_entry = nullptr;
   Node* osr_loop_entry = nullptr;
   Node* osr_loop = nullptr;
 
   for (Node* node : graph->start()->uses()) {
     if (node->opcode() == IrOpcode::kOsrLoopEntry) {
       osr_loop_entry = node;  // found the OSR loop entry
     } else if (node->opcode() == IrOpcode::kOsrNormalEntry) {
       osr_normal_entry = node;
     }
   }
 
   if (osr_loop_entry == nullptr) {
     // No OSR entry found, do nothing.
     CHECK(osr_normal_entry);
-    return true;
+    return;
   }
 
   for (Node* use : osr_loop_entry->uses()) {
     if (use->opcode() == IrOpcode::kLoop) {
       CHECK(!osr_loop);             // should be only one OSR loop.
       osr_loop = use;               // found the OSR loop.
     }
   }
 
   CHECK(osr_loop);  // Should have found the OSR loop.
@@ skipping 21 matching lines @@
   // Normally the control reducer removes loops whose first input is dead,
   // but we need to avoid that because the osr_loop is reachable through
   // the second input, so reduce it and its phis manually.
   osr_loop->ReplaceInput(0, dead);
   Node* node = ControlReducer::ReduceMerge(jsgraph, common, osr_loop);
   if (node != osr_loop) osr_loop->ReplaceUses(node);
 
   // Run the normal control reduction, which naturally trims away the dead
   // parts of the graph.
   ControlReducer::ReduceGraph(tmp_zone, jsgraph, common);
-
-  return true;
 }
 
 
 void OsrHelper::SetupFrame(Frame* frame) {
   // The optimized frame will subsume the unoptimized frame. Do so by reserving
   // the first spill slots.
   frame->ReserveSpillSlots(UnoptimizedFrameSlots());
   // The frame needs to be adjusted by the number of unoptimized frame slots.
   frame->SetOsrStackSlotCount(static_cast<int>(UnoptimizedFrameSlots()));
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8