[turbofan] Remove support for LazyBailout operators.

src/compiler/x87/code-generator-x87.cc

 // Copyright 2013 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/code-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 467 matching lines @@
       if (FLAG_debug_code && FLAG_enable_slow_asserts) {
         __ VerifyX87StackDepth(1);
       }
       __ fstp(0);
       int stack_param_delta = i.InputInt32(instr->InputCount() - 1);
       AssembleDeconstructActivationRecord(stack_param_delta);
       __ jmp(FieldOperand(func, JSFunction::kCodeEntryOffset));
       frame_access_state()->ClearSPDelta();
       break;
     }
-    case kArchLazyBailout: {
-      DoEnsureSpaceForLazyDeopt(info(), masm(), last_lazy_deopt_pc_);
-      RecordCallPosition(instr);
-      // Lazy Bailout entry, need to re-initialize FPU state.
-      __ fninit();
-      __ fld1();
-      break;
-    }
     case kArchPrepareCallCFunction: {
       // Frame alignment requires using FP-relative frame addressing.
       frame_access_state()->SetFrameAccessToFP();
       int const num_parameters = MiscField::decode(instr->opcode());
       __ PrepareCallCFunction(num_parameters, i.TempRegister(0));
       break;
     }
     case kArchPrepareTailCall:
       AssemblePrepareTailCall(i.InputInt32(instr->InputCount() - 1));
       break;
@@ skipping 1736 matching lines @@
 void CodeGenerator::EnsureSpaceForLazyDeopt() {
   is_handler_entry_point = true;
   DoEnsureSpaceForLazyDeopt(info(), masm(), last_lazy_deopt_pc_);
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8