[turbofan] Introduce lazy bailout, masked as a call.

src/compiler/arm/code-generator-arm.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/code-generator.h"
 
 #include "src/arm/macro-assembler-arm.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 366 matching lines @@
         __ ldr(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset));
         __ cmp(cp, kScratchReg);
         __ Assert(eq, kWrongFunctionContext);
       }
       AssembleDeconstructActivationRecord();
       __ ldr(ip, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
       __ Jump(ip);
       DCHECK_EQ(LeaveCC, i.OutputSBit());
       break;
     }
+    case kArchLazyBailout: {
+      EnsureSpaceForLazyDeopt();
+      RecordCallPosition(instr);
+      break;
+    }
     case kArchPrepareCallCFunction: {
       int const num_parameters = MiscField::decode(instr->opcode());
       __ PrepareCallCFunction(num_parameters, kScratchReg);
       break;
     }
     case kArchCallCFunction: {
       int const num_parameters = MiscField::decode(instr->opcode());
       if (instr->InputAt(0)->IsImmediate()) {
         ExternalReference ref = i.InputExternalReference(0);
         __ CallCFunction(ref, num_parameters);
@@ skipping 879 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8