[turbofan] introduce Int32/64AbsWithOverflow optional operator

src/compiler/x87/instruction-selector-x87.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/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
 namespace v8 {
@@ skipping 1815 matching lines @@
     addressing_mode = kMode_MRI;
   } else {
     inputs[input_count++] = g.UseUniqueRegister(index);
     addressing_mode = kMode_MR1;
   }
   inputs[input_count++] = g.UseUniqueRegister(value);
   InstructionCode code = opcode | AddressingModeField::encode(addressing_mode);
   Emit(code, 0, nullptr, input_count, inputs);
 }
 
+void InstructionSelector::VisitInt32AbsWithOverflow(Node* node) {
+  UNREACHABLE();
+}
+
+void InstructionSelector::VisitInt64AbsWithOverflow(Node* node) {
+  UNREACHABLE();
+}
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   MachineOperatorBuilder::Flags flags =
       MachineOperatorBuilder::kWord32ShiftIsSafe;
   if (CpuFeatures::IsSupported(POPCNT)) {
     flags |= MachineOperatorBuilder::kWord32Popcnt;
   }
 
   flags |= MachineOperatorBuilder::kFloat32RoundDown |
@@ skipping 10 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8