message: take gep 0 as pass through for statistic purposes
diff: @@ -2894,9 +2894,11 @@ const ConversionOp *isCast(ConversionOp::Op op, const Value &v) {
  Value* isNoOp(const Value &v) {
  if (isCast(ConversionOp::BitCast, v))
  - return &dynamic_cast<const ConversionOp *>(&v)->getValue();
  + return &static_cast<const ConversionOp*>(&v)->getValue();
  +
  + if (auto gep = dynamic_cast<const GEP*>(&v))
  + return gep->getMaxGEPOffset() == 0 ? &gep->getPtr() : nullptr;
  - // TODO: gep ptr, 0
  return nullptr;
  }
  }
  