message: [XLA::GPU] Do not use the reduction to vector implementation if the result type
  is complex128.
  This is a workaround for b/129698548.
diff: @@ -161,6 +161,12 @@ bool IsReductionToVector(const HloInstruction& reduce) {
  if (HloOpcode::kReduce != reduce.opcode()) {
  return false;
  }
  +
  + // TODO(b/129698548): Remove this check after fixing the bug.
  + if (reduce.shape().element_type() == C128) {
  + return false;
  + }
  +
  const HloInstruction* input = reduce.operand(0);
  std::vector<int64> dims_to_keep;
  for (int64 dim = 0; dim < input->shape().dimensions().size(); ++dim) {
  