Function ComposePermutations

tensorflow/compiler/xla/util.cc:130–138

}

std::vector<int64> ComposePermutations(absl::Span<const int64> p1,
                                       absl::Span<const int64> p2) {
  CHECK_EQ(p1.size(), p2.size());
  std::vector<int64> output;
  for (size_t i = 0; i < p1.size(); ++i) {
    output.push_back(p1.at(p2.at(i)));
  }
  return output;
}

bool IsIdentityPermutation(absl::Span<const int64> permutation) {
  for (int64 i = 0; i < permutation.size(); ++i) {