llvm-project/polly/lib/External/isl/test_inputs/codegen/cloog/esced.c

for (int c0 = 1; c0 <= m; c0 += 1) {
  S1(c0);
  for (int c1 = 1; c1 <= n; c1 += 1)
    S2(c0, c1);
}