polly/lib/External/isl/test_inputs/codegen/cloog/dot.c

for (int c1 = 1; c1 <= M; c1 += 1)
  S1(0, c1);
for (int c0 = 1; c0 <= N; c0 += 1)
  for (int c1 = 1; c1 <= M; c1 += 1)
    S2(c0, c1);