1for (int c1 = 1; c1 <= M; c1 += 1)
2 S1(0, c1);
3for (int c0 = 1; c0 <= N; c0 += 1)
4 for (int c1 = 1; c1 <= M; c1 += 1)
5 S2(c0, c1);
6

source code of polly/lib/External/isl/test_inputs/codegen/cloog/dot.c