1for (int c0 = 1; c0 <= N; c0 += 1)
2 for (int c1 = 0; c1 <= min(min(M, c0), N - c0); c1 += 1)
3 S1(c0, c1);
4

source code of polly/lib/External/isl/test_inputs/codegen/cloog/min-1-1.c