1for (int c1 = 1; c1 <= M; c1 += 1)
2 S2(c1);
3for (int c0 = 2; c0 <= M; c0 += 1) {
4 for (int c2 = 1; c2 < c0; c2 += 1)
5 S1(c0, c2);
6 for (int c2 = c0 + 1; c2 <= M; c2 += 1)
7 for (int c3 = 1; c3 < c0; c3 += 1)
8 S3(c0, c2, c3);
9 for (int c1 = 1; c1 < c0; c1 += 1)
10 S4(c1, c0);
11}
12

source code of polly/lib/External/isl/test_inputs/codegen/cloog/yosr2.c