1if (N >= 1) {
2 for (int c1 = 1; c1 <= M; c1 += 1)
3 S1(1, c1);
4 for (int c0 = 2; c0 <= N; c0 += 1) {
5 for (int c1 = 1; c1 <= M; c1 += 1)
6 S2(c0 - 1, c1);
7 for (int c1 = 1; c1 <= M; c1 += 1)
8 S1(c0, c1);
9 }
10 for (int c1 = 1; c1 <= M; c1 += 1)
11 S2(N, c1);
12}
13

source code of polly/lib/External/isl/test_inputs/codegen/cloog/reservoir-fusion2.c