1for (int c0 = 0; c0 < ni; c0 += 1)
2 for (int c1 = 0; c1 < nj; c1 += 1) {
3 S_2(c0, c1);
4 for (int c2 = 0; c2 < nk; c2 += 1)
5 S_4(c0, c1, c2);
6 }
7

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