llvm-project/polly/lib/External/isl/test_inputs/codegen/atomic3.c

for (int c0 = 0; c0 <= 64; c0 += 1) {
  if (c0 >= 63) {
    sync();
  } else if (c0 >= 1) {
    sync();
  } else {
    sync();
  }
}