#ifndef NDEBUG
if (preds.empty())
- fprintf(stderr, "Temporary never defined or are defined after use: %%%d in BB%d\n", t.id(), block->index);
+ aco_err(program, "Temporary never defined or are defined after use: %%%d in BB%d", t.id(), block->index);
#endif
for (unsigned pred_idx : preds) {