0ebb855635
Probed rknn_matmul_create for every int4 dtype. RK3588 supports ONLY W8A8 and W4A4. All weight-only int4 modes (int8xint4, fp16xint4) are rejected: "unsupported matmul dtype ... in this platform". So int4 forces W4A4 = int4 activations, whose transformer outliers dont fit in 4 bits -