+static unsigned
+bi_pack_add_imath(bi_instruction *ins, struct bi_registers *regs)
+{
+ /* TODO: 32+16 add */
+ assert(ins->src_types[0] == ins->src_types[1]);
+ unsigned sz = nir_alu_type_get_type_size(ins->src_types[0]);
+ enum bi_imath_op p = ins->op.imath;
+
+ unsigned op = 0;
+
+ if (sz == 8) {
+ op = (p == BI_IMATH_ADD) ? BIFROST_ADD_IADD_8 :
+ BIFROST_ADD_ISUB_8;
+ } else if (sz == 16) {
+ op = (p == BI_IMATH_ADD) ? BIFROST_ADD_IADD_16 :
+ BIFROST_ADD_ISUB_16;
+ } else if (sz == 32) {
+ op = (p == BI_IMATH_ADD) ? BIFROST_ADD_IADD_32 :
+ BIFROST_ADD_ISUB_32;
+ } else {
+ unreachable("64-bit todo");
+ }
+
+ return bi_pack_add_2src(ins, regs, op);
+}
+