- nir_ssa_def *low = nir_iadd(b, nir_imul(b, index_base, nir_imm_int(b, 16)), nir_imm_int(b, 12));
- nir_ssa_def *high = nir_imul(b, nir_iadd(b, index_base, nir_imm_int(b, 1)), nir_imm_int(b, 16));
+ nir_ssa_def *low = nir_iadd_imm(b, nir_imul_imm(b, index_base, 16), 12);
+ nir_ssa_def *high = nir_imul_imm(b, nir_iadd_imm(b, index_base, 1), 16);