diff --git a/src/imagination/pco/pco_trans_nir.c b/src/imagination/pco/pco_trans_nir.c
index 962ec90d2a8..f4b90d2145e 100644
--- a/src/imagination/pco/pco_trans_nir.c
+++ b/src/imagination/pco/pco_trans_nir.c
@@ -3386,8 +3386,8 @@ static pco_instr *trans_const(trans_ctx *tctx, nir_load_const_instr *nconst)
       return pco_mov(&tctx->b, dest, imm_reg);
    }
 
-   /* TODO: support more bit sizes/components. */
-   assert(num_bits == 32);
+   /* No 64-bit support yet. */
+   assert(num_bits <= 32);
 
    if (pco_ref_is_scalar(dest)) {
       assert(chans == 1);
@@ -3396,6 +3396,10 @@ static pco_instr *trans_const(trans_ctx *tctx, nir_load_const_instr *nconst)
       pco_ref imm =
          pco_ref_imm(val, pco_bits(num_bits), pco_ref_get_dtype(dest));
 
+      /* Override to 32-bit. */
+      dest = pco_ref_bits(dest, 32);
+      imm = pco_ref_bits(imm, 32);
+
       return pco_movi32(&tctx->b, dest, imm);
    }