diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c
index 5aadb8ff24e..79a20dbdf9f 100644
--- a/src/gallium/drivers/vc4/vc4_program.c
+++ b/src/gallium/drivers/vc4/vc4_program.c
@@ -1053,6 +1053,14 @@ ntq_fddy(struct vc4_compile *c, struct qreg src)
                                   qir_FSUB(c, src, from_bottom)));
 }
 
+static struct qreg
+ntq_emit_cond_to_int(struct vc4_compile *c, enum qpu_cond cond)
+{
+        return qir_MOV(c, qir_SEL(c, cond,
+                                  qir_uniform_ui(c, 1),
+                                  qir_uniform_ui(c, 0)));
+}
+
 static void
 ntq_emit_alu(struct vc4_compile *c, nir_alu_instr *instr)
 {
@@ -1291,6 +1299,16 @@ ntq_emit_alu(struct vc4_compile *c, nir_alu_instr *instr)
                 result = ntq_fddy(c, src[0]);
                 break;
 
+        case nir_op_uadd_carry:
+                qir_SF(c, qir_ADD(c, src[0], src[1]));
+                result = ntq_emit_cond_to_int(c, QPU_COND_CS);
+                break;
+
+        case nir_op_usub_borrow:
+                qir_SF(c, qir_SUB(c, src[0], src[1]));
+                result = ntq_emit_cond_to_int(c, QPU_COND_CS);
+                break;
+
         default:
                 fprintf(stderr, "unknown NIR ALU inst: ");
                 nir_print_instr(&instr->instr, stderr);