diff --git a/src/gallium/auxiliary/gallivm/lp_bld_nir_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_nir_soa.c
index c82cf2ef823..ee00083c460 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_nir_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_nir_soa.c
@@ -2392,7 +2392,7 @@ static void emit_reduce(struct lp_build_nir_soa_context *bld, LLVMValueRef src,
       case nir_op_umax: opname = "umax"; break;
       case nir_op_fmax: opname = "fmax"; break;
       default:
-         assert(0);
+	 UNREACHABLE("Unhandled reduction operation");
       };
       snprintf(intrinsic, sizeof intrinsic, "llvm.vector.reduce.%s.v%u%s%u",
                opname,