diff --git a/luisa_compute/src/lang/types.rs b/luisa_compute/src/lang/types.rs
index 633fddb..2e8932c 100644
--- a/luisa_compute/src/lang/types.rs
+++ b/luisa_compute/src/lang/types.rs
@@ -47,6 +47,9 @@ pub trait Value: Copy + TypeOf + 'static {
     fn var_zeroed() -> Var<Self> {
         Var::<Self>::from_node(__current_scope(|b| b.local_zero_init(Self::type_())).into())
     }
+    fn expr_zeroed() -> Expr<Self> {
+        Self::var_zeroed().load()
+    }
 }
 
 pub trait SoaValue: Value {
diff --git a/luisa_compute_sys/LuisaCompute b/luisa_compute_sys/LuisaCompute
index 11aec87..ededbf4 160000
--- a/luisa_compute_sys/LuisaCompute
+++ b/luisa_compute_sys/LuisaCompute
@@ -1 +1 @@
-Subproject commit 11aec87024ff757ec2ac544b2ff6c5baa790a2f8
+Subproject commit ededbf4feb9460c7496e2df2ffba7b576473532a