diff --git a/artiq/compiler/transforms/llvm_ir_generator.py b/artiq/compiler/transforms/llvm_ir_generator.py
index 28d24dffe..cd21f4424 100644
--- a/artiq/compiler/transforms/llvm_ir_generator.py
+++ b/artiq/compiler/transforms/llvm_ir_generator.py
@@ -146,9 +146,9 @@ class ABILayoutInfo:
 
     @memoize
     def get_size_align(self, llty):
-        lowered = llty._get_ll_pointer_type(self.lldatalayout, self.llcontext)
-        return (self.lldatalayout.get_pointee_abi_size(lowered),
-                self.lldatalayout.get_pointee_abi_alignment(lowered))
+        lowered = llty._get_ll_global_value_type(self.lldatalayout, self.llcontext)
+        return (self.lldatalayout.get_abi_size(lowered),
+                self.lldatalayout.get_abi_alignment(lowered))
 
     @memoize
     def get_size_align_for_type(self, typ):
diff --git a/flake.nix b/flake.nix
index 4c2e37239..58cec33ca 100644
--- a/flake.nix
+++ b/flake.nix
@@ -113,12 +113,12 @@
 
       llvmlite-new = pkgs.python3Packages.buildPythonPackage rec {
         pname = "llvmlite";
-        version = "0.43.0";
+        version = "0.44.0";
         src = pkgs.fetchFromGitHub {
             owner = "numba";
             repo = "llvmlite";
             rev = "v${version}";
-            sha256 = "sha256-5QBSRDb28Bui9IOhGofj+c7Rk7J5fNv5nPksEPY/O5o=";
+            sha256 = "sha256-ZIA/JfK9ZP00Zn6SZuPus30Xw10hn3DArHCkzBZAUV0=";
           };
         nativeBuildInputs = [ pkgs.llvm_15 ];
         # Disable static linking