diff --git a/internal/abi/llgo_autogen.ll b/internal/abi/llgo_autogen.ll
index 8018f1be..085e8b04 100644
--- a/internal/abi/llgo_autogen.ll
+++ b/internal/abi/llgo_autogen.ll
@@ -2,13 +2,14 @@
 source_filename = "github.com/goplus/llgo/internal/abi"
 
 %"github.com/goplus/llgo/internal/abi.ArrayType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, ptr, i64 }
-%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, ptr, ptr, i32, i32 }
+%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, %"github.com/goplus/llgo/internal/runtime.Closure", ptr, i32, i32 }
+%"github.com/goplus/llgo/internal/runtime.Closure" = type { ptr, ptr }
 %"github.com/goplus/llgo/internal/abi.ChanType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, i64 }
 %"github.com/goplus/llgo/internal/abi.FuncType" = type { %"github.com/goplus/llgo/internal/abi.Type", i16, i16 }
 %"github.com/goplus/llgo/internal/abi.InterfaceType" = type { %"github.com/goplus/llgo/internal/abi.Type", %"github.com/goplus/llgo/internal/abi.Name", %"github.com/goplus/llgo/internal/runtime.Slice" }
 %"github.com/goplus/llgo/internal/abi.Name" = type { ptr }
 %"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
-%"github.com/goplus/llgo/internal/abi.MapType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, ptr, ptr, ptr, i8, i8, i16, i32 }
+%"github.com/goplus/llgo/internal/abi.MapType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr, ptr, ptr, %"github.com/goplus/llgo/internal/runtime.Closure", i8, i8, i16, i32 }
 %"github.com/goplus/llgo/internal/abi.PtrType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr }
 %"github.com/goplus/llgo/internal/abi.SliceType" = type { %"github.com/goplus/llgo/internal/abi.Type", ptr }
 %"github.com/goplus/llgo/internal/abi.StructType" = type { %"github.com/goplus/llgo/internal/abi.Type", %"github.com/goplus/llgo/internal/abi.Name", %"github.com/goplus/llgo/internal/runtime.Slice" }
diff --git a/internal/runtime/llgo_autogen.ll b/internal/runtime/llgo_autogen.ll
index bf1294e7..c242c8c2 100644
--- a/internal/runtime/llgo_autogen.ll
+++ b/internal/runtime/llgo_autogen.ll
@@ -4,8 +4,9 @@ source_filename = "github.com/goplus/llgo/internal/runtime"
 %"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
 %"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
 %"github.com/goplus/llgo/internal/runtime.itab" = type { ptr, ptr, i32, [4 x i8], [1 x i64] }
+%"github.com/goplus/llgo/internal/runtime.Closure" = type { ptr, ptr }
 %"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
-%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, ptr, ptr, i32, i32 }
+%"github.com/goplus/llgo/internal/abi.Type" = type { i64, i64, i32, i8, i8, i8, i8, %"github.com/goplus/llgo/internal/runtime.Closure", ptr, i32, i32 }
 %"github.com/goplus/llgo/internal/runtime.hmap" = type { i64, i8, i8, i16, i32, ptr, ptr, i64, ptr }
 
 @"github.com/goplus/llgo/internal/runtime.TyAny" = global ptr null
@@ -211,6 +212,17 @@ _llgo_0:
   ret ptr %0
 }
 
+define %"github.com/goplus/llgo/internal/runtime.Closure" @"github.com/goplus/llgo/internal/runtime.NewClosure"(ptr %0, ptr %1) {
+_llgo_0:
+  %2 = alloca %"github.com/goplus/llgo/internal/runtime.Closure", align 8
+  %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Closure", ptr %2, i32 0, i32 0
+  %4 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Closure", ptr %2, i32 0, i32 1
+  store ptr %0, ptr %3, align 8
+  store ptr %1, ptr %4, align 8
+  %5 = load %"github.com/goplus/llgo/internal/runtime.Closure", ptr %2, align 8
+  ret %"github.com/goplus/llgo/internal/runtime.Closure" %5
+}
+
 define %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice"(ptr %0, i64 %1, i64 %2) {
 _llgo_0:
   %3 = alloca %"github.com/goplus/llgo/internal/runtime.Slice", align 8
diff --git a/ssa/ssa_test.go b/ssa/ssa_test.go
index ceaea2e4..ff8c21c3 100644
--- a/ssa/ssa_test.go
+++ b/ssa/ssa_test.go
@@ -30,6 +30,15 @@ func TestMakeInterface(t *testing.T) {
 }
 */
 
+func TestCFuncPtr(t *testing.T) {
+	sig := types.NewSignatureType(nil, nil, nil, nil, nil, false)
+	csig := (*CFuncPtr)(sig)
+	_ = csig.String()
+	if csig.Underlying() != sig {
+		t.Fatal("TestCFuncPtr failed")
+	}
+}
+
 func TestUserdefExpr(t *testing.T) {
 	a := delayExprTy(nil)
 	b := &phisExprTy{}