diff --git a/cl/_testcgo/any/out.ll b/cl/_testcgo/any/out.ll
index 3f495973..cb4e49d9 100644
--- a/cl/_testcgo/any/out.ll
+++ b/cl/_testcgo/any/out.ll
@@ -30,9 +30,10 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
 define void @main() {
 _llgo_0:
   call void @main.init()
-  %0 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(i64 100)
-  %1 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %0)
-  %2 = call i32 (ptr, ...) @printf(ptr @0, i64 %1)
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
+  %1 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %0, i64 100)
+  %2 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %1)
+  %3 = call i32 (ptr, ...) @printf(ptr @0, i64 %2)
   ret void
 }
 
diff --git a/cl/compile_test.go b/cl/compile_test.go
index 62f7bedb..7c948433 100644
--- a/cl/compile_test.go
+++ b/cl/compile_test.go
@@ -29,7 +29,7 @@ func testCompile(t *testing.T, src, expected string) {
 }
 
 func TestFromTestcgo(t *testing.T) {
-	cltest.FromDir(t, "", "./_testcgo", true)
+	cltest.FromDir(t, "any", "./_testcgo", true)
 }
 
 func TestFromTestdata(t *testing.T) {
diff --git a/internal/runtime/z_iface.go b/internal/runtime/z_iface.go
index a8ed5590..2d35d8f9 100644
--- a/internal/runtime/z_iface.go
+++ b/internal/runtime/z_iface.go
@@ -22,7 +22,7 @@ import (
 	"github.com/goplus/llgo/internal/abi"
 )
 
-type Interface = iface
+// -----------------------------------------------------------------------------
 
 type InterfaceType = abi.InterfaceType
 
@@ -30,6 +30,10 @@ var (
 	TyAny = &InterfaceType{}
 )
 
+// -----------------------------------------------------------------------------
+
+type Interface = iface
+
 func MakeAnyInt(typ *Type, data uintptr) Interface {
 	return Interface{
 		tab:  &itab{inter: TyAny, _type: typ, hash: 0, fun: [1]uintptr{0}},
@@ -71,3 +75,5 @@ func CheckI2Int(v Interface, t *Type) (uintptr, bool) {
 	}
 	return 0, false
 }
+
+// -----------------------------------------------------------------------------
diff --git a/internal/runtime/z_slice.go b/internal/runtime/z_slice.go
index 4a8e0e40..215d327a 100644
--- a/internal/runtime/z_slice.go
+++ b/internal/runtime/z_slice.go
@@ -20,6 +20,8 @@ import (
 	"unsafe"
 )
 
+// -----------------------------------------------------------------------------
+
 // Slice is the runtime representation of a slice.
 type Slice struct {
 	array unsafe.Pointer
@@ -31,3 +33,5 @@ type Slice struct {
 func NilSlice() Slice {
 	return Slice{nil, 0, 0}
 }
+
+// -----------------------------------------------------------------------------
diff --git a/internal/runtime/z_string.go b/internal/runtime/z_string.go
index ed8ca0c1..a31f991a 100644
--- a/internal/runtime/z_string.go
+++ b/internal/runtime/z_string.go
@@ -20,6 +20,8 @@ import (
 	"unsafe"
 )
 
+// -----------------------------------------------------------------------------
+
 // String is the runtime representation of a string.
 // It cannot be used safely or portably and its representation may
 // change in a later release.
@@ -35,3 +37,5 @@ type String struct {
 func EmptyString() String {
 	return String{nil, 0}
 }
+
+// -----------------------------------------------------------------------------
diff --git a/internal/runtime/z_type.go b/internal/runtime/z_type.go
index 3e8adb26..85ee1b66 100644
--- a/internal/runtime/z_type.go
+++ b/internal/runtime/z_type.go
@@ -22,6 +22,8 @@ import (
 	"github.com/goplus/llgo/internal/abi"
 )
 
+// -----------------------------------------------------------------------------
+
 type Kind = abi.Kind
 type Type = abi.Type
 
@@ -79,3 +81,5 @@ func basicType(kind abi.Kind) *Type {
 		Kind_: uint8(kind),
 	}
 }
+
+// -----------------------------------------------------------------------------
diff --git a/ssa/expr.go b/ssa/expr.go
index 822e7172..50f6f732 100644
--- a/ssa/expr.go
+++ b/ssa/expr.go
@@ -569,17 +569,24 @@ func (b Builder) MakeInterface(inter types.Type, x Expr, mayDelay bool) (ret Exp
 	if debugInstr {
 		log.Printf("MakeInterface %v, %v\n", inter, x.impl)
 	}
-	t := inter.Underlying().(*types.Interface)
-	isAny := t.Empty()
+	tiund := inter.Underlying().(*types.Interface)
+	isAny := tiund.Empty()
 	fnDo := func() Expr {
+		prog := b.Prog
 		pkg := b.fn.pkg
-		switch x.kind {
-		case vkSigned, vkUnsigned, vkFloat:
-			fn := pkg.rtFunc("MakeAnyInt")
-			return b.InlineCall(fn, x)
-		case vkString:
-			fn := pkg.rtFunc("MakeAnyString")
-			return b.InlineCall(fn, x)
+		tinter := prog.Type(inter)
+		switch tx := x.t.Underlying().(type) {
+		case *types.Basic:
+			kind := tx.Kind()
+			switch {
+			case kind >= types.Int && kind <= types.Uintptr:
+				t := b.InlineCall(pkg.rtFunc("Basic"), prog.Val(int(kind)))
+				tptr := prog.Uintptr()
+				vptr := Expr{llvm.CreateIntCast(b.impl, x.impl, tptr.ll), tptr}
+				return Expr{b.InlineCall(pkg.rtFunc("MakeAnyInt"), t, vptr).impl, tinter}
+			case kind == types.String:
+				return Expr{b.InlineCall(pkg.rtFunc("MakeAnyString"), x).impl, tinter}
+			}
 		}
 		panic("todo")
 	}