diff --git a/README.md b/README.md
index cdb38794..97e95bb9 100644
--- a/README.md
+++ b/README.md
@@ -152,7 +152,7 @@ See [github.com/goplus/llgo/py](https://pkg.go.dev/github.com/goplus/llgo/py) fo
 
 LLGo can easily import any libraries from the C ecosystem. Currently, this import process is still manual, but in the future, it will be automated similar to Python library imports.
 
-The currently imported libraries include:
+The currently supported libraries include:
 
 * [llama2.c](https://pkg.go.dev/github.com/goplus/llgo/c/llama2)
 * [cjson](https://pkg.go.dev/github.com/goplus/llgo/c/cjson)
diff --git a/chore/llvmtargets/llvm_targets.go b/chore/llvmtargets/llvm_targets.go
new file mode 100644
index 00000000..936ae7e9
--- /dev/null
+++ b/chore/llvmtargets/llvm_targets.go
@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llvm"
+)
+
+func main() {
+	llvm.InitializeAllTargetInfos()
+	llvm.InitializeAllTargets()
+	llvm.InitializeAllTargetMCs()
+	llvm.InitializeNativeTarget()
+	fmt.Println("targets:")
+	for it := llvm.FirstTarget(); it.C != nil; it = it.NextTarget() {
+		fmt.Printf("- %s: %s\n", it.Name(), it.Description())
+	}
+}
diff --git a/cl/_testdata/print/out.ll b/cl/_testdata/print/out.ll
index dd88c08e..5aa0ca70 100644
--- a/cl/_testdata/print/out.ll
+++ b/cl/_testdata/print/out.ll
@@ -99,11 +99,11 @@ _llgo_0:
   call void @main.prinfsub(double 1.001000e+02)
   call void @main.printnl()
   %3 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 13)
-  %4 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %3, i64 1315859240)
+  %4 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %3, i64 1315859240)
   call void @main.printany(%"github.com/goplus/llgo/internal/runtime.iface" %4)
   call void @main.printnl()
   %5 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 14)
-  %6 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %5, i64 4746175415993761792)
+  %6 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %5, i64 4746175415993761792)
   call void @main.printany(%"github.com/goplus/llgo/internal/runtime.iface" %6)
   call void @main.printnl()
   br i1 true, label %_llgo_3, label %_llgo_2
@@ -116,7 +116,7 @@ _llgo_1:                                          ; preds = %_llgo_3
   store %"github.com/goplus/llgo/internal/runtime.iface" %10, ptr %8, align 8
   %11 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %7, i64 1
   %12 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 1)
-  %13 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %12, i64 -1)
+  %13 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %12, i64 -1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %13, ptr %11, align 8
   %14 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %7, i64 16, i64 2, i64 0, i64 2, i64 2)
   call void @main.println(%"github.com/goplus/llgo/internal/runtime.Slice" %14)
@@ -130,74 +130,74 @@ _llgo_2:                                          ; preds = %_llgo_3, %_llgo_1,
   store %"github.com/goplus/llgo/internal/runtime.iface" %18, ptr %16, align 8
   %19 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %15, i64 1
   %20 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 1)
-  %21 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %20, i64 -1)
+  %21 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %20, i64 -1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %21, ptr %19, align 8
   %22 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %15, i64 2
   %23 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 1)
-  %24 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %23, i64 -1)
+  %24 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %23, i64 -1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %24, ptr %22, align 8
   %25 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %15, i64 16, i64 3, i64 0, i64 3, i64 3)
   call void @main.println(%"github.com/goplus/llgo/internal/runtime.Slice" %25)
   %26 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 256)
   %27 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 0
   %28 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 1)
-  %29 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %28, i64 -1)
+  %29 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %28, i64 -1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %29, ptr %27, align 8
   %30 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 1
   %31 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 1)
-  %32 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %31, i64 0)
+  %32 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %31, i64 0)
   store %"github.com/goplus/llgo/internal/runtime.iface" %32, ptr %30, align 8
   %33 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 2
   %34 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 5)
-  %35 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %34, i64 97)
+  %35 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %34, i64 97)
   store %"github.com/goplus/llgo/internal/runtime.iface" %35, ptr %33, align 8
   %36 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 3
   %37 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 5)
-  %38 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %37, i64 65)
+  %38 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %37, i64 65)
   store %"github.com/goplus/llgo/internal/runtime.iface" %38, ptr %36, align 8
   %39 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 4
   %40 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 5)
-  %41 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %40, i64 20013)
+  %41 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %40, i64 20013)
   store %"github.com/goplus/llgo/internal/runtime.iface" %41, ptr %39, align 8
   %42 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 5
   %43 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 3)
-  %44 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %43, i64 1)
+  %44 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %43, i64 1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %44, ptr %42, align 8
   %45 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 6
   %46 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 4)
-  %47 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %46, i64 2)
+  %47 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %46, i64 2)
   store %"github.com/goplus/llgo/internal/runtime.iface" %47, ptr %45, align 8
   %48 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 7
   %49 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 5)
-  %50 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %49, i64 3)
+  %50 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %49, i64 3)
   store %"github.com/goplus/llgo/internal/runtime.iface" %50, ptr %48, align 8
   %51 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 8
   %52 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 6)
-  %53 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %52, i64 4)
+  %53 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %52, i64 4)
   store %"github.com/goplus/llgo/internal/runtime.iface" %53, ptr %51, align 8
   %54 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 9
   %55 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %56 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %55, i64 5)
+  %56 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %55, i64 5)
   store %"github.com/goplus/llgo/internal/runtime.iface" %56, ptr %54, align 8
   %57 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 10
   %58 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 8)
-  %59 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %58, i64 1)
+  %59 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %58, i64 1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %59, ptr %57, align 8
   %60 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 11
   %61 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 9)
-  %62 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %61, i64 2)
+  %62 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %61, i64 2)
   store %"github.com/goplus/llgo/internal/runtime.iface" %62, ptr %60, align 8
   %63 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 12
   %64 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 10)
-  %65 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %64, i64 3)
+  %65 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %64, i64 3)
   store %"github.com/goplus/llgo/internal/runtime.iface" %65, ptr %63, align 8
   %66 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 13
   %67 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 11)
-  %68 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %67, i64 4)
+  %68 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %67, i64 4)
   store %"github.com/goplus/llgo/internal/runtime.iface" %68, ptr %66, align 8
   %69 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 14
   %70 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 12)
-  %71 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %70, i64 5)
+  %71 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %70, i64 5)
   store %"github.com/goplus/llgo/internal/runtime.iface" %71, ptr %69, align 8
   %72 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %26, i64 15
   %73 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @4, i64 4)
@@ -801,9 +801,9 @@ declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
 declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
 
-declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr, i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr, i64)
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
 declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyString"(%"github.com/goplus/llgo/internal/runtime.String")
 
diff --git a/cl/_testdata/vargs/out.ll b/cl/_testdata/vargs/out.ll
index def89a93..86c098c9 100644
--- a/cl/_testdata/vargs/out.ll
+++ b/cl/_testdata/vargs/out.ll
@@ -31,15 +31,15 @@ _llgo_0:
   %2 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 48)
   %3 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i64 0
   %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %4, i64 1)
+  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %4, i64 1)
   store %"github.com/goplus/llgo/internal/runtime.iface" %5, ptr %3, align 8
   %6 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i64 1
   %7 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %8 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %7, i64 2)
+  %8 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %7, i64 2)
   store %"github.com/goplus/llgo/internal/runtime.iface" %8, ptr %6, align 8
   %9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.iface", ptr %2, i64 2
   %10 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %11 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %10, i64 3)
+  %11 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %10, i64 3)
   store %"github.com/goplus/llgo/internal/runtime.iface" %11, ptr %9, align 8
   %12 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr %2, i64 16, i64 3, i64 0, i64 3, i64 3)
   call void @main.test(%"github.com/goplus/llgo/internal/runtime.Slice" %12)
@@ -76,9 +76,9 @@ declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
 declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
 
-declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr, i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr, i64)
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
 declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice3"(ptr, i64, i64, i64, i64, i64)
 
diff --git a/cl/_testrt/any/out.ll b/cl/_testrt/any/out.ll
index fdd52ad1..fbf58289 100644
--- a/cl/_testrt/any/out.ll
+++ b/cl/_testrt/any/out.ll
@@ -36,7 +36,7 @@ _llgo_0:
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
   %2 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %3 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %2, i64 100)
+  %3 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %2, i64 100)
   %4 = call i64 @main.incVal(%"github.com/goplus/llgo/internal/runtime.iface" %3)
   %5 = call i32 (ptr, ...) @printf(ptr @0, i64 %4)
   ret i32 0
@@ -48,6 +48,6 @@ declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
 declare void @"github.com/goplus/llgo/internal/runtime.init"()
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr, i64)
+declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr, i64)
 
 declare i32 @printf(ptr, ...)
diff --git a/cl/_testrt/builtin/out.ll b/cl/_testrt/builtin/out.ll
index 2af18d2b..39388613 100644
--- a/cl/_testrt/builtin/out.ll
+++ b/cl/_testrt/builtin/out.ll
@@ -288,7 +288,7 @@ _llgo_0:
   call void @"github.com/goplus/llgo/internal/runtime.PrintString"(%"github.com/goplus/llgo/internal/runtime.String" %121)
   %122 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 16)
   %123 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 2)
-  %124 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr %123, i64 100)
+  %124 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr %123, i64 100)
   store %"github.com/goplus/llgo/internal/runtime.iface" %124, ptr %122, align 8
   %125 = load %"github.com/goplus/llgo/internal/runtime.iface", ptr %122, align 8
   %126 = ptrtoint ptr %122 to i64
@@ -392,9 +392,9 @@ declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/ll
 
 declare %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.SliceAppend"(%"github.com/goplus/llgo/internal/runtime.Slice", ptr, i64, i64)
 
-declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyIntptr"(ptr, i64)
 
-declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAnyInt"(ptr, i64)
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
 
 declare void @"github.com/goplus/llgo/internal/runtime.PrintBool"(i1)
 
diff --git a/cl/cltest/cltest.go b/cl/cltest/cltest.go
index 3b8c60b2..a0d0b750 100644
--- a/cl/cltest/cltest.go
+++ b/cl/cltest/cltest.go
@@ -32,6 +32,7 @@ import (
 	"github.com/goplus/gogen/packages"
 	"github.com/goplus/llgo/cl"
 	"github.com/goplus/llgo/internal/llgen"
+	"github.com/goplus/llgo/ssa/ssatest"
 	"golang.org/x/tools/go/ssa"
 	"golang.org/x/tools/go/ssa/ssautil"
 
@@ -139,21 +140,7 @@ func TestCompileEx(t *testing.T, src any, fname, expected string) {
 		t.Fatal("BuildPackage failed:", err)
 	}
 	foo.WriteTo(os.Stderr)
-	prog := llssa.NewProgram(nil)
-	prog.SetRuntime(func() *types.Package {
-		rt, err := imp.Import(llssa.PkgRuntime)
-		if err != nil {
-			t.Fatal("load runtime failed:", err)
-		}
-		return rt
-	})
-	prog.SetPython(func() *types.Package {
-		rt, err := imp.Import(llssa.PkgPython)
-		if err != nil {
-			t.Fatal("load python failed:", err)
-		}
-		return rt
-	})
+	prog := ssatest.NewProgramEx(t, nil, imp)
 
 	ret, err := cl.NewPackage(prog, foo, files)
 	if err != nil {
diff --git a/go.mod b/go.mod
index d1455dbd..5e702b52 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/goplus/llgo
 
-go 1.18
+go 1.20
 
 require (
 	github.com/aykevl/go-wasm v0.0.1
diff --git a/internal/abi/llgo_autogen.lla b/internal/abi/llgo_autogen.lla
index cccf2f81..4f8bcd99 100644
Binary files a/internal/abi/llgo_autogen.lla and b/internal/abi/llgo_autogen.lla differ
diff --git a/internal/abi/type.go b/internal/abi/type.go
index 549a135a..17b61967 100644
--- a/internal/abi/type.go
+++ b/internal/abi/type.go
@@ -213,36 +213,6 @@ type StructType struct {
 	Fields  []StructField
 }
 
-// Name is an encoded type Name with optional extra data.
-//
-// The first byte is a bit field containing:
-//
-//	1<<0 the name is exported
-//	1<<1 tag data follows the name
-//	1<<2 pkgPath nameOff follows the name and tag
-//	1<<3 the name is of an embedded (a.k.a. anonymous) field
-//
-// Following that, there is a varint-encoded length of the name,
-// followed by the name itself.
-//
-// If tag data is present, it also has a varint-encoded length
-// followed by the tag itself.
-//
-// If the import path follows, then 4 bytes at the end of
-// the data form a nameOff. The import path is only set for concrete
-// methods that are defined in a different package than their type.
-//
-// If a name starts with "*", then the exported bit represents
-// whether the pointed to type is exported.
-//
-// Note: this encoding must match here and in:
-//   cmd/compile/internal/reflectdata/reflect.go
-//   cmd/link/internal/ld/decodesym.go
-
-type Name struct {
-	Bytes *byte
-}
-
 type InterfaceType struct {
 	Type
 	PkgPath Name      // import path
@@ -330,3 +300,168 @@ func (t *Type) InterfaceType() *InterfaceType {
 }
 
 // -----------------------------------------------------------------------------
+
+// addChecked returns p+x.
+//
+// The whySafe string is ignored, so that the function still inlines
+// as efficiently as p+x, but all call sites should use the string to
+// record why the addition is safe, which is to say why the addition
+// does not cause x to advance to the very end of p's allocation
+// and therefore point incorrectly at the next block in memory.
+func addChecked(p unsafe.Pointer, x uintptr, whySafe string) unsafe.Pointer {
+	_ = whySafe
+	return unsafe.Pointer(uintptr(p) + x)
+}
+
+// Name is an encoded type Name with optional extra data.
+//
+// The first byte is a bit field containing:
+//
+//	1<<0 the name is exported
+//	1<<1 tag data follows the name
+//	1<<2 pkgPath nameOff follows the name and tag
+//	1<<3 the name is of an embedded (a.k.a. anonymous) field
+//
+// Following that, there is a varint-encoded length of the name,
+// followed by the name itself.
+//
+// If tag data is present, it also has a varint-encoded length
+// followed by the tag itself.
+//
+// If the import path follows, then 4 bytes at the end of
+// the data form a nameOff. The import path is only set for concrete
+// methods that are defined in a different package than their type.
+//
+// If a name starts with "*", then the exported bit represents
+// whether the pointed to type is exported.
+//
+// Note: this encoding must match here and in:
+//   cmd/compile/internal/reflectdata/reflect.go
+//   cmd/link/internal/ld/decodesym.go
+
+type Name struct {
+	Bytes *byte
+}
+
+// DataChecked does pointer arithmetic on n's Bytes, and that arithmetic is asserted to
+// be safe for the reason in whySafe (which can appear in a backtrace, etc.)
+func (n Name) DataChecked(off int, whySafe string) *byte {
+	return (*byte)(addChecked(unsafe.Pointer(n.Bytes), uintptr(off), whySafe))
+}
+
+// Data does pointer arithmetic on n's Bytes, and that arithmetic is asserted to
+// be safe because the runtime made the call (other packages use DataChecked)
+func (n Name) Data(off int) *byte {
+	return (*byte)(addChecked(unsafe.Pointer(n.Bytes), uintptr(off), "the runtime doesn't need to give you a reason"))
+}
+
+// IsExported returns "is n exported?"
+func (n Name) IsExported() bool {
+	return (*n.Bytes)&(1<<0) != 0
+}
+
+// HasTag returns true iff there is tag data following this name
+func (n Name) HasTag() bool {
+	return (*n.Bytes)&(1<<1) != 0
+}
+
+// IsEmbedded returns true iff n is embedded (an anonymous field).
+func (n Name) IsEmbedded() bool {
+	return (*n.Bytes)&(1<<3) != 0
+}
+
+// ReadVarint parses a varint as encoded by encoding/binary.
+// It returns the number of encoded bytes and the encoded value.
+func (n Name) ReadVarint(off int) (int, int) {
+	v := 0
+	for i := 0; ; i++ {
+		x := *n.DataChecked(off+i, "read varint")
+		v += int(x&0x7f) << (7 * i)
+		if x&0x80 == 0 {
+			return i + 1, v
+		}
+	}
+}
+
+// IsBlank indicates whether n is "_".
+func (n Name) IsBlank() bool {
+	if n.Bytes == nil {
+		return false
+	}
+	_, l := n.ReadVarint(1)
+	return l == 1 && *n.Data(2) == '_'
+}
+
+// writeVarint writes n to buf in varint form. Returns the
+// number of bytes written. n must be nonnegative.
+// Writes at most 10 bytes.
+func writeVarint(buf []byte, n int) int {
+	for i := 0; ; i++ {
+		b := byte(n & 0x7f)
+		n >>= 7
+		if n == 0 {
+			buf[i] = b
+			return i + 1
+		}
+		buf[i] = b | 0x80
+	}
+}
+
+// Name returns the tag string for n, or empty if there is none.
+func (n Name) Name() string {
+	if n.Bytes == nil {
+		return ""
+	}
+	i, l := n.ReadVarint(1)
+	return unsafe.String(n.DataChecked(1+i, "non-empty string"), l)
+}
+
+// Tag returns the tag string for n, or empty if there is none.
+func (n Name) Tag() string {
+	if !n.HasTag() {
+		return ""
+	}
+	i, l := n.ReadVarint(1)
+	i2, l2 := n.ReadVarint(1 + i + l)
+	return unsafe.String(n.DataChecked(1+i+l+i2, "non-empty string"), l2)
+}
+
+func NewName(n, tag string, exported, embedded bool) Name {
+	if len(n) >= 1<<29 {
+		panic("abi.NewName: name too long: " + n[:1024] + "...")
+	}
+	if len(tag) >= 1<<29 {
+		panic("abi.NewName: tag too long: " + tag[:1024] + "...")
+	}
+	var nameLen [10]byte
+	var tagLen [10]byte
+	nameLenLen := writeVarint(nameLen[:], len(n))
+	tagLenLen := writeVarint(tagLen[:], len(tag))
+
+	var bits byte
+	l := 1 + nameLenLen + len(n)
+	if exported {
+		bits |= 1 << 0
+	}
+	if len(tag) > 0 {
+		l += tagLenLen + len(tag)
+		bits |= 1 << 1
+	}
+	if embedded {
+		bits |= 1 << 3
+	}
+
+	b := make([]byte, l)
+	b[0] = bits
+	copy(b[1:], nameLen[:nameLenLen])
+	copy(b[1+nameLenLen:], n)
+	if len(tag) > 0 {
+		tb := b[1+nameLenLen+len(n):]
+		copy(tb, tagLen[:tagLenLen])
+		copy(tb[tagLenLen:], tag)
+	}
+
+	return Name{Bytes: &b[0]}
+}
+
+// -----------------------------------------------------------------------------
diff --git a/internal/runtime/llgo_autogen.lla b/internal/runtime/llgo_autogen.lla
index 6257d02d..94569d30 100644
Binary files a/internal/runtime/llgo_autogen.lla and b/internal/runtime/llgo_autogen.lla differ
diff --git a/internal/runtime/z_iface.go b/internal/runtime/z_iface.go
index e8d8c747..c64449ca 100644
--- a/internal/runtime/z_iface.go
+++ b/internal/runtime/z_iface.go
@@ -34,7 +34,7 @@ var (
 
 type Interface = iface
 
-func MakeAnyInt(typ *Type, data uintptr) Interface {
+func MakeAnyIntptr(typ *Type, data uintptr) Interface {
 	tab := &itab{inter: TyAny, _type: typ, hash: 0, fun: [1]uintptr{0}}
 	return Interface{
 		tab: tab, data: unsafe.Pointer(data),
diff --git a/internal/runtime/z_string.go b/internal/runtime/z_string.go
index b137447d..6f9ad609 100644
--- a/internal/runtime/z_string.go
+++ b/internal/runtime/z_string.go
@@ -40,6 +40,7 @@ func EmptyString() String {
 	return String{nil, 0}
 }
 
+// TODO(xsw): unsafe.String
 // NewString creates a new string.
 func NewString(data unsafe.Pointer, len int) String {
 	return String{data, len}
diff --git a/ssa/_abi/abi.go b/ssa/_abi/abi.go
new file mode 100644
index 00000000..65578218
--- /dev/null
+++ b/ssa/_abi/abi.go
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package abi
+
+import (
+	"crypto/sha256"
+	"encoding/base64"
+	"fmt"
+	"go/types"
+	"hash"
+)
+
+// Builder is a helper for constructing ABI types.
+type Builder struct {
+	h   hash.Hash
+	buf []byte
+}
+
+// New creates a new ABI type Builder.
+func New() *Builder {
+	h := sha256.New()
+	buf := make([]byte, sha256.Size)
+	return &Builder{h, buf}
+}
+
+// TypeName returns the ABI type name for the specified type.
+func (b *Builder) TypeName(t types.Type) string {
+	switch t := t.(type) {
+	case *types.Basic:
+		return t.Name()
+	case *types.Pointer:
+		return "*" + b.TypeName(t.Elem())
+	case *types.Struct:
+		return b.StructName(t)
+	}
+	panic("todo")
+}
+
+// StructName returns the ABI type name for the specified struct type.
+func (b *Builder) StructName(t *types.Struct) string {
+	hash := b.structHash(t)
+	return "struct$" + base64.RawURLEncoding.EncodeToString(hash)
+}
+
+func (b *Builder) structHash(t *types.Struct) []byte {
+	h := b.h
+	h.Reset()
+	n := t.NumFields()
+	fmt.Fprintln(h, "struct", n)
+	for i := 0; i < n; i++ {
+		f := t.Field(i)
+		name := f.Name()
+		if f.Embedded() {
+			name = "-"
+		}
+		fmt.Fprintln(h, name, b.TypeName(f.Type()))
+	}
+	return h.Sum(b.buf[:0])
+}
diff --git a/ssa/cl_test.go b/ssa/cl_test.go
index 4d79ec49..c89a0958 100644
--- a/ssa/cl_test.go
+++ b/ssa/cl_test.go
@@ -17,9 +17,12 @@
 package ssa_test
 
 import (
+	"go/types"
 	"testing"
 
 	"github.com/goplus/llgo/cl/cltest"
+	"github.com/goplus/llgo/ssa"
+	"github.com/goplus/llgo/ssa/ssatest"
 )
 
 func TestFromTestpy(t *testing.T) {
@@ -36,9 +39,46 @@ func TestFromTestdata(t *testing.T) {
 
 func TestRuntime(t *testing.T) {
 	cltest.Pkg(t, "github.com/goplus/llgo/internal/runtime", "../internal/runtime/llgo_autogen.ll")
+}
+
+func TestAbi(t *testing.T) {
 	cltest.Pkg(t, "github.com/goplus/llgo/internal/abi", "../internal/abi/llgo_autogen.ll")
 }
 
+func TestMakeInterface(t *testing.T) {
+	prog := ssatest.NewProgram(t, &ssa.Target{GOARCH: "x86"})
+	pkg := prog.NewPackage("foo", "foo")
+	fn := pkg.NewFunc("main", types.NewSignatureType(nil, nil, nil, nil, nil, false), ssa.InC)
+	b := fn.MakeBody(1)
+	b.MakeInterface(prog.Any(), prog.IntVal(100, prog.Int64()))
+	b.MakeInterface(prog.Any(), prog.FloatVal(100, prog.Float64()))
+	b.Return()
+	ssatest.Assert(t, pkg, `; ModuleID = 'foo'
+source_filename = "foo"
+
+%"github.com/goplus/llgo/internal/runtime.iface" = type { ptr, ptr }
+
+define void @main() {
+_llgo_0:
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  store i64 100, ptr %0, align 4
+  %1 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 6)
+  %2 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAny"(ptr %1, ptr %0)
+  %3 = call ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64 8)
+  store double 1.000000e+02, ptr %3, align 8
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64 14)
+  %5 = call %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAny"(ptr %4, ptr %3)
+  ret void
+}
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.AllocU"(i64)
+
+declare %"github.com/goplus/llgo/internal/runtime.iface" @"github.com/goplus/llgo/internal/runtime.MakeAny"(ptr, ptr)
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.Basic"(i64)
+`)
+}
+
 /*
 func TestCallback(t *testing.T) {
 	ctx := llvm.NewContext()
diff --git a/ssa/expr.go b/ssa/expr.go
index 722060a7..1f18f269 100644
--- a/ssa/expr.go
+++ b/ssa/expr.go
@@ -665,7 +665,18 @@ func (b Builder) Alloc(elem Type, heap bool) (ret Expr) {
 	return
 }
 
-// Alloca allocates space for n bytes.
+// AllocU allocates uninitialized space for n*sizeof(elem) bytes.
+func (b Builder) AllocU(elem Type, n ...int64) (ret Expr) {
+	if debugInstr {
+		log.Printf("AllocU %v, %v\n", elem.raw.Type, n)
+	}
+	size := b.SizeOf(elem, n...)
+	ret = b.InlineCall(b.Pkg.rtFunc("AllocU"), size)
+	ret.Type = b.Prog.Pointer(elem)
+	return
+}
+
+// Alloca allocates uninitialized space for n bytes.
 func (b Builder) Alloca(n Expr) (ret Expr) {
 	if debugInstr {
 		log.Printf("Alloca %v\n", n.impl)
@@ -984,9 +995,10 @@ func (b Builder) BuiltinCall(fn string, args ...Expr) (ret Expr) {
 		for i, arg := range args {
 			if ln && i > 0 {
 				b.InlineCall(b.Pkg.rtFunc("PrintString"), b.Str(" "))
+				// TODO(visualfc): maybe use PrintCStr is more efficient
 			}
 			var fn string
-			var typ Type
+			var typ Type // TODO(visualfc): typ uninitialized in some cases
 			switch arg.kind {
 			case vkBool:
 				fn = "PrintBool"
@@ -1002,6 +1014,8 @@ func (b Builder) BuiltinCall(fn string, args ...Expr) (ret Expr) {
 			case vkSlice:
 				fn = "PrintSlice"
 			case vkPtr, vkFuncPtr, vkFuncDecl, vkClosure, vkPyVarRef, vkPyFuncRef:
+				// TODO(visualfc): vkClosure is not a pointer
+				// TODO(visualfc): vkPyVarRef, vkPyFuncRef is pointer of pointer
 				fn = "PrintPointer"
 				typ = b.Prog.VoidPtr()
 			case vkString:
@@ -1037,8 +1051,11 @@ func (b Builder) BuiltinCall(fn string, args ...Expr) (ret Expr) {
 				}
 			}
 		}
+	case "String": // unsafe.String
+		// TODO(xsw): make this a builtin
+		return b.InlineCall(b.Pkg.rtFunc("NewString"), args[0], args[1])
 	}
-	panic("todo")
+	panic("todo: " + fn)
 }
 
 // -----------------------------------------------------------------------------
diff --git a/ssa/interface.go b/ssa/interface.go
index ee9a451e..16004054 100644
--- a/ssa/interface.go
+++ b/ssa/interface.go
@@ -27,19 +27,29 @@ import (
 
 // -----------------------------------------------------------------------------
 
-// AbiBasic returns the abi type of the specified basic kind.
-func (b Builder) AbiBasic(kind types.BasicKind) Expr {
+// abiBasic returns the abi type of the specified basic kind.
+func (b Builder) abiBasic(kind types.BasicKind) Expr {
 	return b.InlineCall(b.Pkg.rtFunc("Basic"), b.Prog.Val(int(kind)))
 }
 
 /*
-// AbiStruct returns the abi type of the specified struct type.
-func (b Builder) AbiStruct(t *types.Struct) Expr {
-	panic("todo")
-	// return b.InlineCall(b.Pkg.rtFunc("Struct"), b.Prog.Val(t.NumFields()))
+// abiStruct returns the abi type of the specified struct type.
+func (b Builder) abiStruct(t *types.Struct) Expr {
+	// name := "__llgo_" + b.Prog.abi.StructName(t)
 }
 */
 
+// AbiType returns the abi type of the specified type.
+func (b Builder) AbiType(t Type) Expr {
+	switch tx := t.raw.Type.(type) {
+	case *types.Basic:
+		return b.abiBasic(tx.Kind())
+		//case *types.Struct:
+		//	return b.abiStruct(tx)
+	}
+	panic("todo")
+}
+
 // -----------------------------------------------------------------------------
 
 // MakeInterface constructs an instance of an interface type from a
@@ -57,37 +67,66 @@ func (b Builder) AbiStruct(t *types.Struct) Expr {
 //	t1 = make interface{} <- int (42:int)
 //	t2 = make Stringer <- t0
 func (b Builder) MakeInterface(tinter Type, x Expr) (ret Expr) {
-	raw := tinter.raw.Type
+	rawIntf := tinter.raw.Type.Underlying().(*types.Interface)
 	if debugInstr {
-		log.Printf("MakeInterface %v, %v\n", raw, x.impl)
+		log.Printf("MakeInterface %v, %v\n", rawIntf, x.impl)
 	}
 	prog := b.Prog
-	pkg := b.Pkg
-	switch tx := x.raw.Type.Underlying().(type) {
+	typ := x.Type
+	switch tx := typ.raw.Type.Underlying().(type) {
 	case *types.Basic:
 		kind := tx.Kind()
 		switch {
 		case kind >= types.Bool && kind <= types.Uintptr:
-			t := b.AbiBasic(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}
+			if prog.is32Bits && (kind == types.Int64 || kind == types.Uint64) {
+				return b.makeIntfAlloc(tinter, rawIntf, typ, x)
+			}
+			return b.makeIntfByIntptr(tinter, rawIntf, typ, x.impl)
 		case kind == types.Float32:
-			t := b.AbiBasic(kind)
-			tptr := prog.Uintptr()
-			i32 := llvm.CreateBitCast(b.impl, x.impl, prog.tyInt32()) // TODO(xsw): more effective
-			vptr := Expr{llvm.CreateIntCast(b.impl, i32, tptr.ll), tptr}
-			return Expr{b.InlineCall(pkg.rtFunc("MakeAnyInt"), t, vptr).impl, tinter}
+			i32 := llvm.CreateBitCast(b.impl, x.impl, prog.tyInt32())
+			return b.makeIntfByIntptr(tinter, rawIntf, typ, i32)
 		case kind == types.Float64:
-			t := b.AbiBasic(kind)
-			tptr := prog.Uintptr()
-			vptr := Expr{llvm.CreateBitCast(b.impl, x.impl, tptr.ll), tptr}
-			return Expr{b.InlineCall(pkg.rtFunc("MakeAnyInt"), t, vptr).impl, tinter}
+			if prog.is32Bits {
+				return b.makeIntfAlloc(tinter, rawIntf, typ, x)
+			}
+			i64 := llvm.CreateBitCast(b.impl, x.impl, prog.tyInt64())
+			return b.makeIntfByIntptr(tinter, rawIntf, typ, i64)
 		case kind == types.String:
-			return Expr{b.InlineCall(pkg.rtFunc("MakeAnyString"), x).impl, tinter}
+			return Expr{b.InlineCall(b.Pkg.rtFunc("MakeAnyString"), x).impl, tinter}
 		}
-		// case *types.Struct:
-		//	t := b.AbiStruct(tx)
+		/* case *types.Struct:
+		size := int(prog.SizeOf(typ))
+		if size > prog.PointerSize() {
+			return b.makeIntfAlloc(tinter, rawIntf, typ, x)
+		}
+		tv := prog.ctx.IntType(size * 8)
+		iv := llvm.CreateBitCast(b.impl, x.impl, tv)
+		return b.makeIntfByIntptr(tinter, rawIntf, typ, iv) */
+	}
+	panic("todo")
+}
+
+func (b Builder) makeIntfAlloc(tinter Type, rawIntf *types.Interface, typ Type, x Expr) (ret Expr) {
+	vptr := b.AllocU(typ)
+	b.Store(vptr, x)
+	return b.makeIntfByPtr(tinter, rawIntf, typ, vptr)
+}
+
+func (b Builder) makeIntfByPtr(tinter Type, rawIntf *types.Interface, typ Type, vptr Expr) (ret Expr) {
+	if rawIntf.Empty() {
+		ret = b.InlineCall(b.Pkg.rtFunc("MakeAny"), b.AbiType(typ), vptr)
+		ret.Type = tinter
+		return
+	}
+	panic("todo")
+}
+
+func (b Builder) makeIntfByIntptr(tinter Type, rawIntf *types.Interface, typ Type, x llvm.Value) (ret Expr) {
+	if rawIntf.Empty() {
+		tptr := b.Prog.Uintptr()
+		x = llvm.CreateIntCast(b.impl, x, tptr.ll)
+		impl := b.InlineCall(b.Pkg.rtFunc("MakeAnyIntptr"), b.AbiType(typ), Expr{x, tptr}).impl
+		return Expr{impl, tinter}
 	}
 	panic("todo")
 }
diff --git a/ssa/package.go b/ssa/package.go
index bc9cb7cc..9e9356bb 100644
--- a/ssa/package.go
+++ b/ssa/package.go
@@ -99,6 +99,7 @@ type aProgram struct {
 	ctx   llvm.Context
 	typs  typeutil.Map // rawType -> Type
 	gocvt goTypes
+	//abi *abi.Builder
 
 	rt    *types.Package
 	rtget func() *types.Package
@@ -158,6 +159,7 @@ type aProgram struct {
 
 	NeedRuntime bool
 	NeedPyInit  bool
+	is32Bits    bool
 }
 
 // A Program presents a program.
@@ -180,7 +182,12 @@ func NewProgram(target *Target) Program {
 		// TODO(xsw): Finalize may cause panic, so comment it.
 		ctx.Finalize()
 	*/
-	return &aProgram{ctx: ctx, gocvt: newGoTypes(), target: target, td: td, named: make(map[string]llvm.Type)}
+	is32Bits := (td.PointerSize() == 4 || target.GOARCH == "x86") // TODO(xsw): remove temp code
+	return &aProgram{
+		ctx: ctx, gocvt: newGoTypes(), // abi: abi.New(),
+		target: target, td: td, is32Bits: is32Bits,
+		named: make(map[string]llvm.Type),
+	}
 }
 
 // SetPython sets the Python package.
diff --git a/ssa/ssa_test.go b/ssa/ssa_test.go
index 05496769..103ee79e 100644
--- a/ssa/ssa_test.go
+++ b/ssa/ssa_test.go
@@ -21,10 +21,18 @@ import (
 	"go/token"
 	"go/types"
 	"testing"
+	"unsafe"
 
 	"github.com/goplus/llvm"
 )
 
+func TestPointerSize(t *testing.T) {
+	expected := unsafe.Sizeof(uintptr(0))
+	if size := NewProgram(nil).PointerSize(); size != int(expected) {
+		t.Fatal("bad PointerSize:", size)
+	}
+}
+
 func TestSetBlock(t *testing.T) {
 	defer func() {
 		if r := recover(); r == nil {
diff --git a/ssa/ssatest/ssautil.go b/ssa/ssatest/ssautil.go
new file mode 100644
index 00000000..bbb8ae9a
--- /dev/null
+++ b/ssa/ssatest/ssautil.go
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ssatest
+
+import (
+	"go/token"
+	"go/types"
+	"testing"
+
+	"github.com/goplus/gogen/packages"
+	"github.com/goplus/llgo/ssa"
+)
+
+func NewProgram(t *testing.T, target *ssa.Target) ssa.Program {
+	fset := token.NewFileSet()
+	imp := packages.NewImporter(fset)
+	return NewProgramEx(t, target, imp)
+}
+
+func NewProgramEx(t *testing.T, target *ssa.Target, imp types.Importer) ssa.Program {
+	prog := ssa.NewProgram(target)
+	prog.SetRuntime(func() *types.Package {
+		rt, err := imp.Import(ssa.PkgRuntime)
+		if err != nil {
+			t.Fatal("load runtime failed:", err)
+		}
+		return rt
+	})
+	prog.SetPython(func() *types.Package {
+		rt, err := imp.Import(ssa.PkgPython)
+		if err != nil {
+			t.Fatal("load python failed:", err)
+		}
+		return rt
+	})
+	return prog
+}
+
+func Assert(t *testing.T, p ssa.Package, expected string) {
+	t.Helper()
+	if v := p.String(); v != expected {
+		t.Fatalf("\n==> got:\n%s\n==> expected:\n%s\n", v, expected)
+	}
+}
diff --git a/ssa/type.go b/ssa/type.go
index 17f5bd07..b7307c39 100644
--- a/ssa/type.go
+++ b/ssa/type.go
@@ -99,6 +99,10 @@ func (p Program) SizeOf(typ Type, n ...int64) uint64 {
 	return size
 }
 
+func (p Program) PointerSize() int {
+	return p.td.PointerSize()
+}
+
 func (p Program) Slice(typ Type) Type {
 	return p.rawType(types.NewSlice(typ.raw.Type))
 }