diff --git a/cl/_testrt/builtin/out.ll b/cl/_testrt/builtin/out.ll
index ee999eb5..c1fb435e 100644
--- a/cl/_testrt/builtin/out.ll
+++ b/cl/_testrt/builtin/out.ll
@@ -28,7 +28,7 @@ define void @main() {
 _llgo_0:
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 16)
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 32)
   %1 = getelementptr inbounds i64, ptr %0, i64 0
   store i64 1, ptr %1, align 4
   %2 = getelementptr inbounds i64, ptr %0, i64 1
@@ -39,7 +39,7 @@ _llgo_0:
   store i64 4, ptr %4, align 4
   %5 = call %"github.com/goplus/llgo/internal/runtime.Slice" @"github.com/goplus/llgo/internal/runtime.NewSlice"(ptr %0, i64 4, i64 4)
   %6 = call i64 @"github.com/goplus/llgo/internal/runtime.SliceLen"(%"github.com/goplus/llgo/internal/runtime.Slice" %5)
-  %7 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 16)
+  %7 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 32)
   %8 = getelementptr inbounds i64, ptr %7, i64 0
   store i64 1, ptr %8, align 4
   %9 = getelementptr inbounds i64, ptr %7, i64 1
diff --git a/cl/_testrt/sum/out.ll b/cl/_testrt/sum/out.ll
index 1b390114..f5ae39db 100644
--- a/cl/_testrt/sum/out.ll
+++ b/cl/_testrt/sum/out.ll
@@ -23,7 +23,7 @@ define void @main() {
 _llgo_0:
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 16)
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 32)
   %1 = getelementptr inbounds i64, ptr %0, i64 0
   store i64 1, ptr %1, align 4
   %2 = getelementptr inbounds i64, ptr %0, i64 1
diff --git a/cl/_testrt/typalias/out.ll b/cl/_testrt/typalias/out.ll
index d902282b..655a98c3 100644
--- a/cl/_testrt/typalias/out.ll
+++ b/cl/_testrt/typalias/out.ll
@@ -47,7 +47,7 @@ define void @main() {
 _llgo_0:
   call void @"github.com/goplus/llgo/internal/runtime.init"()
   call void @main.init()
-  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 16)
+  %0 = call ptr @"github.com/goplus/llgo/internal/runtime.Alloc"(i64 5)
   %1 = getelementptr inbounds { i32, i1 }, ptr %0, i32 0, i32 0
   %2 = getelementptr inbounds { i32, i1 }, ptr %0, i32 0, i32 1
   store i32 100, ptr %1, align 4