diff --git a/cl/_testlibgo/_math/in.go b/cl/_testlibgo/math/in.go
similarity index 59%
rename from cl/_testlibgo/_math/in.go
rename to cl/_testlibgo/math/in.go
index 8f31a5cb..8794dcc8 100644
--- a/cl/_testlibgo/_math/in.go
+++ b/cl/_testlibgo/math/in.go
@@ -5,5 +5,7 @@ import (
 )
 
 func main() {
+	println(math.Sqrt(2))
 	println(math.Abs(-1.2))
+	println(math.Ldexp(1.2, 3))
 }
diff --git a/cl/_testlibgo/math/out.ll b/cl/_testlibgo/math/out.ll
new file mode 100644
index 00000000..e7ee0e64
--- /dev/null
+++ b/cl/_testlibgo/math/out.ll
@@ -0,0 +1,52 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+@"main.init$guard" = global i1 false, align 1
+@__llgo_argc = global i32 0, align 4
+@__llgo_argv = global ptr null, align 8
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  call void @math.init()
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) {
+_llgo_0:
+  store i32 %0, ptr @__llgo_argc, align 4
+  store ptr %1, ptr @__llgo_argv, align 8
+  call void @"github.com/goplus/llgo/internal/runtime.init"()
+  call void @main.init()
+  %2 = call double @math.Sqrt(double 2.000000e+00)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %2)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %3 = call double @math.Abs(double -1.200000e+00)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %3)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  %4 = call double @math.Ldexp(double 1.200000e+00, i64 3)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double %4)
+  call void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8 10)
+  ret i32 0
+}
+
+declare void @math.init()
+
+declare void @"github.com/goplus/llgo/internal/runtime.init"()
+
+declare double @math.Sqrt(double)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintFloat"(double)
+
+declare void @"github.com/goplus/llgo/internal/runtime.PrintByte"(i8)
+
+declare double @math.Abs(double)
+
+declare double @math.Ldexp(double, i64)