Parse the Argument that passed by caller

[kbh1860]

joern can't parse the Argumetn that passed by caller? like this situation

` void sub_12345(int a1, int a2){ testFunc(a1, a2); }

void caller(int a, int b, int c) int arg1 = 1, arg2 = 2); sub_12345(arg1, arg2); `

how can i parse the testFunc??