LLVM使用void指针arg创建函数(LLVM create function with void pointer arg)

 我想在LLVM中创建一个函数，该函数从存储指令获取指向任意内存的指针。 例如： 
 
%x = alloca i32, align 4
%z = alloca i32*, align 8
store i32 123, i32* %x, align 4
store i32* %x, i32** %z, align 8
 
 在这里，我想检测存储指令以调用具有类型i32 *和类型i32 **的内存指针的函数。 我只需要内存的“第一个指针”，我不需要取消引用指针或获取其类型信息。 所以，我需要一个类似于C中的void指针的数据类型。 
 
 我怎样才能在LLVM中做到这一点？ 

I want to create a function in LLVM that takes a pointer to arbitrary memory from store instructions. For example:
 
%x = alloca i32, align 4
%z = alloca i32*, align 8
store i32 123, i32* %x, align 4
store i32* %x, i32** %z, align 8
 
Here, I want to instrument the store instructions to invoke a function with the memory pointers which are once of type i32* and once of type i32**. I only need the "first pointer" to memory and I don't need to derenference the pointers or get its type information. So, I need a datatype that is similar to void pointers in C.
 
How can I do that in LLVM?

原文：https://stackoverflow.com/questions/39309708