[llvm-dev] Find all assignment for pointer variables

[Kai Wang via llvm-dev]

Hi all,
In my case, I want to find all assignment instructions for pointer
variables.
For example,
int *d, *c;
*d = *c;

I want to know there is an assignment between *d and *c.

Here is the IR:

%3 = load i32** %c, align

%4 = load i32* %3, align 4

 %5 = load i32** %d, align 8

 store i32 %4, i32* %5, align 4
There are some temp variable %3, %4, %5. Is there any way to find the
assignment "*d = *c" from IR?
Or should I look into clang AST?

Thank you.
-- 
Regards,
Kai
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