[LLVMdev] How to insert a CallInst which calls to a function from a library

[Kenneth Uildriks]

On Sat, Oct 16, 2010 at 7:15 AM, hamed hamzehi <mohammadhamzehi at yahoo.com>wrote:

> *Hello
> I want to write a pass which insert a new call to a library function
> but I don't know how to create a** CallInst that calls a
> function like "pthread_create",
> can anyone help** me with this problem?
> *
>
>
>
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> First you have to create a declaration for the library function.  Use
Module::getOrInsertFunction for that; you'll get back a Value representing
the library function.  Once you've got that, pass that Value in as the
callee of the call instruction.
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