[LLVMdev] Preventing pure function declarations from being removed

[Marcus Frenkel]

Hi all,

is there any way to mark a non-referenced function declaration as "used"  
in any way (by using the C++ code generator) so that it will be ignored by  
the stripDeadPrototypes and globalDCE pass (and any other pass that  
possibly might remove seemingly unused functions)?

Basically, my modules have a set of function declarations (without an  
actual body, just a global mapping on the C++ side) that shall not be  
removed during code optimization, because I need to find them again after  
optimization.


Greetings

Marcus