How to identify linkonce_odr llvm functions?

Question

I need to make a method that returns only the name of the functions that are not linkonce_odr. In the example below, I hope to return: sc_main

Example:

define linkonce_odr void @_ZN7sc_core15sc_signal_in_ifIbED2Ev(%"class.sc_core::sc_signal_in_if.48"* %this, i8** %vtt) unnamed_addr nounwind uwtable inlinehint align 2

define linkonce_odr void @_ZN7sc_core15sc_signal_in_ifIbEC2Ev(%"class.sc_core::sc_signal_in_if.48"* %this, i8** %vtt) unnamed_addr nounwind uwtable align 2 

define i32 @sc_main(i32 %argc, i8** %argv) uwtable 

What is the best way to identify linkonce_odr functions?

Answer 1

Just iterate over all the functions, for each check its linkage via getLinkage(), then return the names of those in which that method returned GlobalValue::LinkOnceODRLinkage.