llvm dev - Apr 2013 - [LLVMdev] multiple metadata fields

            

Hello everyone,

As i saw that is not possible to add metadata to a basic block, it is possible
to add more metadata fields to an instruction?


I saw that in the definition of setMetadata(), it updates/replaces the metadata
if already existent. As far as I understand, updates=replaces, not updates OR
replaces. I add metadata using :


            LLVMContext& C = instr->getContext();
            MDNode* N = MDNode::get(C, MDString::get(C, "var"));
            instr->setMetadata("varvar", N);


Thank you in advance !
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