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2020 Jul 22
3
Metadata in LLVM back-end
Hi all, Currently metadata (other than debug info) can be attached to IR instructions but disappears during DAG selection. My question is why we do not keep the metadata during code lowering and then attach to MachineInstr, just as for IR instructions? Is there any technical challenge, or is it only because nobody wants to do so? Thanks for your help, Best, -------------- next part