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2016 Jun 04
4
Gluing arbitrary nodes together
Hello all, I am working on adding atomics support to the AVR backend. Because the target can only have one core, it is sufficient to: - Save the status register - Disable interrupts - Do the nonatomic LOAD/STORE/SWAP/ADD - Restore the status register I’d really like to be able to do this at the IR level. What I want to do is write a custom lowering hook to convert ISD::ATOMIC_LOAD