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2013 Aug 01
1
[LLVMdev] Lowering Atomic Load to Acquire and Load
I'm working with an experimental backend for an MCU with heavy multithreading capabilities but lacks proper acquire/release semantics. This is okay, as the programmer can customize __cxa_guard_acquire and __cxa_guard_release to lower/raise appropriate semaphores. The issue I'm having is that I can't seem to figure out when to lower atomic load into an acquire/load pair early