How to create a atomic store/load with LLVM IR from C++?

Beginners
1

I was skinning through LLVM Atomic Instructions and Concurrency Guid, trying to figure how to create atomic (thread safe) store/loads.

I saw that there are load atomic and store atomic instructions.

load atomic and store atomic provide the same basic functionality as non-atomic loads and stores, but provide additional guarantees in situations where threads and signals are involved.

I’m wondering how I can create them with the C++ API, currently I’m creating them with a IRBuilder like so CreateLoad and CreateStore.

How can I create load atomic and store atomic operations?

2

You call setAtomic on the LoadInst or StoreInst returned by the Create* functions. E.g. this one.

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3

Thanks!