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...s [0,1] and enabled interprocedural optimizations [2], host-device optimizations inside a heterogeneous module are really not (much) different than any other interprocedural optimization. [0] https://llvm.org/docs/LangRef.html#callback-metadata [1] https://youtu.be/zfiHaPaoQPc [2] https://youtu.be/CzWkc_JcfS0 Where are the details? ---------------------- This is merely a proposal to get feedback. I talked to people before and got mixed results. I think this can be done in an "opt-in" way that is non-disruptive and without penalty. I sketched some ideas in [3] but *THIS IS NOT A PROPER PATCH...

Thanks for the reply! It sounds like LLVM IR is being considered for optimizations in OpenMP constructs. There seems to be plans regarding improvement of LLVM IR Framework for providing things required for OpenMP / flang(?) Are there any design considerations which contain pros and cons about using the MLIR vs LLVM IR for various OpenMP related optimizations/ transformations? The latest RFC [