[Openmp-commits] [PATCH] D83268: [OpenMP][NFC] Remove unused (always fixed) arguments

[Alexey Bataev via Phabricator via Openmp-commits]

ABataev added a comment.

In D83268#2135951 <https://reviews.llvm.org/D83268#2135951>, @jdoerfert wrote:

> > I don't think gcc can be using this runtime library for nvptx.
>
> Yes, and: We are (going to) use clang specific intrinsics to avoid CUDA (soon).
>
> > Use of the new library with the previous version of the compiler.
>
> Except that you cannot generally expect this to work. In our supported use case the library is kept as bitcode (LLVM-IR). Bitcode is not backward compatible. An old toolchain (clang, llvm-link, ...) cannot be fed new IR and be expected to work. So, we are already not able to give a stability guarantee here, why pretend we do. The bitcode runtime has to be kept in-sync with the toolchain.


There is still compatibility between clang10 and clang11. Or they are incompatible in LLVM IR level? Also, there was a mode (I don't remember if it was removed or not) where the runtime library could be linked as `.a` library, without LLVM IR inlining.


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https://reviews.llvm.org/D83268