zequanwu added a comment. In D96832#2568257 <https://reviews.llvm.org/D96832#2568257>, @aaron.ballman wrote:
> It was explicitly disallowed in the initial patch: > https://reviews.llvm.org/D12922 and the original author said "I'm still > trying to figure out the best way to handle c++ virtual functions: this > attribute is not very useful for someone who is looking for a way to reliably > prevent tail-call to a virtual function." and "I made this change because > this attribute isn't useful when the compiler cannot resolve the function > call statically at compile time and it isn't important for the use case I > have." Has this situation changed in the backend? Oh, I didn't see that. But when I tested `not_tail_called` on normal functions, it seems like not working(https://godbolt.org/z/znr5b5, `f1` is marked as `not_tail_called`, it still get inlined). Or, I misunderstand how to use it properly? Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D96832/new/ https://reviews.llvm.org/D96832 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
