grigorypas wrote: > Can you also include a few tests which show whether we suppress the warning > on disabled branches of an 'if constexpr'? > > Beware we also have bugs and odd cases in this area: > > * It should be possible to NRVO a variable which you don't actually return, > by retuning it only on disabled branches. > It would be interesting to see what the warning does in this case. > * You can generate bad code by returning a variable with the wrong type from > a disabled branch.
I added several tests with dead branches. I noticed that Clang missed NRVO opportunity in create_object5 test. I wonder if it is a know issue or not. GCC seems to handle it. https://github.com/llvm/llvm-project/pull/139973 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
