There is no reason to replace gcc. Cheers,
Emil ma 15. tammik. 2024 klo 7.32 Ben Shi via Discussion of avr-libc development <avr-libc-dev@nongnu.org> kirjoitti: > Dear AVR-libc developers, > > > I am current maintainer of the llvm-avr backend, and I would like to ask > for your feedback on my work. My final goal is making > clang-llvm-lld-compiler_rt chain fully functional, and let AVR program > developers get rid of the GNU tool chain. So any complain/concern/report is > welcome. > > > Current known issues: > > > 1. The clang frontend still does not support float-64 type and int24 type. > 2. The clang frontend does not support virtual functions in C++ classes. > 3. The 32-bit mul/div are not supported in compiler-rt, though > 8-bit/16-bit ones are supported. > 4. The lld should have support all functionality compared to GNU-ld. > (There may be bugs, but it should be quite stable.) > 5. The lld accepts all syntax of GNU linker script, except > 'KEEP(SORT(*)(.ctors))', so you need to do a little modification to the > linker scripts distributed within avr-gcc, and use lld style syntax. > 6. There are still some minor bugs in the llvm backend. ( > https://github.com/llvm/llvm-project/issues?q=is%3Aopen+is%3Aissue+label%3Abackend%3AAVR > ) > > > Generally speaking I have written some simple test programs with the > clang/llvm/lld chain on Arduino boards, which are stable. So I would ask > for more tests and reports by you. You can specify lld with command line > option '-fuse-ld=lld'. > > > You are appreciated to report issues to me at > https://github.com/llvm/llvm-project/issues, and do not forget to set the > issue's label to 'backend:avr'. > > > I hope my work can be fully accepted by the aruidno community and finally > replace the GNU toolchain in its package releases in the future. > > > Best regards, > > > Ben Shi
