Re: [avr-gcc-list] LLVM 4.0 AVR backend

[Senthil Kumar Selvaraj]

David Brown writes:

> It might be a little heretical to ask here, but has anyone tried out the
> experimental AVR backend in the latest llvm/clang release?  I have not
> made much use of clang, but it's been good for gcc to have a bit of
> friendly competition.  I think it will be interesting to see how
> clang/llvm differs from gcc for the AVR.

I built it a while back when I added basic support for avr to clang.
Dylan McKay, who IIRC has corresponded in this list before, owns the
backend, and has added a bunch of support to clang as well. His
primary motivation is to get the Rust programming language running on
the avr, again IIRC.

Last I checked, I still had to use the binutils linker, as lld didn't
yet know about the avr. The generated code did look suboptimal compared
to gcc, but I didn't play around much to be honest.

Regards
Senthil

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