Brian Callahan <[email protected]> wrote:
> Hi ports --
> 
> Attached is a new port, lang/qbe. QBE is a small, quick compiler backend.
> 
> ---
> pkg/DESCR:
> QBE is a compiler backend. It aims to be a pure C embeddable backend
> that provides 70% of the performance of advanced compilers in 10% of the
> code. Its small size serves both its aspirations of correctness and our
> ability to understand, fix, and improve it. It also serves its users by
> providing trivial integration and great flexibility.
> ---
> 
> All tests pass on amd64.
> 
> I marked this port ONLY_FOR_ARCHS=amd64 arm64 riscv64. While QBE
> probably builds on all archs, it only generates assembly for these three
> archs. I notated this in the Makefile. Like LLVM, you always get all
> three assembly generators in the qbe executable.
> 
> This is a neat little program for amateur compiler writers: you can
> write your frontend to target QBE and end up with pretty decently
> optimized assembly code.
> 
> OK?
> 
> ~Brian

I played a bit with your brainfuck compiler and cproc, everything works
fine!  Compiling even an hello world with cproc wasn't exactly easy, it
doesn't really like the inline assembly in machine/endian.h, but it's not
difficoult either and it works fine with qbe.

It's ok for me to import.

Just a question thought: what about installing doc/*.txt too?  il.txt is
quite interesting to read, especially given that there isn't other
documentation in the source tarball AFAICS.

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