[LLVMdev] [RFC/PATCH][0/4] New SystemZ backend

Anton Korobeynikov
Sun, 14 Apr 2013 18:40:33 -0000

> I'd like to propose the addition of a new SystemZ backend to the LLVM
and
> Clang code base.  We're interested in this for the same reason
we've been
> interested in the PowerPC back-end recently: to enable packages in upcoming
> enterprise Linux distributions that need LLVM support (e.g. 3D desktop
> support via llvmpipe).
Cool!

> - focus on feature completeness and correctness, not performance  (no
> platform-specific optimizations have been implemented yet)
My understanding is that the most important things here are:
1. Precise flags tracking & using (LLVM is not so good at this)
2. Good scheduling (are recent z10's still in-order?)

--
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University