[LLVMdev] a question to backend

Bruce Hoult bruce at hoult.org
Wed Mar 18 23:48:19 PDT 2015

You might want to have a look at a fairly up to date and actively developed
out of tree llvm back end for another 8 bit microcontroller, the AVR


On Thu, Mar 19, 2015 at 7:26 PM, <qiuw at ichaier.com> wrote:

> Hi, all
> I am writting a new backend for a 8-bits target machine(8051). Because the
> most backends supported by LLVM are for 32-bits targets, most of
> implementations for 16/32 bits operating had to depend on runtime
> libraries. In this case, it will decrease the generated code efficency. I
> found that the LLVM 2.5 supported the PIC16, but the lastest version do not
> support 8-bits target.  What is the purpose to this change?  Dose it mean
> that the existing LLVM backend are not available to write 8-bits/16-bits
> bankend? Thanks a lot.
> --------------
> Steven.
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