[llvm-commits] [llvm] r166770 - /llvm/trunk/lib/Target/PowerPC/PPCInstr64Bit.td

[Rafael Espíndola]

> For reference, on the asmparser front, I only got far enough to get hung
> up on PointerLikeRegClass support within tablegen.   (i.e.
> http://llvm.org/bugs/show_bug.cgi?id=14011 "tblgen support for ptr_rc /
> PointerLikeRegClass incomplete for gen-asm-matcher " ).   Attempts to
> work around that by wrapping the ptr_rc references within something
> Operand derived led to other errors, so I wasn't sure that was the right
> approach.
> ( http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-September/053566.html
> )

I am sorry I am not familiar with tablegen and unable to help you in
here, but we really have to figure something out. Having a backend
with direct object emission and no testing is a recipe for disaster.

If you want, check the early days of X86 ELF support where every fix I
wrote caused some other bug which Roman found. Things only got better
with a lot of asm -> .o testing in make check.

How much do do you need to test this? Can you enable just a few
instructions in the parser to avoid the tablegen bug?

> Thanks,
> -Will

Cheers,
Rafael