r205076 regresses mips 32 direct object emitter

[Daniel Sanders]

The crash in xgot.s in r205042 is a bug in the assembly parser that doesn't affect 'llc -filetype=obj'. There are a few kinds of relocations that aren't recognised in MipsAsmParser::getVariantKind() and it ends up passing VK_Mips_None into the MC layer instead of asserting or reporting an error. I've got a fix for it in my working copy.

> -----Original Message-----
> From: Rafael Espíndola [mailto:rafael.espindola at gmail.com]
> Sent: 31 March 2014 15:48
> To: Daniel Sanders
> Cc: Reed Kotler; llvm-commits at cs.uiuc.edu; Doug Gilmore
> Subject: Re: r205076 regresses mips 32 direct object emitter
> 
> On 31 March 2014 09:48, Daniel Sanders <Daniel.Sanders at imgtec.com>
> wrote:
> > Hi,
> >
> >
> >
> > I'm not sure if this is related or not yet but I noticed that if I
> > resurrect xgot.ll (converted to an assembly test in
> > http://llvm-reviews.chandlerc.com/rL205042), it no longer passes.
> 
> Unlikely. The .s test would already crash llvm-mc in r205042:
> 
> 
> 
> Cheers,
> Rafael