[LLVMdev] MIPS 32bit code generation

[Gang-Ryung Uh]

I don't think I ever said that the MIPS target is broken. I am simply trying
to branch out one additional llc target for SimpleScalar PISA architecture.

On Fri, Oct 7, 2011 at 2:41 PM, Jim Grosbach <grosbach at apple.com> wrote:

> I reiterate. You should fix the simulator. It is broken. The compiler is
> not. Fix what's broken.
>
> -Jim
>
> On Oct 7, 2011, at 1:11 PM, Gang-Ryung Uh wrote:
>
> > Hi,
> >
> >      I noticed one class in MipsInstrFormats.td:L46  -> Class MipsPseudo.
> I wonder whether I can use this. If does, I wonder what would be the right
> way to use. Thanks,
> >
> >
> >
> > On Thu, Oct 6, 2011 at 11:29 AM, Akira Hatanaka <ahatanak at gmail.com>
> wrote:
> > Do you want to replace
> >
> > lui $2, %hi(g1)
> > addiu $2, $2, %lo(g1)
> >
> > with this?
> > la $2, g1
> >
> > If that is the case, you can add this pattern.
> >
> > def op_la : Operand<i32>;
> >
> > def LA :
> >  FI<0x09, (outs CPURegs:$dst), (ins op_la:$addr0, op_la:$addr1),
> >     "la $dst, $addr0", [(set CPURegs:$dst,
> >                         (add (MipsHi tglobaladdr:$addr0), (MipsLo
> > tglobaladdr:$addr1)))], IIAlu>;
> >
> > Note that you still need to find a way to print "g1" instead of
> "%hi(g1)".
> >
> > On Wed, Oct 5, 2011 at 4:01 PM, Gang-Ryung Uh <guh at boisestate.edu>
> wrote:
> > > Hi,
> > >      In order to emit "la $4,ADDR" instead of lui followed by addiu to
> load
> > > the data address, could you advise what is proper way to revise td
> files in
> > > the MIPS target?
> > > Thanks,
> > >
> > > --
> > > Gang-Ryung Uh, Associate Professor
> > > Department of Computer Science
> > > College of Engineering, Boise State Univerisity
> > > tel: 1 208 426-5691  e-mail:guh at boisestate.edu
> > > http://cs.boisestate.edu/~uh
> > >
> > >
> > >
> > > _______________________________________________
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> > >
> > >
> >
> >
> >
> > --
> > Gang-Ryung Uh, Associate Professor
> > Department of Computer Science
> > College of Engineering, Boise State Univerisity
> > tel: 1 208 426-5691  e-mail:guh at boisestate.edu
> > http://cs.boisestate.edu/~uh
> >
> >
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>


-- 
Gang-Ryung Uh, Associate Professor
Department of Computer Science
College of Engineering, Boise State Univerisity
tel: 1 208 426-5691  e-mail:guh at boisestate.edu
http://cs.boisestate.edu/~uh
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