[PATCH 1/2] R600/SI: Add kill flag when copying scratch offset to a register

[Tom Stellard]

Hi Matt,

Here is an updated patchset.

-Tom

On Thu, Jan 08, 2015 at 12:07:12PM -0800, Matt Arsenault wrote:
> 
> > On Jan 8, 2015, at 7:44 AM, Tom Stellard <thomas.stellard at amd.com> wrote:
> > 
> > This allows us to re-use the same register for the scratch offset
> > when accessing large private arrays.
> > ---
> > lib/Target/R600/SIRegisterInfo.cpp | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/lib/Target/R600/SIRegisterInfo.cpp b/lib/Target/R600/SIRegisterInfo.cpp
> > index d955c72..0b930855 100644
> > --- a/lib/Target/R600/SIRegisterInfo.cpp
> > +++ b/lib/Target/R600/SIRegisterInfo.cpp
> > @@ -256,7 +256,7 @@ void SIRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator MI,
> >         BuildMI(*MBB, MI, MI->getDebugLoc(),
> >                 TII->get(AMDGPU::V_MOV_B32_e32), TmpReg)
> >                 .addImm(Offset);
> > -        FIOp.ChangeToRegister(TmpReg, false);
> > +        FIOp.ChangeToRegister(TmpReg, false, false, true);
> >       }
> >     }
> >   }
> > -- 
> > 1.8.5.5
> > 
> > _______________________________________________
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> > llvm-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
> 
> testcase?
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