[llvm-commits] [llvm] r77989 - in /llvm/trunk: lib/CodeGen/LowerSubregs.cpp lib/CodeGen/MachineInstr.cpp test/CodeGen/ARM/2009-08-02-RegScavengerAssert-Neon.ll

[Evan Cheng]

On Aug 4, 2009, at 10:39 PM, Jakob Stoklund Olesen wrote:

>
> On 04/08/2009, at 19.31, Evan Cheng wrote:
>
>> There isn't a client for backward() right now so I am not too
>> concerned about it. But in this case, it would assume R0 is not-live.
>
> I think I understand <undef> now, and I think backward() can work. It
> just has to ignore <undef> operands, just like forward().
>
> Anyway, if there are no clients, can I kill it? It is bit rotting.

Sure.

Evan

>
> /jakob
>
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