[llvm-commits] [llvm] r55147 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Evan Cheng]

Test case?

Evan
On Aug 21, 2008, at 3:36 PM, Bill Wendling wrote:

> Author: void
> Date: Thu Aug 21 17:36:36 2008
> New Revision: 55147
>
> URL: http://llvm.org/viewvc/llvm-project?rev=55147&view=rev
> Log:
> If part of the mask is "undef", then ignore it as we don't care what  
> goes into it.
>
>
> Modified:
>    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>
> Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=55147&r1=55146&r2=55147&view=diff
>
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> ======================================================================
> --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Thu Aug 21  
> 17:36:36 2008
> @@ -3479,6 +3479,8 @@
>       if (InOrder[i])
>         continue;
>       SDValue Elt = MaskElts[i];
> +      if (Elt.getOpcode() == ISD::UNDEF)
> +        continue;
>       unsigned EltIdx = cast<ConstantSDNode>(Elt)->getValue();
>       SDValue ExtOp = (EltIdx < 8)
>         ? DAG.getNode(ISD::EXTRACT_VECTOR_ELT, MVT::i16, V1,
>
>
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