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adc53b8e
2009 Feb 23
0
[LLVMdev] [llvm-commits] [llvm] r65296 - in /llvm/trunk: include/llvm/CodeGen/ lib/CodeGen/SelectionDAG/ lib/Target/CellSPU/ lib/Target/PowerPC/ lib/Target/X86/ test/CodeGen/X86/
...of a bijective ISD to
SDNode mapping), but eliminating BuildVectorSDNode in its entirety doesn't
deal with constant and variable vectors.
-scooter
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2009 Feb 23
2
[LLVMdev] [llvm-commits] [llvm] r65296 - in /llvm/trunk: include/llvm/CodeGen/ lib/CodeGen/SelectionDAG/ lib/Target/CellSPU/ lib/Target/PowerPC/ lib/Target/X86/ test/CodeGen/X86/
On Feb 23, 2009, at 1:46 PM, Chris Lattner wrote:
> In my opinion, the proper direction for shuffles is:
>
> 1. Back out your patch.
> 2. Move the functionality of "is splat" etc to method somewhere, e.g.
> on SDNode.
> 3. Introduce a new ShuffleVectorSDNode that only has two SDValue
> operands (the two input vectors), but that also contains an array of
> ints in