[llvm-commits] [llvm] r155440 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

[Eli Friedman]

On Tue, Apr 24, 2012 at 4:27 AM, Nadav Rotem <nadav.rotem at intel.com> wrote:
> Author: nadav
> Date: Tue Apr 24 06:27:53 2012
> New Revision: 155440
>
> URL: http://llvm.org/viewvc/llvm-project?rev=155440&view=rev
> Log:
> AVX2: The BLENDPW instruction selects between vectors of v16i16 using an i8
> immediate. We can't use it here because the shuffle code does not check that
> the lower part of the word is identical to the upper part.
>
>
> 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=155440&r1=155439&r2=155440&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Apr 24 06:27:53 2012
> @@ -5443,12 +5443,6 @@
>     ISDNo = X86ISD::BLENDPD;
>     OpTy = MVT::v4f64;
>     break;
> -  case MVT::v16i16:
> -    if (!Subtarget->hasAVX2())
> -      return SDValue();
> -    ISDNo = X86ISD::BLENDPW;
> -    OpTy = MVT::v16i16;
> -    break;
>   }
>   assert(ISDNo && "Invalid Op Number");

Testcase?

-Eli