[PATCH] [X86 DAG] Lower vselects with a constant condition as blend+imm if possible

[Filipe Cabecinhas]

Hi Nadav,

I'll separate the patch in three commits:
- Actually lower VSELECTs, possibly with no additional functionality
  - Optimize lowered VSELECTs when possible
- PerformSELECTCombine changes

  Filipe


On Wed, May 14, 2014 at 1:22 PM, Nadav Rotem <nrotem at apple.com> wrote:

> Overall this change makes sense. I did not review the patch carefully but
> I noticed that Andrea did. When you commit please split this patch to the
> different optimizations: shuffle blends, BLENDI, etc.
>
> http://reviews.llvm.org/D3752
>
>
>
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