r209489 - Fix a bug in xmmintrin.h.

[Akira Hatanaka]

I thought about adding a test case, but wasn’t sure how this fix should be tested.

I don’t think it’s a good idea to check the bitcode clang generates, is it?

On May 22, 2014, at 8:35 PM, Chandler Carruth <chandlerc at google.com> wrote:

> 
> On Thu, May 22, 2014 at 6:38 PM, Akira Hatanaka <ahatanaka at apple.com> wrote:
> Author: ahatanak
> Date: Thu May 22 19:38:07 2014
> New Revision: 209489
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=209489&view=rev
> Log:
> Fix a bug in xmmintrin.h.
> 
> The last step of _mm_cvtps_pi16 should use _mm_packs_pi32, which is a function
> that reads two __m64 values and packs four 32-bit values into four 16-bit
> values.
> 
> This (somewhat obviously) needs a test case.

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