[PATCH] D20617: [X86][SSE] _mm_store1_ps/_mm_store1_pd should require an aligned pointer

[Simon Pilgrim via cfe-commits]

RKSimon added a comment.

In http://reviews.llvm.org/D20617#439200, @craig.topper wrote:

> Can you double check gcc's xmmintrin.h again. I'm pretty sure _mm_store1_ps
>  is calling _mm_storeu_ps.


Yes you're right - for gcc _mm_store1_pd is aligned (and there is a comment saying it must be), but _mm_store1_ps is unaligned. The intel intrinsics docs and msvc codegen both set both ps and pd versions to aligned store though.

If you wish I can just do the pd fixes - we are alone in doing a extract + 2*movsd - the rest all use shufpd+movapd

Suggestions for ps?


Repository:
  rL LLVM

http://reviews.llvm.org/D20617