[PATCH] Fix big-endian NEON intrinsics

[James Molloy]

Hi Tim,

 

This is the final big-endian patch in my queue. With it, we pass the emperor
testcases that I've run.

 

The NEON intrinsics in arm_neon.h are designed to work on vectors "as-if"
loaded by (V)LDR. We load vectors "as-if" (V)LD1, so the intrinsics are
currently incorrect.

 

This patch adds big-endian versions of the intrinsics that does the "obvious
but dumb" thing of reversing all vector inputs and all vector outputs. This
will produce extra REVs, but we trust the optimizer to remove them.

 

Could you please review? There's a documentation patch for BigEndianNeon.rst
on the way too.

 

Cheers,

 

James
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20140617/23d6d140/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-ARM-BE-Generate-correct-NEON-intrinsics-for-big-endi.patch
Type: application/octet-stream
Size: 8882 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20140617/23d6d140/attachment.obj>