[PATCH] [PPC64] Add 64-bit Vector Integer Arithmetic Instructions

[Kit Barton]

================
Comment at: lib/Headers/altivec.h:1533
@@ -1503,1 +1532,3 @@
 
+/* vec_vcmpgtsd */
+#ifdef __POWER8_VECTOR__
----------------
hfinkel wrote:
> nemanjai wrote:
> > I am just curious why we are adding these. The ABI document specifies the [byte, halfword, word] versions of these as "deprecated and provided for compatibility only". Furthermore, it does not list the doubleword versions of these.
> Generally speaking, a deprecated facility in a standard still needs to be provided by an implementation. However, if these are deprecated, we should add __attribute__((deprecated)) to these.
> 
I didn't realize these were deprecated in the ABI document. The corresponding byte, halfword, and word versions have not been marked as deprecated, so I added these for consistency.

I'll add the deprecated attribute to these now, and check the ABI document to see if others should be marked as deprecated also.

http://reviews.llvm.org/D8041

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