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First crack at PowerPC 3.6 release notes 

llvm-svn: 225695
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Bill Schmidt 2015-01-12 20:46:43 +00:00
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llvm/docs/ReleaseNotes.rst
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@ -183,7 +183,25 @@ Miscellaneous
Changes to the PowerPC Target
-----------------------------
During this release ...
There are numerous improvements to the PowerPC target in this release:
* LLVM now generates the Vector-Scalar eXtension (VSX) instructions from
version 2.06 of the Power ISA, for both big- and little-endian targets.
* LLVM now has a POWER8 instruction scheduling description.
* Address Sanitizer (ASAN) support is now fully functional.
* Performance of simple atomic accesses has been greatly improved.
* Atomic fences now use light-weight syncs where possible, again providing
significant performance benefit.
* The PowerPC target now supports PIC levels (-fPIC vs. -fpic).
* PPC32 SVR4 now supports small-model PIC.
* There have been many smaller bug fixes and performance improvements.
External Open Source Projects Using LLVM 3.6
============================================