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Add some release notes about the fix for PR26774 

As suggested by Chandler on the review thread for D18634.

llvm-svn: 267239
This commit is contained in:
Sanjoy Das 2016-04-22 22:45:23 +00:00
parent 580471033e
commit 784ec12a3c
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10
llvm/docs/ReleaseNotes.rst
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@ -87,6 +87,16 @@ Changes to the LLVM IR
``llvm.masked.gather`` and ``llvm.masked.scatter`` were introduced to the ``llvm.masked.gather`` and ``llvm.masked.scatter`` were introduced to the
LLVM IR to allow selective memory access for vector data types. LLVM IR to allow selective memory access for vector data types.
Changes to LLVM's IPO model
---------------------------
LLVM no longer does inter-procedural analysis and optimization (except
inlining) on functions with comdat linkage. Doing IPO over such
functions is unsound because the implementation the linker chooses at
link-time may be differently optimized than the one what was visible
during optimization, and may have arbitrarily different observable
behavior. See `PR26774 <http://llvm.org/PR26774>`_ for more details.
Changes to the ARM Backend Changes to the ARM Backend
-------------------------- --------------------------