.. warning::
These are in-progress notes for the upcoming LLVM 3.7 release. You may
- prefer the `LLVM 3.5 Release Notes <http://llvm.org/releases/3.5.0/docs
+ prefer the `LLVM 3.6 Release Notes <http://llvm.org/releases/3.6.0/docs
/ReleaseNotes.html>`_.
* The minimum required Visual Studio version for building LLVM is now 2013
Update 4.
+* A new documentation page, :doc:`Frontend/PerformanceTips`, contains a
+ collection of tips for frontend authors on how to generate IR which LLVM is
+ able to effectively optimize.
+
+* The DataLayout is no longer optional. All the IR level optimizations expects
+ it to be present and the API has been changed to use a reference instead of
+ a pointer to make it explicit. The Module owns the datalayout and it has to
+ match the one attached to the TargetMachine for generating code.
+
* ... next change ...
.. NOTE