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======================
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LLVM 3.5 Release Notes
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======================
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.. contents::
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:local:
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.. warning::
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These are in-progress notes for the upcoming LLVM 3.5 release. You may
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prefer the `LLVM 3.4 Release Notes <http://llvm.org/releases/3.4/docs
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/ReleaseNotes.html>`_.
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Introduction
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============
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This document contains the release notes for the LLVM Compiler Infrastructure,
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release 3.5. Here we describe the status of LLVM, including major improvements
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from the previous release, improvements in various subprojects of LLVM, and
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some of the current users of the code. All LLVM releases may be downloaded
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from the `LLVM releases web site <http://llvm.org/releases/>`_.
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For more information about LLVM, including information about the latest
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release, please check out the `main LLVM web site <http://llvm.org/>`_. If you
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have questions or comments, the `LLVM Developer's Mailing List
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<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>`_ is a good place to send
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them.
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Note that if you are reading this file from a Subversion checkout or the main
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LLVM web page, this document applies to the *next* release, not the current
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one. To see the release notes for a specific release, please see the `releases
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page <http://llvm.org/releases/>`_.
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Non-comprehensive list of changes in this release
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=================================================
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* All backends have been changed to use the MC asm printer and support for the
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non MC one has been removed.
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* The ARM back-end now has the EHABI exception handling enabled by default. Use
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`-arm-disable-ehabi` to turn it off (both landing pads and unwind tables).
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* Clang can now successfully self-host itself on Linux/Sparc64 and on
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FreeBSD/Sparc64.
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* LLVM now assumes the assembler supports ``.loc`` for generating debug line
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numbers. The old support for printing the debug line info directly was only
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used by ``llc`` and has been removed.
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* All inline assembly is parsed by the integrated assembler when it is enabled.
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Previously this was only the case for object-file output. It is now the case
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for assembly output as well. The integrated assembler can be disabled with
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the ``-no-integrated-as`` option,
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* llvm-ar now handles IR files like regular object files. In particular, a
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regular symbol table is created for symbols defined in IR files.
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.. NOTE
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For small 1-3 sentence descriptions, just add an entry at the end of
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this list. If your description won't fit comfortably in one bullet
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point (e.g. maybe you would like to give an example of the
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functionality, or simply have a lot to talk about), see the `NOTE` below
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for adding a new subsection.
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* ... next change ...
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.. NOTE
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If you would like to document a larger change, then you can add a
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subsection about it right here. You can copy the following boilerplate
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and un-indent it (the indentation causes it to be inside this comment).
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Special New Feature
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-------------------
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Makes programs 10x faster by doing Special New Thing.
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External Open Source Projects Using LLVM 3.5
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============================================
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An exciting aspect of LLVM is that it is used as an enabling technology for
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a lot of other language and tools projects. This section lists some of the
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projects that have already been updated to work with LLVM 3.5.
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Additional Information
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======================
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A wide variety of additional information is available on the `LLVM web page
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<http://llvm.org/>`_, in particular in the `documentation
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<http://llvm.org/docs/>`_ section. The web page also contains versions of the
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API documentation which is up-to-date with the Subversion version of the source
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code. You can access versions of these documents specific to this release by
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going into the ``llvm/docs/`` directory in the LLVM tree.
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If you have any questions or comments about LLVM, please feel free to contact
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us via the `mailing lists <http://llvm.org/docs/#maillist>`_.
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