1========================= 2LLVM 14.0.0 Release Notes 3========================= 4 5.. contents:: 6 :local: 7 8.. warning:: 9 These are in-progress notes for the upcoming LLVM 14 release. 10 Release notes for previous releases can be found on 11 `the Download Page <https://releases.llvm.org/download.html>`_. 12 13 14Introduction 15============ 16 17This document contains the release notes for the LLVM Compiler Infrastructure, 18release 14.0.0. Here we describe the status of LLVM, including major improvements 19from the previous release, improvements in various subprojects of LLVM, and 20some of the current users of the code. All LLVM releases may be downloaded 21from the `LLVM releases web site <https://llvm.org/releases/>`_. 22 23For more information about LLVM, including information about the latest 24release, please check out the `main LLVM web site <https://llvm.org/>`_. If you 25have questions or comments, the `LLVM Developer's Mailing List 26<https://lists.llvm.org/mailman/listinfo/llvm-dev>`_ is a good place to send 27them. 28 29Note that if you are reading this file from a Git checkout or the main 30LLVM web page, this document applies to the *next* release, not the current 31one. To see the release notes for a specific release, please see the `releases 32page <https://llvm.org/releases/>`_. 33 34Non-comprehensive list of changes in this release 35================================================= 36.. NOTE 37 For small 1-3 sentence descriptions, just add an entry at the end of 38 this list. If your description won't fit comfortably in one bullet 39 point (e.g. maybe you would like to give an example of the 40 functionality, or simply have a lot to talk about), see the `NOTE` below 41 for adding a new subsection. 42 43 44.. NOTE 45 If you would like to document a larger change, then you can add a 46 subsection about it right here. You can copy the following boilerplate 47 and un-indent it (the indentation causes it to be inside this comment). 48 49 Special New Feature 50 ------------------- 51 52 Makes programs 10x faster by doing Special New Thing. 53 54* ... 55 56Changes to the LLVM IR 57---------------------- 58 59* Using the legacy pass manager for the optimization pipeline is deprecated and 60 will be removed after LLVM 14. In the meantime, only minimal effort will be 61 made to maintain the legacy pass manager for the optimization pipeline. 62* Max allowed integer type was reduced from 2^24-1 bits to 2^23 bits. 63 64Changes to building LLVM 65------------------------ 66 67* ... 68 69Changes to TableGen 70------------------- 71 72Changes to the AArch64 Backend 73------------------------------ 74 75* ... 76 77Changes to the ARM Backend 78-------------------------- 79 80During this release ... 81 82Changes to the MIPS Target 83-------------------------- 84 85During this release ... 86 87Changes to the Hexagon Target 88----------------------------- 89 90* ... 91 92Changes to the PowerPC Target 93----------------------------- 94 95During this release ... 96 97Changes to the X86 Target 98------------------------- 99 100During this release ... 101 102* Support for ``AVX512-FP16`` instructions has been added. 103 104Changes to the AMDGPU Target 105----------------------------- 106 107During this release ... 108 109Changes to the AVR Target 110----------------------------- 111 112During this release ... 113 114Changes to the WebAssembly Target 115--------------------------------- 116 117During this release ... 118 119Changes to the OCaml bindings 120----------------------------- 121 122 123Changes to the C API 124-------------------- 125 126* ... 127 128Changes to the Go bindings 129-------------------------- 130 131 132Changes to the FastISel infrastructure 133-------------------------------------- 134 135* ... 136 137Changes to the DAG infrastructure 138--------------------------------- 139 140 141Changes to the Debug Info 142--------------------------------- 143 144During this release ... 145 146Changes to the LLVM tools 147--------------------------------- 148 149* ... 150 151Changes to LLDB 152--------------------------------- 153 154Changes to Sanitizers 155--------------------- 156 157External Open Source Projects Using LLVM 14 158=========================================== 159 160* A project... 161 162Additional Information 163====================== 164 165A wide variety of additional information is available on the `LLVM web page 166<https://llvm.org/>`_, in particular in the `documentation 167<https://llvm.org/docs/>`_ section. The web page also contains versions of the 168API documentation which is up-to-date with the Git version of the source 169code. You can access versions of these documents specific to this release by 170going into the ``llvm/docs/`` directory in the LLVM tree. 171 172If you have any questions or comments about LLVM, please feel free to contact 173us via the `mailing lists <https://llvm.org/docs/#mailing-lists>`_. 174