LLVM 17.0.0git Release Notes

Warning

These are in-progress notes for the upcoming LLVM 17 release. Release notes for previous releases can be found on the Download Page.

Introduction

This document contains the release notes for the LLVM Compiler Infrastructure, release 17.0.0git. Here we describe the status of LLVM, including major improvements from the previous release, improvements in various subprojects of LLVM, and some of the current users of the code. All LLVM releases may be downloaded from the LLVM releases web site.

For more information about LLVM, including information about the latest release, please check out the main LLVM web site. If you have questions or comments, the Discourse forums is a good place to ask them.

Note that if you are reading this file from a Git checkout or the main LLVM web page, this document applies to the next release, not the current one. To see the release notes for a specific release, please see the releases page.

Non-comprehensive list of changes in this release

Changes to the LLVM IR

  • Typed pointers are no longer supported. See the opaque pointers documentation for migration instructions.

Changes to the ARM Backend

  • The hard-float ABI is now available in Armv8.1-M configurations that have integer MVE instructions (and therefore have FP registers) but no scalar or vector floating point computation.

Changes to the RISC-V Backend

  • Assembler support for version 1.0.1 of the Zcb extension was added.
  • Zca, Zcf, and Zcd extensions were upgraded to version 1.0.1.

Changes to the C API

  • LLVMContextSetOpaquePointers, a temporary API to pin to legacy typed pointer, has been removed.

Changes to the Debug Info

Changes to LLDB

  • In the results of commands such as expr and frame var, type summaries will now omit defaulted template parameters. The full template parameter list can still be viewed with expr –raw-output/frame var –raw-output. (D141828)

Additional Information

A wide variety of additional information is available on the LLVM web page, in particular in the documentation section. The web page also contains versions of the API documentation which is up-to-date with the Git version of the source code. You can access versions of these documents specific to this release by going into the llvm/docs/ directory in the LLVM tree.

If you have any questions or comments about LLVM, please feel free to contact us via the Discourse forums.