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Chapter 5. Changes in LLVM Toolset 20.1.8

RHEL is distributed with the LLVM Toolset version 20.1.8.

Notable changes of the LLVM compiler:

  • LLVM now includes an IRNormalizer pass that aims to output LLVM IR in a canonical form.
  • The llvm.experimental.stepvector intrinsic has been standardized.
  • SPIR-V is now a first-class backend.

Notable updates of the Clang:

  • Support for C++2c has been improved, including implementation of "The Oxford variadic comma" (P3176R1).
  • C++23 support has been enhanced, including removal of restrictions on literal types in constexpr functions.
  • Clang now defaults to emitting distinct type-based alias analysis (TBAA) tags for incompatible pointers.

For more information, see the LLVM release notes and Clang release notes.

LLVM Toolset is a rolling Application Stream, and only the latest version is supported. For more information, see the Red Hat Enterprise Linux Application Streams Life Cycle document.

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