[all-commits] [llvm/llvm-project] c377ce: [AArch64][VecLib] Add libmvec support for AArch64 ...

[Mary Kassayova via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c377ce1216a8ce73c940d2366a7bf223790f43b4
      https://github.com/llvm/llvm-project/commit/c377ce1216a8ce73c940d2366a7bf223790f43b4
  Author: Mary Kassayova <mary.kassayova at arm.com>
  Date:   2025-06-17 (Tue, 17 Jun 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/test/Driver/fveclib.c
    M llvm/include/llvm/Analysis/VecFuncs.def
    M llvm/lib/Analysis/TargetLibraryInfo.cpp
    A llvm/test/CodeGen/AArch64/replace-with-veclib-libmvec-scalable.ll
    A llvm/test/CodeGen/AArch64/replace-with-veclib-libmvec.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/veclib-function-calls.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/veclib-intrinsic-calls.ll
    M llvm/test/Transforms/Util/add-TLI-mappings.ll

  Log Message:
  -----------
  [AArch64][VecLib] Add libmvec support for AArch64 targets (#143696)

This patch adds support for the `libmvec` vector library on AArch64
targets. Currently, all `libmvec` functions in GLIBC version 2.40 are
supported. The full list of math functions enabled can be found
[here](https://github.com/bminor/glibc/blob/96abd59bf2a11ddd4e7ccaac840ec13c0b62d3ba/sysdeps/aarch64/fpu/Versions)
(up to GLIBC 2.40).

Previously, `libmvec` was only supported on x86_64 targets. Attempts to
use it on AArch64 resulted in the following error from Clang:
`unsupported option 'libmvec' for target 'aarch64'`.



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