[Bug 278908] Upcoming 14.1-RELEASE LLVM -> Worse runtime performance on Zen CPU when optimizing for Zen

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278908

--- Comment #7 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/ports/commit/?id=c56fde6514ee21ccb186267c304ad444463f661c

commit c56fde6514ee21ccb186267c304ad444463f661c
Author:     Brooks Davis <brooks@FreeBSD.org>
AuthorDate: 2024-05-28 11:47:37 +0000
Commit:     Brooks Davis <brooks@FreeBSD.org>
CommitDate: 2024-05-28 11:56:43 +0000

    devel/llvm18: misc improvements

    Fix worse runtime performance on Zen CPU when optimizing for Zen. [0]

    Install all standard heaaders with clang.  Historically we've been
    unable to build FreeBSD with the full set due to conflicts and/or
    missing features between the compiler provided headers and
    FreeBSD's headers.  I've verified that I can build world and kernel on
    the main, stable/14, and stable/13 branches for amd64 so let's give it
    another try in broader testing. [1]

    PR:             278908 [0], 274542 [1]

 devel/llvm18/Makefile                              |  2 +-
 .../patch-clang_lib_Headers_CMakeLists.txt (gone)  | 37 ----------
 .../llvm18/files/patch-freebsd-cadd2ca21765 (new)  | 83 ++++++++++++++++++++++
 devel/llvm18/pkg-plist                             | 25 +++++++
 4 files changed, 109 insertions(+), 38 deletions(-)

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