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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2024 Efraim Flashner <efraim@flashner.co.il>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages llvm-meta)
+  #:use-module (guix utils)
+  #:export (clang-compiler-cpu-architectures))
+
+(define (clang-compiler-cpu-architectures version)
+  "Return package properties for Clang VERSION."
+  `((compiler-cpu-architectures
+      ;; These lists were obtained by running:
+      ;;
+      ;; guix shell clang -- llc -march=x86-64 -mattr=help
+      ;;
+      ;; and then filtering against clang/test/Misc/target-invalid-cpu-note.c
+      ("powerpc64le"
+       ,@(if (version>=? version "11.0")
+           '("power8" "power9" "power10" "powerpc64le")))
+      ("x86_64"
+       ,@(cond
+           ((version>=? version "17.0")
+            '("nocona" "core2" "penryn" "bonnell" "atom" "silvermont" "slm"
+              "goldmont" "goldmont-plus" "tremont" "nehalem" "corei7" "westmere"
+              "sandybridge" "corei7-avx" "ivybridge" "core-avx-i" "haswell"
+              "core-avx2" "broadwell" "skylake" "skylake-avx512" "skx"
+              "cascadelake" "cooperlake" "cannonlake" "icelake-client"
+              "rocketlake" "icelake-server" "tigerlake" "sapphirerapids"
+              "alderlake" "raptorlake" "meteorlake" "sierraforest" "grandridge"
+              "graniterapids" "graniterapids-d" "emeraldrapids" "knl" "knm" "k8"
+              "athlon64" "athlon-fx" "opteron" "k8-sse3" "athlon64-sse3"
+              "opteron-sse3" "amdfam10" "barcelona" "btver1" "btver2" "bdver1"
+              "bdver2" "bdver3" "bdver4" "znver1" "znver2" "znver3" "znver4"
+              "x86-64" "x86-64-v2" "x86-64-v3" "x86-64-v4"))
+           ((version>=? version "16.0")
+            '("nocona" "core2" "penryn" "bonnell" "atom" "silvermont" "slm"
+              "goldmont" "goldmont-plus" "tremont" "nehalem" "corei7" "westmere"
+              "sandybridge" "corei7-avx" "ivybridge" "core-avx-i" "haswell"
+              "core-avx2" "broadwell" "skylake" "skylake-avx512" "skx"
+              "cascadelake" "cooperlake" "cannonlake" "icelake-client"
+              "rocketlake" "icelake-server" "tigerlake" "sapphirerapids"
+              "alderlake" "raptorlake" "meteorlake" "sierraforest" "grandridge"
+              "graniterapids" "emeraldrapids" "knl" "knm" "k8" "athlon64"
+              "athlon-fx" "opteron" "k8-sse3" "athlon64-sse3" "opteron-sse3"
+              "amdfam10" "barcelona" "btver1" "btver2" "bdver1" "bdver2"
+              "bdver3" "bdver4" "znver1" "znver2" "znver3" "znver4" "x86-64"
+              "x86-64-v2" "x86-64-v3" "x86-64-v4"))
+           ((version>=? version "13.0")
+            '("nocona" "core2" "penryn" "bonnell" "atom" "silvermont" "slm"
+              "goldmont" "goldmont-plus" "tremont" "nehalem" "corei7" "westmere"
+              "sandybridge" "corei7-avx" "ivybridge" "core-avx-i" "haswell"
+              "core-avx2" "broadwell" "skylake" "skylake-avx512" "skx"
+              "cascadelake" "cooperlake" "cannonlake" "icelake-client"
+              "rocketlake" "icelake-server" "tigerlake" "sapphirerapids"
+              "alderlake" "knl" "knm" "k8" "athlon64" "athlon-fx" "opteron"
+              "k8-sse3" "athlon64-sse3" "opteron-sse3" "amdfam10" "barcelona"
+              "btver1" "btver2" "bdver1" "bdver2" "bdver3" "bdver4" "znver1"
+              "znver2" "znver3" "x86-64" "x86-64-v2" "x86-64-v3" "x86-64-v4"))
+           ((version>=? version "9.0")
+            '("atom" "silvermont" "slm" "goldmont" "goldmont-plus" "tremont"
+              "nehalem" "corei7" "westmere" "sandybridge" "corei7-avx"
+              "ivybridge" "core-avx-i" "haswell" "core-avx2" "broadwell"
+              "skylake" "skylake-avx512" "skx" "cascadelake" "cooperlake"
+              "cannonlake" "icelake-client" "icelake-server" "knl" "knm" "k8"
+              "athlon64" "athlon-fx" "opteron" "k8-sse3" "athlon64-sse3"
+              "opteron-sse3" "amdfam10" "barcelona" "btver1" "btver2" "bdver1"
+              "bdver2" "bdver3" "bdver4" "znver1" "znver2" "x86-64"))
+           (else '()))))))