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{ lib, stdenv
, fetchFromGitHub
, cmake
, pkg-config
, lit
, llvm
, spirv-headers
, spirv-tools
}:
let
llvmMajor = lib.versions.major llvm.version;
isROCm = lib.hasPrefix "rocm" llvm.pname;
# ROCm will always be at the latest version
branch =
if llvmMajor == "15" || isROCm then rec {
version = "15.0.0";
rev = "v${version}";
hash = "sha256-OsDohXRxovtEXaWiRGp8gJ0dXmoALyO+ZimeSO8aPVI=";
} else if llvmMajor == "14" then rec{
version = "14.0.0";
rev = "v${version}";
hash = "sha256-BhNAApgZ/w/92XjpoDY6ZEIhSTwgJ4D3/EfNvPmNM2o=";
} else if llvmMajor == "11" then {
version = "unstable-2022-05-04";
rev = "4ef524240833abfeee1c5b9fff6b1bd53f4806b3"; # 267 commits ahead of v11.0.0
hash = "sha256-NoIoa20+2sH41rEnr8lsMhtfesrtdPINiXtUnxYVm8s=";
} else throw "Incompatible LLVM version.";
in
stdenv.mkDerivation {
pname = "SPIRV-LLVM-Translator";
inherit (branch) version;
src = fetchFromGitHub {
owner = "KhronosGroup";
repo = "SPIRV-LLVM-Translator";
inherit (branch) rev hash;
};
nativeBuildInputs = [ pkg-config cmake spirv-tools ]
++ (if isROCm then [ llvm ] else [ llvm.dev ]);
buildInputs = [ spirv-headers ]
++ lib.optionals (!isROCm) [ llvm ];
nativeCheckInputs = [ lit ];
cmakeFlags = [
"-DLLVM_INCLUDE_TESTS=ON"
"-DLLVM_DIR=${(if isROCm then llvm else llvm.dev)}"
"-DBUILD_SHARED_LIBS=YES"
"-DLLVM_SPIRV_BUILD_EXTERNAL=YES"
# RPATH of binary /nix/store/.../bin/llvm-spirv contains a forbidden reference to /build/
"-DCMAKE_SKIP_BUILD_RPATH=ON"
] ++ lib.optionals (llvmMajor != "11") [ "-DLLVM_EXTERNAL_SPIRV_HEADERS_SOURCE_DIR=${spirv-headers.src}" ];
# FIXME: CMake tries to run "/llvm-lit" which of course doesn't exist
doCheck = false;
makeFlags = [ "all" "llvm-spirv" ];
postInstall = ''
install -D tools/llvm-spirv/llvm-spirv $out/bin/llvm-spirv
'';
meta = with lib; {
homepage = "https://github.com/KhronosGroup/SPIRV-LLVM-Translator";
description = "A tool and a library for bi-directional translation between SPIR-V and LLVM IR";
license = licenses.ncsa;
platforms = platforms.unix;
maintainers = with maintainers; [ gloaming ];
};
}
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