83 lines
2.8 KiB
Nix
83 lines
2.8 KiB
Nix
{ lib, stdenv, fetchFromGitHub, fetchpatch
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, cmake, which, m4, python3, bison, flex, llvmPackages
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# the default test target is sse4, but that is not supported by all Hydra agents
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, testedTargets ? [ "sse2" ]
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}:
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stdenv.mkDerivation rec {
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pname = "ispc";
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version = "unstable-2021-04-02";
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src = fetchFromGitHub {
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owner = pname;
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repo = pname;
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# ISPC release 1.15.0 doesn't build against LLVM 11.1, only against 11.0. So we
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# use latest ISPC main branch for now, until they support an LLVM version we have.
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# https://github.com/ispc/ispc/issues/2027#issuecomment-784470530
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rev = "3e8313568265d2adfbf95bd6b6e1a4c70ef59bed";
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sha256 = "sha256-gvr+VpoacmwQlP5gT4MnfmKdACZWJduVMIpR0YRzseg=";
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};
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patches = [
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# Fix cmake error: `Failed to find clang++`
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# https://github.com/ispc/ispc/pull/2055
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(fetchpatch {
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url = "https://github.com/erictapen/ispc/commit/338119b2f4e11fcf0b0852de296c320928e572a2.patch";
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sha256 = "sha256-+RqDq1LMWomu/K4SgK0Nip47b1RwyM6W0cTSNGD4+m4=";
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})
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];
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nativeBuildInputs = [ cmake which m4 bison flex python3 ];
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buildInputs = with llvmPackages; [
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# we need to link against libclang, so we need the unwrapped
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llvm llvmPackages.clang-unwrapped
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];
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postPatch = ''
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substituteInPlace CMakeLists.txt \
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--replace curses ncurses
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substituteInPlace cmake/GenerateBuiltins.cmake \
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--replace 'bit 32 64' 'bit 64'
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'';
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inherit testedTargets;
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# needs 'transcendentals' executable, which is only on linux
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doCheck = stdenv.isLinux;
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# the compiler enforces -Werror, and -fno-strict-overflow makes it mad.
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# hilariously this is something of a double negative: 'disable' the
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# 'strictoverflow' hardening protection actually means we *allow* the compiler
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# to do strict overflow optimization. somewhat misleading...
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hardeningDisable = [ "strictoverflow" ];
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checkPhase = ''
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export ISPC_HOME=$PWD/bin
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for target in $testedTargets
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do
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echo "Testing target $target"
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echo "================================"
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echo
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(cd ../
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PATH=${llvmPackages.clang}/bin:$PATH python run_tests.py -t $target --non-interactive --verbose --file=test_output.log
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fgrep -q "No new fails" test_output.log || exit 1)
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done
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'';
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cmakeFlags = [
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"-DCLANG_EXECUTABLE=${llvmPackages.clang}/bin/clang"
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"-DCLANGPP_EXECUTABLE=${llvmPackages.clang}/bin/clang++"
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"-DISPC_INCLUDE_EXAMPLES=OFF"
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"-DISPC_INCLUDE_UTILS=OFF"
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"-DARM_ENABLED=FALSE"
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];
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meta = with lib; {
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homepage = "https://ispc.github.io/";
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description = "Intel 'Single Program, Multiple Data' Compiler, a vectorised language";
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license = licenses.bsd3;
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platforms = [ "x86_64-linux" "x86_64-darwin" ]; # TODO: buildable on more platforms?
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maintainers = with maintainers; [ aristid thoughtpolice ];
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};
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}
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