forked from mirrors/nixpkgs
8d1a524c22
This includes several enhancements in the underlying compiler, including
codegen improvements for AVX-512, Ice Lake CPU definitions,
cross-{arch,os} compilation (currently unsupported due to multilib
issues), and more.
This also bumps the LLVM backend to the 10.0 release. Note that ispc
itself requires a few extra stability patches on top of 10.0 for AVX-512
support, but these aren't applied for us. Therefore AVX-512 still has
some extra, rough edges.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
71 lines
2.2 KiB
Nix
71 lines
2.2 KiB
Nix
{ stdenv, fetchFromGitHub
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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 = "1.13.0";
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src = fetchFromGitHub {
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owner = pname;
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repo = pname;
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rev = "v${version}";
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sha256 = "1l74xkpwwxc38k2ngg7mpvswziiy91yxslgfad6688hh1n5jvayd";
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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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"-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 stdenv.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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