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