# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

CMAKE_ECLASS=cmake

inherit cmake-multilib flag-o-matic llvm

EGIT_COMMIT="4f1a3270f2431aa98f1bff30d1a32c9d8f4729bf"
MY_PN="SPIRV-LLVM-Translator"
MY_P="${MY_PN}-${EGIT_COMMIT}"

DESCRIPTION="Bi-directional translator between SPIR-V and LLVM IR"
HOMEPAGE="https://github.com/KhronosGroup/SPIRV-LLVM-Translator"
SRC_URI="https://github.com/KhronosGroup/${MY_PN}/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"

LICENSE="UoI-NCSA"
SLOT="10"
KEYWORDS="~amd64"
IUSE="test tools"

# I have yet to see a non-release spirv-llvm-translator ebuild pass ANY tests.
# This is probably something silly like the test suite expecting different
# directory names but I really can't be bothered to debug VCS snapshots.
RESTRICT="test"

S="${WORKDIR}/${MY_P}"

COMMON="sys-devel/clang:10=[${MULTILIB_USEDEP}]"
DEPEND="${COMMON}"
RDEPEND="${COMMON}"
BDEPEND="test? ( dev-python/lit )"

REQUIRED_USE="test? ( tools )"

LLVM_MAX_SLOT=10

PATCHES=(
	"${FILESDIR}"/${PN}-8.0.0.1-no_pkgconfig_files.patch
)

src_prepare() {
	append-flags -fPIC
	cmake_src_prepare
}

multilib_src_configure() {
	local mycmakeargs=(
		-DCMAKE_INSTALL_PREFIX="$(get_llvm_prefix ${LLVM_MAX_SLOT})"
		-DLLVM_BUILD_TOOLS=$(usex tools "ON" "OFF")
		$(usex test "-DLLVM_INCLUDE_TESTS=ON" "")
	)
	cmake_src_configure
}

multilib_src_test() {
	# Some tests fail on amd64 when ABI==x86
	if multilib_is_native_abi; then
		lit "${BUILD_DIR}/test" || die "Error running tests for ABI ${ABI}"
	fi
}