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# Copyright 2022-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8
inherit cmake

CommitId=51a987591a6fc9f0fc0707077f53d763ac132cbf

DESCRIPTION="library of floating-point neural network inference operators"
HOMEPAGE="https://github.com/google/XNNPACK/"
SRC_URI="https://github.com/google/${PN}/archive/${CommitId}.tar.gz
	-> ${P}.tar.gz"

LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64"
IUSE="+assembly jit +memopt +sparse static-libs test"

RDEPEND="
	dev-libs/cpuinfo
	dev-libs/pthreadpool
"
DEPEND="${RDEPEND}
	dev-libs/FP16
	dev-libs/FXdiv
"

BDEPEND="test? ( dev-cpp/gtest )"
RESTRICT="!test? ( test )"
REQUIRED_USE="test? ( static-libs )"

S="${WORKDIR}"/${PN}-${CommitId}

PATCHES=(
	"${FILESDIR}"/${PN}-2022.02.17-gentoo.patch
)

src_prepare() {
	sed -i \
		-e "/PRIVATE fp16)/d" \
		-e "/PRIVATE fxdiv)/d" \
		-e "/PRIVATE clog)/d" \
		-e "/TARGET_LINK_LIBRARIES/s: fp16::" \
		CMakeLists.txt \
		|| die
	dropTest=(
		"add-nd-test"
		"subtract-nd-test"
		"f32-velu-test"
		"qc8-dwconv-minmax-fp32-test"
		"qs8-dwconv-minmax-fp32-test"
		"qs8-vadd-minmax-test"
		"qs8-vaddc-minmax-test"
		"qu8-dwconv-minmax-fp32-test"
		"qu8-vadd-minmax-test"
		"qu8-vaddc-minmax-test"
	)
	for id in ${dropTest[@]}
	do
		sed -i \
			-e "/ADD_TEST(${id}/d" \
			CMakeLists.txt \
			|| die
	done

	cmake_src_prepare
}

src_configure() {
	local mycmakeargs=(
		-DXNNPACK_BUILD_BENCHMARKS=OFF
		-DXNNPACK_USE_SYSTEM_LIBS=ON
		-DXNNPACK_BUILD_TESTS=$(usex test ON OFF)
		-DXNNPACK_LIBRARY_TYPE=$(usex static-libs static shared)
		-DXNNPACK_ENABLE_ASSEMBLY=$(usex assembly ON OFF)
		-DXNNPACK_ENABLE_JIT=$(usex jit ON OFF)
		-DXNNPACK_ENABLE_MEMOPT=$(usex memopt ON OFF)
		-DXNNPACK_ENABLE_SPARSE=$(usex sparse ON OFF)
		-DCMAKE_POSITION_INDEPENDENT_CODE=ON
	)

	cmake_src_configure
	cd "${BUILD_DIR}"
}