# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

ROCM_VERSION=${PV}

inherit cmake edo flag-o-matic rocm

DESCRIPTION="Implementation of a subset of LAPACK functionality on the ROCm platform"
HOMEPAGE="https://github.com/ROCm/rocm-libraries/tree/develop/projects/rocsolver"

# ROCm 10 ships rocSOLVER from rocm-libraries release assets, not standalone
# repository tags. verified 2026-08-30
SRC_URI="https://github.com/ROCm/rocm-libraries/releases/download/therock-$(ver_cut 1-2)/rocsolver.tar.gz -> rocsolver-${PV}.tar.gz"
S="${WORKDIR}/rocsolver"

LICENSE="BSD-2 BSD"
SLOT="0/$(ver_cut 1-2)"
KEYWORDS="~amd64"

IUSE="benchmark sparse test"
REQUIRED_USE="${ROCM_REQUIRED_USE}"

RDEPEND="
	dev-util/hip:${SLOT}
	sci-libs/rocBLAS:${SLOT}
	benchmark? ( sci-libs/flexiblas )
	sparse? ( sci-libs/rocSPARSE:${SLOT} )
"
DEPEND="
	${RDEPEND}
	dev-libs/libfmt:=
	sci-libs/rocPRIM:${SLOT}
"
BDEPEND="
	test? (
		dev-cpp/gtest
		sci-libs/flexiblas
	)
"

RESTRICT="!test? ( test )"

src_configure() {
	rocm_use_clang

	append-cxxflags -Wno-explicit-specialization-storage-class

	local mycmakeargs=(
		-DCMAKE_SKIP_RPATH=ON
		-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
		-DROCM_SYMLINK_LIBS=OFF
		-DBUILD_CLIENTS_SAMPLES=OFF
		-DBUILD_CLIENTS_TESTS=$(usex test ON OFF)
		-DBUILD_CLIENTS_BENCHMARKS=$(usex benchmark ON OFF)
		-DBUILD_WITH_SPARSE=$(usex sparse ON OFF)
		-Wno-dev
	)

	if use benchmark || use test; then
		mycmakeargs+=(
			-DROCSOLVER_FIND_PACKAGE_LAPACK_CONFIG=OFF
			-DBLA_PKGCONFIG_BLAS=ON
			-DBLA_VENDOR=FlexiBLAS
		)
	fi

	cmake_src_configure
}

src_test() {
	check_amdgpu
	cd "${BUILD_DIR}"/clients/staging || die
	# gfx1100: 64m28s full; 1m35s for checkin minus known bugs.
	HIP_VISIBLE_DEVICES=0 LD_LIBRARY_PATH="${BUILD_DIR}/library/src" \
		edob ./rocsolver-test \
		--gtest_filter='checkin*-*known_bug*:*GVD*batched*:*STEDCX*/74:*BDSVDX*:*SYGVDX_INPLACE.__float*'
}

src_install() {
	cmake_src_install

	if use benchmark; then
		cd "${BUILD_DIR}" || die
		dobin clients/staging/rocsolver-bench
	fi
}