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# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

DOCS_BUILDER="doxygen"
DOCS_DIR="docs/doxygen"
DOCS_DEPEND="media-gfx/graphviz"
LLVM_COMPAT=( 20 )
ROCM_VERSION=${PV}

inherit cmake docs edo flag-o-matic multiprocessing rocm llvm-r1

DESCRIPTION="AMD's library for BLAS on ROCm"
HOMEPAGE="https://github.com/ROCm/rocBLAS"
SRC_URI="https://github.com/ROCm/rocBLAS/archive/rocm-${PV}.tar.gz -> rocm-${P}.tar.gz"
S="${WORKDIR}/${PN}-rocm-${PV}"

LICENSE="BSD"
SLOT="0/$(ver_cut 1-2)"
KEYWORDS="~amd64"
IUSE="benchmark hipblaslt test video_cards_amdgpu"
RESTRICT="!test? ( test )"
REQUIRED_USE="${ROCM_REQUIRED_USE}"

BDEPEND="
	>=dev-build/rocm-cmake-5.3
"

RDEPEND="
	dev-util/hip:${SLOT}
	dev-util/roctracer:${SLOT}
	hipblaslt? ( sci-libs/hipBLASLt:${SLOT} )
	benchmark? (
		virtual/blas
		dev-cpp/gtest
		llvm-runtimes/openmp
	)
"

DEPEND="
	${RDEPEND}
	>=dev-cpp/msgpack-cxx-6.0.0
	test? (
		virtual/blas
		dev-cpp/gtest
		llvm-runtimes/openmp
	)
	video_cards_amdgpu? (
		dev-util/Tensile:${SLOT}
	)
"

QA_FLAGS_IGNORED="/usr/lib64/rocblas/library/.*"

PATCHES=(
	"${FILESDIR}"/${PN}-5.4.2-add-missing-header.patch
	"${FILESDIR}"/${PN}-5.4.2-link-cblas.patch
	"${FILESDIR}"/${PN}-6.0.2-expand-isa-compatibility.patch
	"${FILESDIR}"/${PN}-6.3.0-no-git.patch
	"${FILESDIR}"/${PN}-6.3.0-find-cblas.patch
)

src_prepare() {
	cmake_src_prepare
	sed -e "s:,-rpath=.*\":\":" -i clients/CMakeLists.txt || die
}

src_configure() {
	llvm_prepend_path "${LLVM_SLOT}"
	rocm_use_clang

	# too many warnings
	append-cxxflags -Wno-explicit-specialization-storage-class -Wno-unused-value

	local mycmakeargs=(
		-DCMAKE_SKIP_RPATH=ON
		-DBUILD_FILE_REORG_BACKWARD_COMPATIBILITY=OFF
		-DROCM_SYMLINK_LIBS=OFF
		-DAMDGPU_TARGETS="$(get_amdgpu_flags)"
		-DBUILD_WITH_TENSILE="$(usex video_cards_amdgpu)"
		-DCMAKE_INSTALL_INCLUDEDIR="include/rocblas"
		-DBUILD_CLIENTS_SAMPLES=OFF
		-DBUILD_CLIENTS_TESTS="$(usex test ON OFF)"
		-DBUILD_CLIENTS_BENCHMARKS="$(usex benchmark ON OFF)"
		-DBUILD_WITH_PIP=OFF
		-DBUILD_WITH_HIPBLASLT="$(usex hipblaslt ON OFF)"
		-DLINK_BLIS=OFF
		-DTensile_CPU_THREADS=$(makeopts_jobs)
		-Wno-dev
	)

	if usex video_cards_amdgpu; then
		mycmakeargs+=(
			-DTensile_COMPILER="hipcc"
			-DTensile_ROOT="${EPREFIX}/usr/share/Tensile"
			-DTensile_CPU_THREADS="$(makeopts_jobs)"
		)
	fi

	cmake_src_configure
}

src_compile() {
	docs_compile
	cmake_src_compile
}

src_test() {
	check_amdgpu
	cd "${BUILD_DIR}"/clients/staging || die
	export ROCBLAS_TEST_TIMEOUT=3600 ROCBLAS_TENSILE_LIBPATH="${BUILD_DIR}/Tensile/library"
	export LD_LIBRARY_PATH="${BUILD_DIR}/clients:${BUILD_DIR}/library/src"

	# `--gtest_filter=*quick*:*pre_checkin*-*known_bug*` is >1h on 7900XTX
	edob ./rocblas-test --yaml rocblas_smoke.yaml
}

src_install() {
	cmake_src_install

	if use benchmark; then
		cd "${BUILD_DIR}" || die
		dolib.a clients/librocblas_fortran_client.a
		dobin clients/staging/rocblas-bench
	fi

	# Stop llvm-strip from removing .strtab section from *.hsaco files,
	# otherwise rocclr/elf/elf.cpp complains with "failed: null sections(STRTAB)" and crashes
	dostrip -x "/usr/$(get_libdir)/rocblas/library/"
}