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# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{13..14} )
inherit cmake flag-o-matic llvm.org multilib-minimal python-any-r1
DESCRIPTION="Multi-Level Intermediate Representation (library only)"
HOMEPAGE="https://mlir.llvm.org/"
LICENSE="Apache-2.0-with-LLVM-exceptions"
SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
IUSE="+debug test"
RESTRICT="!test? ( test )"
DEPEND="
~llvm-core/llvm-${PV}[debug=,${MULTILIB_USEDEP}]
"
RDEPEND="
${DEPEND}
"
BDEPEND="
${PYTHON_DEPS}
llvm-core/llvm:${LLVM_MAJOR}
test? (
$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
)
"
LLVM_COMPONENTS=( mlir cmake )
# tablegen tests use *.td files there
LLVM_TEST_COMPONENTS=( llvm/include )
llvm.org_set_globals
python_check_deps() {
if use test; then
python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
fi
}
src_prepare() {
llvm.org_src_prepare
# https://github.com/llvm/llvm-project/issues/120902
sed -i -e '/LINK_LIBS/s:PUBLIC:PRIVATE:' \
lib/ExecutionEngine/CMakeLists.txt || die
# this test is completely unpredictable, no clue why
rm test/mlir-pdll-lsp-server/view-output.test || die
}
check_distribution_components() {
if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
local all_targets=() my_targets=() l
cd "${BUILD_DIR}" || die
while read -r l; do
if [[ ${l} == install-*-stripped:* ]]; then
l=${l#install-}
l=${l%%-stripped*}
case ${l} in
# meta-targets
mlir-libraries|distribution)
continue
;;
# dylib
MLIR)
;;
# installed test libraries
MLIRTestAliasAnalysis|MLIRTestAnalysis|MLIRTestDialect|MLIRTestIR)
;;
MLIROpenACCTestPasses)
;;
# static libraries
MLIR*)
continue
;;
esac
all_targets+=( "${l}" )
fi
done < <(${NINJA} -t targets all)
while read -r l; do
my_targets+=( "${l}" )
done < <(get_distribution_components $"\n")
local add=() remove=()
for l in "${all_targets[@]}"; do
if ! has "${l}" "${my_targets[@]}"; then
add+=( "${l}" )
fi
done
for l in "${my_targets[@]}"; do
if ! has "${l}" "${all_targets[@]}"; then
remove+=( "${l}" )
fi
done
if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
eerror "get_distribution_components() is outdated!"
eerror " Add: ${add[*]}"
eerror "Remove: ${remove[*]}"
die "Update get_distribution_components()!"
fi
cd - >/dev/null || die
fi
}
get_distribution_components() {
local sep=${1-;}
local out=(
mlir-cmake-exports
mlir-headers
# the dylib
MLIR
# shared libraries
mlir_apfloat_wrappers
mlir_arm_runner_utils
mlir_arm_sme_abi_stubs
mlir_async_runtime
mlir_c_runner_utils
mlir_float16_utils
mlir_runner_utils
# test libraries required by flang
MLIROpenACCTestPasses
MLIRTestAliasAnalysis
MLIRTestAnalysis
MLIRTestDialect
MLIRTestIR
)
if multilib_is_native_abi; then
out+=(
# tools
mlir-irdl-to-cpp
mlir-linalg-ods-yaml-gen
mlir-lsp-server
mlir-opt
mlir-pdll
mlir-pdll-lsp-server
mlir-query
mlir-reduce
mlir-rewrite
mlir-runner
mlir-src-sharder
mlir-tblgen
mlir-translate
tblgen-lsp-server
tblgen-to-irdl
)
fi
printf "%s${sep}" "${out[@]}"
}
multilib_src_configure() {
# bug #956603
filter-lto
local mycmakeargs=(
-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
-DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"
-DBUILD_SHARED_LIBS=OFF
# this controls building libMLIR.so
-DLLVM_BUILD_LLVM_DYLIB=ON
-DMLIR_BUILD_MLIR_C_DYLIB=OFF
-DMLIR_LINK_MLIR_DYLIB=ON
-DMLIR_INCLUDE_TESTS=ON
-DMLIR_INCLUDE_INTEGRATION_TESTS=OFF
-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
# this enables installing mlir-tblgen and mlir-pdll
-DLLVM_BUILD_UTILS=ON
-DPython3_EXECUTABLE="${PYTHON}"
-DLLVM_BUILD_TOOLS=ON
# TODO
-DMLIR_ENABLE_CUDA_RUNNER=0
-DMLIR_ENABLE_ROCM_RUNNER=0
-DMLIR_ENABLE_SYCL_RUNNER=0
-DMLIR_ENABLE_SPIRV_CPU_RUNNER=0
-DMLIR_ENABLE_VULKAN_RUNNER=0
-DMLIR_ENABLE_BINDINGS_PYTHON=0
-DMLIR_INSTALL_AGGREGATE_OBJECTS=OFF
)
use test && mycmakeargs+=(
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="$(get_lit_flags)"
)
# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
cmake_src_configure
multilib_is_native_abi && check_distribution_components
}
multilib_src_compile() {
cmake_build distribution
}
multilib_src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
cmake_build check-mlir
}
multilib_src_install() {
DESTDIR=${D} cmake_build install-distribution
}
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