sys-libs/libomp: Bump to 12.0.0-rc1

Signed-off-by: Michał Górny <mgorny@gentoo.org>

sys-libs/libomp/Manifest

@@ -3,4 +3,5 @@ DIST llvmorg-11.0.0.tar.gz 122743665 BLAKE2B 3f95570240789fd68ddb747df817f5c6cdc
 DIST llvmorg-11.0.1.tar.gz 122790338 BLAKE2B 0130996b4a8c4d9f757136fd7fb318068c9bfdc565060dec0d4336480c4ab66c4ae3185a7fdb05f13cf9ee8fd4123b09df938881b75d6e5d3689595114b7e32a SHA512 f5e6ef0b3111aae08a89cd01adb2ff4abfa9ef779c68b9190421d0447efd25c2cc00e5aae9f4764805f5fa31434866043d1510ae7389817e28ae53a5442e2fdf
 DIST llvmorg-11.1.0-rc1.tar.gz 122793491 BLAKE2B f4777455f5903cffea284eaffd872be6c287c6c1ebbd0c4b5b5473f146d7f5476f3551998a58d3e976ab90cde7b0d05db2b3be97f4e8e2c3474755ff38739268 SHA512 44e281486c44fa1611042ab658b9833a75f9613b7f896863613cfb99de66d13607fb1e9064f42ea3d89ca7951113465a90fd96ca4544262f165f78bd5261f5a8
 DIST llvmorg-11.1.0-rc2.tar.gz 122794772 BLAKE2B ab533f078d9d6c37e27c578866a07896344a0b4cf4ebf6402f4fa490213e017310d1c882bf63e552e99a5b4f6d1d8c01413420713b200bfa6732eff64f3c47a9 SHA512 88d8f1d938f0ba7ec39478d03a35c09a30bea51735276205494265b1061621b3ebcda8ee4211e896783b1b99a377c9fa68046118b0d6cb7fcb7bea1e960f95b7
+DIST llvmorg-12.0.0-rc1.tar.gz 134164708 BLAKE2B d4261ff7d9586b47f4cfda3d2cda4b76534f9e17fbd5cdb8861895b8eb466021962f4608bfcdeb52f8fce78850a994fd5eda0560f7211e5c8d1ac9330a738a36 SHA512 3d07d013d0705bb99f56898cc55d054d0d95aeb53b3c756cfab80b4c9097cc4935bcea89b9efde2e503a899b9fccf0dacc0073c9991c8ea352755c5ec68a757a
 DIST llvmorg-9.0.1.tar.gz 113193320 BLAKE2B b86e405f2b8e00436045fd409fe19cdde75c797b1192c62a22b5ec75e6b4dc8e874a0f33008dc31562445e4cbe53a992b6f48c684255a6a1ef261e595b8b161f SHA512 fa88beeaae94b6d0cd9b5ba38658d0ffed8004035d7d8a4f95c3d31a709b88b581ae9bd7761333c8e5375c44b8f6be01768b5a3be901163159d7e6c43b71da59

sys-libs/libomp/libomp-12.0.0_rc1.ebuild

@@ -0,0 +1,105 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{6..9} )
+inherit cmake-multilib linux-info llvm.org python-any-r1
+
+DESCRIPTION="OpenMP runtime library for LLVM/clang compiler"
+HOMEPAGE="https://openmp.llvm.org"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="cuda hwloc kernel_linux offload ompt test"
+# CUDA works only with the x86_64 ABI
+REQUIRED_USE="offload? ( cuda? ( abi_x86_64 ) )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	hwloc? ( sys-apps/hwloc:0=[${MULTILIB_USEDEP}] )
+	offload? (
+		virtual/libelf:=[${MULTILIB_USEDEP}]
+		dev-libs/libffi:=[${MULTILIB_USEDEP}]
+		cuda? ( dev-util/nvidia-cuda-toolkit:= )
+	)"
+# tests:
+# - dev-python/lit provides the test runner
+# - sys-devel/llvm provide test utils (e.g. FileCheck)
+# - sys-devel/clang provides the compiler to run tests
+DEPEND="${RDEPEND}"
+BDEPEND="dev-lang/perl
+	offload? ( virtual/pkgconfig )
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+		>=sys-devel/clang-6
+	)"
+
+LLVM_COMPONENTS=( openmp llvm/include )
+llvm.org_set_globals
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+kernel_pds_check() {
+	if use kernel_linux && kernel_is -lt 4 15 && kernel_is -ge 4 13; then
+		local CONFIG_CHECK="~!SCHED_PDS"
+		local ERROR_SCHED_PDS="\
+PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels >= 4.13-pf11
+< 4.14-pf9) do not implement sched_yield() call which may result in horrible
+performance problems with libomp. If you are using one of the specified
+kernel versions, you may want to disable the PDS scheduler."
+
+		check_extra_config
+	fi
+}
+
+pkg_pretend() {
+	kernel_pds_check
+}
+
+pkg_setup() {
+	use test && python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	local libdir="$(get_libdir)"
+	local mycmakeargs=(
+		-DOPENMP_LIBDIR_SUFFIX="${libdir#lib}"
+
+		-DLIBOMP_USE_HWLOC=$(usex hwloc)
+		-DLIBOMP_OMPT_SUPPORT=$(usex ompt)
+
+		-DOPENMP_ENABLE_LIBOMPTARGET=$(usex offload)
+
+		# do not install libgomp.so & libiomp5.so aliases
+		-DLIBOMP_INSTALL_ALIASES=OFF
+		# disable unnecessary hack copying stuff back to srcdir
+		-DLIBOMP_COPY_EXPORTS=OFF
+	)
+	use offload && mycmakeargs+=(
+		# this is non-fatal and libomp checks for CUDA conditionally
+		# to ABI, so we can just ignore passing the wrong value
+		# on non-amd64 ABIs
+		-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=$(usex !cuda)
+	)
+	use test && mycmakeargs+=(
+		# this project does not use standard LLVM cmake macros
+		-DOPENMP_LLVM_LIT_EXECUTABLE="${EPREFIX}/usr/bin/lit"
+		-DOPENMP_LIT_ARGS="$(get_lit_flags)"
+
+		-DOPENMP_TEST_C_COMPILER="$(type -P "${CHOST}-clang")"
+		-DOPENMP_TEST_CXX_COMPILER="$(type -P "${CHOST}-clang++")"
+	)
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+
+	cmake_build check-libomp
+}