dev-libs/pocl: add 4.0

Closes: https://bugs.gentoo.org/912675
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 113 insertions, 0 deletions

diff --git a/dev-libs/pocl/Manifest b/dev-libs/pocl/Manifest
index 014e89f51635..71518dab3615 100644
--- a/dev-libs/pocl/Manifest
+++ b/dev-libs/pocl/Manifest
@@ -1 +1,2 @@
 DIST pocl-3.1.tar.gz 1928607 BLAKE2B 7044a96e361426408fabd973987a0d6956693e3c9095769ee94d7dac47a8841d7489933e94acd22451a1c8a2ca83cb8e6948aebe899b23a8a6080ef1b7b37e9c SHA512 40d17e81d715f6897aa1d97fd02834d45227d9d0bd4c70e76d727f9ad4df675c25b7158a862e20e63810182fdad82a3cb1e454668c3a6422a977e59c8325fa0c
+DIST pocl-4.0.tar.gz 2140919 BLAKE2B 1e9dd4de4824dd4a9e2b0d053d1786062c135d3bf7ca99dc884657b89c651fca6c0f3dedb568439802a58b0bfabc10939ca344b0110ae5fdb31be06f596d2a48 SHA512 3835a9e8fc8562d50a91a11b807cf87a096891f5c27675127b66412eacff2e541b6143b49b4155f43a09f4e53faa062ec20f3b20badeca206ece9f45ad50f26a
diff --git a/dev-libs/pocl/pocl-4.0.ebuild b/dev-libs/pocl/pocl-4.0.ebuild
new file mode 100644
index 000000000000..cce413824dc1
--- /dev/null
+++ b/dev-libs/pocl/pocl-4.0.ebuild
@@ -0,0 +1,112 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LLVM_MAX_SLOT=16
+inherit cmake llvm
+
+DESCRIPTION="Portable Computing Language (an implementation of OpenCL)"
+HOMEPAGE="http://portablecl.org https://github.com/pocl/pocl"
+SRC_URI="https://github.com/pocl/pocl/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc64"
+# TODO: hsa tce
+IUSE="accel +conformance cuda debug examples float-conversion hardening +hwloc memmanager lto test"
+# Tests not yet passing, fragile in Portage environment(?)
+RESTRICT="!test? ( test ) test"
+
+# TODO: add dependencies for cuda
+# Note: No := on LLVM because it pulls in Clang
+# see llvm.eclass for why
+CLANG_DEPS="
+	!cuda? ( <sys-devel/clang-$((${LLVM_MAX_SLOT} + 1)):= )
+	cuda? ( <sys-devel/clang-$((${LLVM_MAX_SLOT} + 1)):=[llvm_targets_NVPTX] )
+"
+RDEPEND="
+	dev-libs/libltdl
+	<sys-devel/llvm-$((${LLVM_MAX_SLOT} + 1)):*
+	virtual/opencl
+
+	${CLANG_DEPS}
+	debug? ( dev-util/lttng-ust:= )
+	hwloc? ( sys-apps/hwloc:=[cuda?] )
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	${CLANG_DEPS}
+	virtual/pkgconfig
+"
+
+llvm_check_deps() {
+	local usedep=$(usev cuda "[llvm_targets_NVPTX]")
+
+	# Clang is used at both build time (executed) and runtime
+	has_version -r "sys-devel/llvm:${LLVM_SLOT}${usedep}" && \
+		has_version -r "sys-devel/clang:${LLVM_SLOT}${usedep}" && \
+		has_version -b "sys-devel/clang:${LLVM_SLOT}${usedep}"
+}
+
+src_configure() {
+	local host_cpu_variants="generic"
+
+	if use amd64 ; then
+		# Use pocl's curated list of CPU variants which should contain a good match for any given amd64 CPU
+		host_cpu_variants="distro"
+	elif use ppc64 ; then
+		# A selection of architectures in which new Altivec / VSX features were added
+		# This attempts to recreate the amd64 "distro" option for ppc64
+		# See discussion in bug #831859
+		host_cpu_variants="pwr10;pwr9;pwr8;pwr7;pwr6;g5;a2;generic"
+	fi
+
+	local mycmakeargs=(
+		-DENABLE_HSA=OFF
+
+		-DENABLE_ICD=ON
+		-DPOCL_ICD_ABSOLUTE_PATH=ON
+		-DPOCL_INSTALL_PUBLIC_LIBDIR="${EPREFIX}/usr/$(get_libdir)/OpenCL/vendors/pocl"
+
+		-DENABLE_IPO=$(usex lto)
+
+		-DENABLE_POCL_BUILDING=ON
+		-DKERNELLIB_HOST_CPU_VARIANTS="${host_cpu_variants}"
+
+		-DSTATIC_LLVM=OFF
+		-DWITH_LLVM_CONFIG=$(get_llvm_prefix -d "${LLVM_MAX_SLOT}")/bin/llvm-config
+
+		-DENABLE_ALMAIF_DEVICE=$(usex accel)
+		-DENABLE_CONFORMANCE=$(usex conformance)
+		-DENABLE_CUDA=$(usex cuda)
+		-DENABLE_HWLOC=$(usex hwloc)
+		-DENABLE_POCL_FLOAT_CONVERSION=$(usex float-conversion)
+		-DHARDENING_ENABLE=$(usex hardening)
+		-DPOCL_DEBUG_MESSAGES=$(usex debug)
+		-DUSE_POCL_MEMMANAGER=$(usex memmanager)
+		-DENABLE_TESTS=$(usex test)
+	)
+
+	cmake_src_configure
+}
+
+src_test() {
+	export POCL_BUILDING=1
+	export POCL_DEVICES=basic
+	export CTEST_OUTPUT_ON_FAILURE=1
+	export TEST_VERBOSE=1
+
+	# Referenced https://github.com/pocl/pocl/blob/master/.drone.yml
+	# But couldn't seem to get tests working yet
+	cmake_src_test
+}
+
+src_install() {
+	cmake_src_install
+
+	if use examples; then
+		dodoc -r examples
+		docompress -x /usr/share/doc/${P}/examples
+	fi
+}