diff --git a/dev-util/lldb/Manifest b/dev-util/lldb/Manifest
index 4dffa5854a78c..fc21c34e65b64 100644
--- a/dev-util/lldb/Manifest
+++ b/dev-util/lldb/Manifest
@@ -1,4 +1,6 @@
 DIST lldb-7.0.1.src.tar.xz 19384628 BLAKE2B 4720aa85afb90b84264f53736ca8a225bfc807cd84271f8be35a06437e718fb40a0f5090f213e203ffb746b254583f59e912d00300635e78f43aeb75a8dc4048 SHA512 7e98c3148ac34b42404e5aaaff91728d19e9062110a333f0bc7a62ec324fbb6d033ea44b56e144dc1e94febb2107cfb33c71bb3602c2168a6270dd807a2cc5ff
 DIST lldb-8.0.0rc2.src.tar.xz 19603496 BLAKE2B e13ae6c20a34e0b77729abfd1c6108b213fcfbd31674b52e42d21ee3b9db334a1c4e772e787cb7ac3f3695078d3ea37b7d6f464bf575460dada59356131c8460 SHA512 5cc3687999356c6b17fe8eaea9187e2b7e275a641aefa3e94a45d6016df67fdfd2c25a77e225516496503074284be2ccfbca0d43912e8b5a9f5f72d231f85261
+DIST lldb-8.0.0rc3.src.tar.xz 19605220 BLAKE2B 20cc9bf0680162628d7d09d3589151255fac74eac5be0b99bad2b6a810bc77f12403a7d9b7ae420c918643966271aaa49a13435e5668b6ce5be7525356361bd8 SHA512 abda094092fc40d83ea98a2cb19aeb3f5a51ffbeb810e8aaebf3eac9c7be84f0123bf5397d7ac74109b8aa45d589e4e38646efe1817bdb6272bd957ba7a92cd2
 DIST llvm-7.0.1.src.tar.xz 28311056 BLAKE2B 737aa6144a415e41a4ff2c8bd5a727d6f14d7b1810c62cbefa5a25fe642c98cddf8a28e35c7e9783373aa3b96f5c0943229e229ad1b43e56e9ed6db0f27ab128 SHA512 ac43a3cb71a53deb55e3693653847cf20bf6f5d9056f224e6956c96d63bc59ebee9404f088eec9cabe65337b4607a905ef931354b373cf64e0004c6905a6b5df
 DIST llvm-8.0.0rc2.src.tar.xz 30492444 BLAKE2B e7afd3b66e3eb204e07348f0bc77f0ae03d8e9581de4c94cba7c0b43b53f36ecd891c1272ce43ea6c78999fd404a7db105266a2eaca22975133571e1152961af SHA512 9d93197848e9472cc2fef2477897e4f4d74a79b17a164fd43446b0ffb327e7f484cf64f0c294d9a99707c0b46282eb0d16e6ceb5d2d568f25e4235f70ae3c5e7
+DIST llvm-8.0.0rc3.src.tar.xz 30507604 BLAKE2B c9baaca537d292af9f12368df86090750508113eb7db393fe44c1ba7579df947f0a7092e6ddd4403bda9f9ed75fe8c049f3baf6d8671faa0c91e3267c584893a SHA512 82199841c2084cffe4e86b4f2d5ebe404059196f1f6d000ee69cfddba05d78c4500ad7499615fa67e9774ead6cba5a23db484dd85f752c8d08e8067f7d7b98ca
diff --git a/dev-util/lldb/lldb-8.0.0_rc3.ebuild b/dev-util/lldb/lldb-8.0.0_rc3.ebuild
new file mode 100644
index 0000000000000..cab280bed822c
--- /dev/null
+++ b/dev-util/lldb/lldb-8.0.0_rc3.ebuild
@@ -0,0 +1,118 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-utils llvm multiprocessing python-single-r1 \
+	toolchain-funcs
+
+MY_P=${P/_/}.src
+LLVM_P=llvm-${PV/_/}.src
+
+DESCRIPTION="The LLVM debugger"
+HOMEPAGE="https://llvm.org/"
+SRC_URI="https://prereleases.llvm.org/${PV/_//}/${MY_P}.tar.xz
+	test? ( https://prereleases.llvm.org/${PV/_//}/${LLVM_P}.tar.xz )"
+
+LICENSE="UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="libedit ncurses python test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	libedit? ( dev-libs/libedit:0= )
+	ncurses? ( >=sys-libs/ncurses-5.9-r3:0= )
+	python? ( dev-python/six[${PYTHON_USEDEP}]
+		${PYTHON_DEPS} )
+	~sys-devel/clang-${PV}[xml]
+	~sys-devel/llvm-${PV}
+	!<sys-devel/llvm-4.0"
+DEPEND="${RDEPEND}
+	python? ( >=dev-lang/swig-3.0.11 )
+	test? ( ~dev-python/lit-${PV}[${PYTHON_USEDEP}] )
+	${PYTHON_DEPS}"
+
+REQUIRED_USE=${PYTHON_REQUIRED_USE}
+
+S=${WORKDIR}/${MY_P}
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${PV%%.*} llvm_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	einfo "Unpacking ${MY_P}.tar.xz ..."
+	tar -xf "${DISTDIR}/${MY_P}.tar.xz" || die
+
+	if use test; then
+		einfo "Unpacking parts of ${LLVM_P}.tar.xz ..."
+		tar -xf "${DISTDIR}/${LLVM_P}.tar.xz" \
+			"${LLVM_P}"/{lib/Testing/Support,utils/unittest} || die
+		mv "${LLVM_P}" llvm || die
+	fi
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DLLDB_DISABLE_CURSES=$(usex !ncurses)
+		-DLLDB_DISABLE_LIBEDIT=$(usex !libedit)
+		-DLLDB_DISABLE_PYTHON=$(usex !python)
+		-DLLDB_USE_SYSTEM_SIX=1
+		-DLLVM_ENABLE_TERMINFO=$(usex ncurses)
+
+		-DLLDB_INCLUDE_TESTS=$(usex test)
+
+		# TODO: fix upstream to detect this properly
+		-DHAVE_LIBDL=ON
+		-DHAVE_LIBPTHREAD=ON
+
+		# normally we'd have to set LLVM_ENABLE_TERMINFO, HAVE_TERMINFO
+		# and TERMINFO_LIBS... so just force FindCurses.cmake to use
+		# ncurses with complete library set (including autodetection
+		# of -ltinfo)
+		-DCURSES_NEED_NCURSES=ON
+	)
+	use test && mycmakeargs+=(
+		-DLLVM_BUILD_TESTS=$(usex test)
+		# compilers for lit tests
+		-DLLDB_TEST_C_COMPILER="$(type -P clang)"
+		-DLLDB_TEST_CXX_COMPILER="$(type -P clang++)"
+
+		-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+		-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+		-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
+	)
+
+	cmake-utils_src_configure
+}
+
+src_test() {
+	cmake-utils_src_make check-lldb-lit
+	use python && cmake-utils_src_make check-lldb
+}
+
+src_install() {
+	cmake-utils_src_install
+
+	# oh my...
+	if use python; then
+		# remove custom readline.so for now
+		# TODO: figure out how to deal with it
+		# upstream is basically building a custom readline.so with -ledit
+		# to avoid symbol collisions between readline and libedit...
+		rm "${D}$(python_get_sitedir)/readline.so" || die
+
+		# byte-compile the modules
+		python_optimize
+	fi
+}