diff --git a/dev-lang/ispc/Manifest b/dev-lang/ispc/Manifest
index a82ddca61f380..7cc745836a4b9 100644
--- a/dev-lang/ispc/Manifest
+++ b/dev-lang/ispc/Manifest
@@ -1,2 +1 @@
-DIST ispc-1.25.3.gh.tar.gz 19805596 BLAKE2B 6e98d2297b2b9b7da32c74328c0b3883a7bd7dc997624ed5c5eff1193779b28a29b6e505ec09f6ba471f0b3ba4b3c603561717311a370bad5350d7e898b9d5f1 SHA512 12bbf7b15d6ec97658d46d65d1c02103bdada4101dcaa2ebb5c8477c39934a588d1035371ae09636c0fa73267f4d714579b8fffcd8690d4f3d95eb12436908ab
 DIST ispc-1.26.0.gh.tar.gz 19849065 BLAKE2B db4f287dc0e2a6292875223dfe7b799cdd020384d505b60c13811b782bafd564a2adde4a5d1ca222efac77bfa218670af57dbd129e0d47db001b2c71e5f9aa61 SHA512 bb24cab35d3463b181da2b47ebf6c0836e82a5daff18b2edfccb0d83a066d2c70c30038391b4bcade5e3177bd004068c9ae8c523f09dcecb94d02a8b9e38a2c9
diff --git a/dev-lang/ispc/ispc-1.25.3.ebuild b/dev-lang/ispc/ispc-1.25.3.ebuild
deleted file mode 100644
index 4ead5bc633528..0000000000000
--- a/dev-lang/ispc/ispc-1.25.3.ebuild
+++ /dev/null
@@ -1,95 +0,0 @@
-# Copyright 1999-2024 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-LLVM_COMPAT=( {17..19} )
-PYTHON_COMPAT=( python3_{10..13} )
-
-inherit cmake llvm-r1 multiprocessing python-any-r1 toolchain-funcs
-
-DESCRIPTION="Intel SPMD Program Compiler"
-HOMEPAGE="
-	https://ispc.github.io/
-	https://github.com/ispc/ispc/
-"
-SRC_URI="
-	https://github.com/ispc/ispc/archive/v${PV}.tar.gz
-		-> ${P}.gh.tar.gz
-"
-
-LICENSE="BSD BSD-2 UoI-NCSA"
-SLOT="0"
-KEYWORDS="amd64 ~arm ~arm64 ~ppc64 ~x86"
-IUSE="examples gpu openmp test"
-RESTRICT="!test? ( test )"
-
-DEPEND="
-	$(llvm_gen_dep '
-		llvm-core/clang:${LLVM_SLOT}
-	')
-	sys-libs/ncurses:=
-	gpu? ( dev-libs/level-zero:= )
-	!openmp? ( dev-cpp/tbb:= )
-"
-RDEPEND="
-	${DEPEND}
-"
-BDEPEND="
-	app-alternatives/yacc
-	app-alternatives/lex
-	${PYTHON_DEPS}
-"
-
-pkg_pretend() {
-	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
-}
-
-pkg_setup() {
-	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
-	llvm-r1_pkg_setup
-	python-any-r1_pkg_setup
-}
-
-src_prepare() {
-	# do not require bundled gtest
-	mkdir -p ispcrt/tests/vendor/google/googletest || die
-	cat > ispcrt/tests/vendor/google/googletest/CMakeLists.txt <<-EOF || die
-		find_package(GTest)
-	EOF
-	# remove hacks that break unbundling
-	sed -i -e '/gmock/d' -e '/install/,$d' ispcrt/tests/CMakeLists.txt || die
-
-	cmake_src_prepare
-}
-
-src_configure() {
-	local mycmakeargs=(
-		-DARM_ENABLED=$(usex arm)
-		-DCMAKE_SKIP_RPATH=ON
-		-DISPC_INCLUDE_EXAMPLES=OFF
-		-DISPC_INCLUDE_TESTS=$(usex test)
-		-DISPC_INCLUDE_UTILS=OFF
-		-DISPCRT_BUILD_GPU=$(usex gpu)
-		-DISPCRT_BUILD_TASK_MODEL=$(usex openmp OpenMP TBB)
-		# prevent it from trying to find the git repo
-		-DGIT_BINARY=GIT_BINARY-NOTFOUND
-	)
-	cmake_src_configure
-}
-
-src_test() {
-	# Inject path to prevent using system ispc
-	local -x PATH="${BUILD_DIR}/bin:${PATH}"
-	"${EPYTHON}" ./scripts/run_tests.py "-j$(makeopts_jobs)" -v ||
-		die "Testing failed under ${EPYTHON}"
-}
-
-src_install() {
-	cmake_src_install
-
-	if use examples; then
-		docompress -x /usr/share/doc/${PF}/examples
-		dodoc -r examples
-	fi
-}