diff --git a/dev-lang/ispc/Manifest b/dev-lang/ispc/Manifest
index baf634df3bd27..a82ddca61f380 100644
--- a/dev-lang/ispc/Manifest
+++ b/dev-lang/ispc/Manifest
@@ -1 +1,2 @@
 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-1.26.0.ebuild b/dev-lang/ispc/ispc-1.26.0.ebuild
new file mode 100644
index 0000000000000..907a6ee9849a3
--- /dev/null
+++ b/dev-lang/ispc/ispc-1.26.0.ebuild
@@ -0,0 +1,95 @@
+# Copyright 1999-2025 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
+}