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[Cortex-M] Update CMSIS-NN to v8.0.0 #22719

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Merged
rascani merged 3 commits into from
Sep 14, 2026
Merged

[Cortex-M] Update CMSIS-NN to v8.0.0 #22719

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47ff0b0
[Cortex-M] Update CMSIS-NN to v8.0.0
rascani Sep 10, 2026
d88ff08
Cortex-M: honor the CMSIS-NN pin in Arm runner builds
rascani Sep 14, 2026
2285071
Arduino: accept CMSIS-NN release tags from the backend pin
rascani Sep 14, 2026
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2 changes: 1 addition & 1 deletion backends/arm/cmsis_pack/config/executorch_config.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ dependencies:
- pack: ARM::CMSIS
version: "6.0.0:6.99.99"
- pack: ARM::CMSIS-NN
version: "7.0.0:7.99.99"
version: "8.0.0:8.99.99"
optional: true # Only for CMSIS-NN optimized backend
- pack: ARM::ethos-u-core-driver
version: "1.0.0:1.99.99"
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2 changes: 1 addition & 1 deletion backends/arm/cmsis_pack/test/smoke/smoke.csolution.yml
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Expand Up @@ -10,7 +10,7 @@ solution:

packs:
- pack: ARM::CMSIS@>=6.0.0
- pack: ARM::CMSIS-NN@7.0.0
- pack: ARM::CMSIS-NN@8.0.0
- pack: ARM::Cortex_DFP@>=1.1.0
- pack: PyTorch::ExecuTorch

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5 changes: 0 additions & 5 deletions backends/arm/scripts/build_executor_runner.sh
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Expand Up @@ -146,10 +146,6 @@ ethosu_tools_dir=$(realpath ${ethosu_tools_dir})
ethos_u_root_dir="${ethosu_tools_dir}/ethos-u"
mkdir -p "${ethos_u_root_dir}"
ethos_u_root_dir=$(realpath ${ethos_u_root_dir})
cmsis_nn_local_path=""
if [[ -d "${ethos_u_root_dir}/core_software/cmsis-nn" ]]; then
cmsis_nn_local_path=$(realpath "${ethos_u_root_dir}/core_software/cmsis-nn")
fi

if [[ ${system_config} == "" ]]
then
Expand Down Expand Up @@ -246,7 +242,6 @@ cmake \
${flatc_flags} \
-DEXECUTORCH_SELECT_OPS_LIST="${select_ops_list}" \
-DETHOS_SDK_PATH:PATH=${ethos_u_root_dir} \
${cmsis_nn_local_path:+-DCMSIS_NN_LOCAL_PATH:PATH=${cmsis_nn_local_path}} \
${extra_build_flags}

echo "[${BASH_SOURCE[0]}] Configured CMAKE"
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2 changes: 1 addition & 1 deletion backends/cortex_m/CMakeLists.txt
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Expand Up @@ -23,7 +23,7 @@ include(FetchContent)

# CMSIS-NN configuration with dynamic path detection
set(CMSIS_NN_VERSION
"dbf45dbfcc515421dd6099037d3e2637b90748c8"
"v8.0.0"
CACHE STRING "CMSIS-NN version to download"
)
set(CMSIS_NN_LOCAL_PATH
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8 changes: 1 addition & 7 deletions backends/cortex_m/test/ops/test_conv_transpose.py
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Expand Up @@ -317,13 +317,7 @@ def test_dialect_conv_transpose2d(test_case, cortex_m_target):
tester.check_not(test_case.model.ops_after_absent)


xfails_implementation: dict[str, xfail_type] = {
"conv_transpose2d_relu": "Fused transpose-conv + relu lowers correctly but current implementation is numerically incorrect.",
"conv_transpose2d_hardtanh": "Fused transpose-conv + hardtanh lowers correctly but current implementation is numerically incorrect.",
}


@parametrize("test_case", test_cases, xfails=xfails_implementation)
@parametrize("test_case", test_cases)
def test_implementation_conv_transpose2d(test_case, cortex_m_target):
tester = CortexMTester(
test_case.model, test_case.example_inputs, target_config=cortex_m_target
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4 changes: 2 additions & 2 deletions examples/arduino/build_arduino_library.sh
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Expand Up @@ -318,8 +318,8 @@ done
# it with FetchContent at cmake time -- so fetch it at the revision that backend
# pins. Without it the Cortex-M ops compile against headers that are not there.
if [ -z "$CMSIS_NN" ]; then
CMSIS_NN_PIN=$(sed -n '/set(CMSIS_NN_VERSION/,/)/p' \
"$ET_ROOT/backends/cortex_m/CMakeLists.txt" | grep -oE '"[0-9a-f]{40}"' | tr -d '"')
CMSIS_NN_PIN=$(sed -n '/set(CMSIS_NN_VERSION/,/)/s/^[[:space:]]*"\([^"]*\)".*/\1/p' \
"$ET_ROOT/backends/cortex_m/CMakeLists.txt")
if [ -z "$CMSIS_NN_PIN" ]; then
echo "ERROR: could not read CMSIS_NN_VERSION from backends/cortex_m/CMakeLists.txt"
exit 1
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7 changes: 0 additions & 7 deletions examples/arm/run.sh
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Expand Up @@ -168,10 +168,6 @@ arm_scratch_dir=$(realpath "${arm_scratch_dir}")
ethos_u_root_dir="${arm_scratch_dir}/ethos-u"
mkdir -p "${ethos_u_root_dir}"
ethos_u_root_dir=$(realpath "${ethos_u_root_dir}")
cmsis_nn_local_path=""
if [[ -d "${ethos_u_root_dir}/core_software/cmsis-nn" ]]; then
cmsis_nn_local_path=$(realpath "${ethos_u_root_dir}/core_software/cmsis-nn")
fi
setup_path_script=${arm_scratch_dir}/setup_path.sh
_setup_msg="please refer to ${script_dir}/setup.sh to properly install necessary tools."

Expand Down Expand Up @@ -335,9 +331,6 @@ configure_runner_build_dir() {
-DETHOS_SDK_PATH:PATH="${ethos_u_root_dir}"
-DEXECUTORCH_SELECT_OPS_LIST="${select_ops_list}"
)
if [[ -n "${cmsis_nn_local_path}" ]]; then
cmake_cmd+=(-DCMSIS_NN_LOCAL_PATH:PATH="${cmsis_nn_local_path}")
fi
cmake_cmd+=(-DET_PTE_FILE_PATH:PATH="${pte_source}")
if [[ "${pte_placement}" == "elf" ]]; then
cmake_cmd+=(-DET_MODEL_PTE_ADDR=)
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