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kleidiai: add CPU feature detection to CI run script #20394

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kleidiai: add CPU feature detection to CI run script #20394

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db8ea66
kleidiai: add cpu feature detection to CI run script
martin-klacer-arm Mar 6, 2026
b1f856a
kleidiai: revert unrelated requirements change
martin-klacer-arm Mar 11, 2026
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56 changes: 52 additions & 4 deletions ci/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -135,14 +135,62 @@ fi
if [ -n "${GG_BUILD_KLEIDIAI}" ]; then
echo ">>===== Enabling KleidiAI support"

# Detect candidate arch options for the current CPU
I8MM=""
FP16=""
SME=""
SVE=""
if [ "$(uname -s)" == "Darwin" ]; then
# Detect i8mm
if [ $(sysctl -n hw.optional.arm.FEAT_I8MM) -eq 1 ]; then
I8MM="+i8mm"
fi
# Detect FP16
if [ $(sysctl -n hw.optional.arm.FEAT_FP16) -eq 1 ]; then
FP16="+fp16"
fi
# Detect SME version
if [ $(sysctl -n hw.optional.arm.FEAT_SME2) -eq 1 ]; then
SME="+sme2"
elif [ $(sysctl -n hw.optional.arm.FEAT_SME) -eq 1 ]; then
SME="+sme"
fi
# Disable SVE on Darwin
SVE="+nosve"
elif [ "$(uname -s)" == "Linux" ]; then
# Detect i8mm
if grep "i8mm" /proc/cpuinfo -q; then
I8MM="+i8mm"
fi
# Detect FP16
if grep "fphp" /proc/cpuinfo -q; then
FP16="+fp16"
fi
# Detect SME version
if grep "sme2" /proc/cpuinfo -q; then
SME="+sme2"
elif grep "sme" /proc/cpuinfo -q; then
SME="+sme"
fi
# Detect SVE version if allowed
if [ -z ${GG_BUILD_NO_SVE} ]; then
if grep "sve2" /proc/cpuinfo -q; then
SVE="+sve2"
elif grep "sve" /proc/cpuinfo -q; then
SVE="+sve"
fi

fi
fi

# Configure usable candidates based on CPU options
CANDIDATES=(
"armv9-a+dotprod+i8mm+sve2"
"armv9-a+dotprod+i8mm"
"armv8.6-a+dotprod+i8mm"
"armv9-a+dotprod${FP16}${I8MM}${SME}${SVE}"
"armv8.6-a+dotprod${FP16}${I8MM}${SME}${SVE}"
"armv8.2-a+dotprod${FP16}${I8MM}${SME}${SVE}"
"armv8.2-a+dotprod"
)
CPU=""

for cpu in "${CANDIDATES[@]}"; do
if echo 'int main(){}' | ${CXX:-c++} -march="$cpu" -x c++ - -c -o /dev/null >/dev/null 2>&1; then
CPU="$cpu"
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