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Simplify the code to get the native flags

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closes https://github.com/official-stockfish/Stockfish/pull/4908

No functional change
This commit is contained in:
ppigazzini 2023-12-06 18:01:58 +01:00 • committed by Disservin
parent 53ad6d23b0
commit 8724503d9c
1 changed files with 3 additions and 4 deletions
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7
scripts/get_native_properties.sh
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@ -14,10 +14,9 @@ check_flags() {
}
# Set the CPU flags list
get_flags() {
flags="$(awk '/^flags[ \t]*:/{gsub(/^flags[ \t]*:[ \t]*/, ""); line=$0} END{print line}' /proc/cpuinfo) $(awk '/^Features[ \t]*:/{gsub(/^Features[ \t]*:[ \t]*/, ""); line=$0} END{print line}' /proc/cpuinfo)"
# remove underscores and points from flags, e.g. gcc uses avx512vnni, while some cpuinfo can have avx512_vnni, some systems use sse4_1 others sse4.1
flags=$(printf '%s' "$flags" | sed "s/[_.]//g")
get_flags() {
flags=$(awk '/^flags[ \t]*:|^Features[ \t]*:/{gsub(/^flags[ \t]*:[ \t]*|^Features[ \t]*:[ \t]*|[_.]/, ""); line=$0} END{print line}' /proc/cpuinfo)
}
# Check for gcc march "znver1" or "znver2" https://en.wikichip.org/wiki/amd/cpuid
@ -55,7 +54,7 @@ case $uname_s in
file_arch='x86-64-sse41-popcnt' # Supported by Rosetta 2
;;
'x86_64')
flags=$(sysctl -n machdep.cpu.features machdep.cpu.leaf7_features | tr '\n' ' ' | tr '[:upper:]' '[:lower:]' | sed "s/[_.]//g")
flags=$(sysctl -n machdep.cpu.features machdep.cpu.leaf7_features | tr '\n' ' ' | tr '[:upper:]' '[:lower:]' | tr -d '_.')
set_arch_x86_64
if [ "$true_arch" = 'x86-64-vnni256' ] || [ "$true_arch" = 'x86-64-avx512' ]; then
file_arch='x86-64-bmi2'