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toddlipcon/gist:573a9e5563d22ed56e38cac5aba26b30

Created April 14, 2020 15:50
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gistfile1.txt
todd@va1022:/tmp$ cat test.cc
int main() {
return __builtin_cpu_supports("bmi") ? 0 : 1;
}
todd@va1022:/tmp$ g++ ./test.cc -O2 ; ./a.out && echo "supports bmi" || echo "no bmi"
no bmi
todd@va1022:/tmp$ g++ ./test.cc -O2 /opt/rh/devtoolset-9/root/usr/lib/gcc/x86_64-redhat-linux/9/libgcc.a ; ./a.out && echo "supports bmi" || echo "no bmi"
supports bmi
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