cmake LIBOMP_HAVE___RDTSC examples

Lewuathe/mlir-hello thirdparty/llvm-project/openmp/runtime/cmake/config-ix.cmake :274 

check_c_source_compiles(
        "#ifdef LIBOMP_HAVE_X86INTRIN_H
         # include <x86intrin.h>
         #endif
         int main(int argc, char** argv) { unsigned long long t = __rdtsc(); return 0; }" LIBOMP_HAVE___RDTSC)

llvm-mirror/openmp runtime/cmake/config-ix.cmake :200 

check_c_source_compiles(
        "#ifdef LIBOMP_HAVE_X86INTRIN_H
         # include <x86intrin.h>
         #endif
         int main(int argc, char** argv) { unsigned long long t = __rdtsc(); return 0; }" LIBOMP_HAVE___RDTSC)

INET-RC/GeoMX 3rdparty/openmp/runtime/cmake/config-ix.cmake :209 

check_c_source_compiles(
        "#ifdef LIBOMP_HAVE_X86INTRIN_H
         # include <x86intrin.h>
         #endif
         int main(int argc, char** argv) { unsigned long long t = __rdtsc(); return 0; }" LIBOMP_HAVE___RDTSC)