Initial LsPower implementation

.venv/Lib/site-packages/numpy/distutils/checks/cpu_avx512_spr.c

@@ -0,0 +1,26 @@
+#if defined(DETECT_FEATURES) && defined(__INTEL_COMPILER)
+    /*
+     * Unlike GCC and CLANG, Intel Compiler exposes all supported intrinsics,
+     * whether or not the build options for those features are specified.
+     * Therefore, we must test #definitions of CPU features when option native/host
+     * is enabled via `--cpu-baseline` or through env var `CFLAGS` otherwise
+     * the test will be broken and leads to enable all possible features.
+     */
+    #if !defined(__AVX512FP16__)
+        #error "HOST/ARCH doesn't support Sapphire Rapids AVX512FP16 features"
+    #endif
+#endif
+
+#include <immintrin.h>
+
+int main(int argc, char **argv)
+{
+/* clang has a bug regarding our spr coode, see gh-23730. */
+#if __clang__
+#error
+#endif
+    __m512h a = _mm512_loadu_ph((void*)argv[argc-1]);
+    __m512h temp = _mm512_fmadd_ph(a, a, a);
+    _mm512_storeu_ph((void*)(argv[argc-1]), temp);
+    return 0;
+}