+#define CLIB_MARCH_FN_POINTER(fn) \
+ clib_march_select_fn_ptr (fn##_march_fn_registrations);
+
+#define _CLIB_MARCH_FN_REGISTRATION(fn) \
+static clib_march_fn_registration \
+CLIB_MARCH_SFX(fn##_march_fn_registration) = \
+{ \
+ .name = CLIB_MARCH_VARIANT_STR \
+}; \
+\
+static void __clib_constructor \
+fn##_march_register () \
+{ \
+ clib_march_fn_registration *r; \
+ r = & CLIB_MARCH_SFX (fn##_march_fn_registration); \
+ r->priority = CLIB_MARCH_FN_PRIORITY(); \
+ r->next = fn##_march_fn_registrations; \
+ r->function = CLIB_MARCH_SFX (fn); \
+ fn##_march_fn_registrations = r; \
+}
+
+#ifdef CLIB_MARCH_VARIANT
+#define CLIB_MARCH_FN_REGISTRATION(fn) \
+extern clib_march_fn_registration *fn##_march_fn_registrations; \
+_CLIB_MARCH_FN_REGISTRATION(fn)
+#else
+#define CLIB_MARCH_FN_REGISTRATION(fn) \
+clib_march_fn_registration *fn##_march_fn_registrations = 0; \
+_CLIB_MARCH_FN_REGISTRATION(fn)
+#endif
+#define foreach_x86_64_flags \
+ _ (sse3, 1, ecx, 0) \
+ _ (pclmulqdq, 1, ecx, 1) \
+ _ (ssse3, 1, ecx, 9) \
+ _ (sse41, 1, ecx, 19) \
+ _ (sse42, 1, ecx, 20) \
+ _ (avx, 1, ecx, 28) \
+ _ (rdrand, 1, ecx, 30) \
+ _ (avx2, 7, ebx, 5) \
+ _ (rtm, 7, ebx, 11) \
+ _ (pqm, 7, ebx, 12) \
+ _ (pqe, 7, ebx, 15) \
+ _ (avx512f, 7, ebx, 16) \
+ _ (rdseed, 7, ebx, 18) \
+ _ (x86_aes, 1, ecx, 25) \
+ _ (sha, 7, ebx, 29) \
+ _ (vaes, 7, ecx, 9) \
+ _ (vpclmulqdq, 7, ecx, 10) \
+ _ (avx512_vnni, 7, ecx, 11) \
+ _ (avx512_bitalg, 7, ecx, 12) \
+ _ (avx512_vpopcntdq, 7, ecx, 14) \
+ _ (movdiri, 7, ecx, 27) \
+ _ (movdir64b, 7, ecx, 28) \
+ _ (invariant_tsc, 0x80000007, edx, 8)