gcc/testsuite/gcc.target/i386/sse4a-check.h

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "cpuid.h"
   5
   6 static void sse4a_test (void);
   7
   8 int
   9 main ()
  10 {
  11   unsigned int eax, ebx, ecx, edx;
  12
  13   if (!__get_cpuid (0x80000001, &eax, &ebx, &ecx, &edx))
  14     return 0;
  15
  16   /* Run SSE4a test only if host has SSE4a support.  */
  17   if (ecx & bit_SSE4a)
  18     sse4a_test ();
  19
  20   return 0;
  21 }