gcc/testsuite/gcc.target/i386/fma4-check.h

   1 #include <stdlib.h>
   2
   3 #include "cpuid.h"
   4
   5 static void fma4_test (void);
   6
   7 static void
   8 __attribute__ ((noinline))
   9 do_test (void)
  10 {
  11   fma4_test ();
  12 }
  13
  14 int
  15 main ()
  16 {
  17   unsigned int eax, ebx, ecx, edx;
  18
  19   if (!__get_cpuid (0x80000001, &eax, &ebx, &ecx, &edx))
  20     return 0;
  21
  22   /* Run FMA4 test only if host has FMA4 support.  */
  23   if (ecx & bit_FMA4)
  24     do_test ();
  25
  26   return 0;
  27 }