Subversion Repositories openrisc_me

#include "cpuid.h"

extern void exit (int) __attribute__((noreturn));

/* Determine what instruction set we've been compiled for,

   and detect that we're running with it.  */

static void __attribute__((constructor))

check_isa (void)

{

  int a, b, c, d;

  int c1, d1, c1e, d1e;

  c1 = d1 = c1e = d1e = 0;

#ifdef __MMX__

  d1 |= bit_MMX;

#endif

#ifdef __3dNOW__

  d1e |= bit_3DNOW;

#endif

#ifdef __3dNOW_A__

  d1e |= bit_3DNOWP;

#endif

#ifdef __SSE__

  d1 |= bit_SSE;

#endif

#ifdef __SSE2__

  d1 |= bit_SSE2;

#endif

#ifdef __SSE3__

  c1 |= bit_SSE3;

#endif

#ifdef __SSSE3__

  c1 |= bit_SSSE3;

#endif

#ifdef __SSE4_1__

  c1 |= bit_SSE4_1;

#endif

#ifdef __SSE4_2__

  c1 |= bit_SSE4_2;

#endif

#ifdef __AES__

  c1 |= bit_AES;

#endif

#ifdef __PCLMUL__

  c1 |= bit_PCLMUL;

#endif

#ifdef __AVX__

  c1 |= bit_AVX;

#endif

#ifdef __FMA__

  c1 |= bit_FMA;

#endif

#ifdef __SSE4A__

  c1e |= bit_SSE4a;

#endif

#ifdef __FMA4__

  c1e |= bit_FMA4;

#endif

#ifdef __XOP__

  c1e |= bit_XOP;

#endif

#ifdef __LWP__

  c1e |= bit_LWP;

#endif

  if (c1 | d1)

    {

      if (!__get_cpuid (1, &a, &b, &c, &d))

        goto fail;

      if ((c & c1) != c1 || (d & d1) != d1)

        goto fail;

    }

  if (c1e | d1e)

    {

      if (!__get_cpuid (0x80000001, &a, &b, &c, &d))

        goto fail;

      if ((c & c1e) != c1e || (d & d1e) != d1e)

        goto fail;

    }

  return;

 fail:

  exit (0);

}