gcc/testsuite/gcc.target/powerpc/vsx-builtin-20a.c

/* { dg-do run { target int128 } } */
/* { dg-require-effective-target vsx_hw } */
/* { dg-options "-mvsx" } */

/* This test should run the same on any target that supports vsx
   instructions.  Intentionally not specifying cpu in order to test
   all code generation paths.  */

#include <altivec.h>

/* Define this after PR89424 is addressed.  */
#define PR89424

extern void abort (void);

#define CONST0		(((unsigned __int128) 31415926539) << 60)

/* Test that indices > length of vector are applied modulo the vector
   length.  */

/* Test for vector residing in register.  */
unsigned __int128 e0 (vector unsigned __int128 v)
{
  return __builtin_vec_extract (v, 0);
}

unsigned __int128 e3 (vector unsigned __int128 v)
{
  return __builtin_vec_extract (v, 3);
}

/* Test for vector residing in memory.  */
unsigned __int128 me0 (vector unsigned __int128 *vp)
{
  return __builtin_vec_extract (*vp, 0);
}

unsigned __int128 me3 (vector unsigned __int128 *vp)
{
  return __builtin_vec_extract (*vp, 3);
}

/* Test the same with variable indices.  */

#ifdef PR89424
/* Test for variable selector and vector residing in register.  */
__attribute__((noinline))
unsigned __int128 ei (vector unsigned __int128 v, int i)
{
  return __builtin_vec_extract (v, i);
}

/* Test for variable selector and vector residing in memory.  */
unsigned __int128 mei (vector unsigned __int128 *vp, int i)
{
  return __builtin_vec_extract (*vp, i);
}
#endif

int main (int argc, char *argv[]) {
  vector unsigned __int128 dv = { CONST0 };
  unsigned __int128 d;

  d = e0 (dv);
  if (d != CONST0)
    abort ();

  d = e3 (dv);
  if (d != CONST0)
    abort ();

  d = me0 (&dv);
  if (d != CONST0)
    abort ();

  d = me3 (&dv);
  if (d != CONST0)
    abort ();

#ifdef PR89424
  d = ei (dv, 0);
  if (d != CONST0)
    abort ();

  d = ei (dv, 1);
  if (d != CONST0)
    abort ();

  d = ei (dv, 2);
  if (d != CONST0)
    abort ();

  d = ei (dv, 3);
  if (d != CONST0)
    abort ();

  d = mei (&dv, 0);
  if (d != CONST0)
    abort ();

  d = mei (&dv, 1);
  if (d != CONST0)
    abort ();

  d = mei (&dv, 2);
  if (d != CONST0)
    abort ();

  d = mei (&dv, 3);
  if (d != CONST0)
    abort ();
#endif

  return 0;
}