gcc/testsuite/gcc.target/powerpc/vsx-builtin-15a.c

   1 /* { dg-do run { target int128 } } */
   2 /* { dg-require-effective-target vsx_hw } */
   3 /* { dg-options "-mvsx" } */
   4
   5 /* This test should run the same on any target that supports vsx
   6    instructions.  Intentionally not specifying cpu in order to test
   7    all code generation paths.  */
   8
   9 #include <altivec.h>
  10
  11 extern void abort (void);
  12
  13 #define CONST0          (3.1415926539)
  14 #define CONST1          (3.1415926539 * 2)
  15
  16
  17 /* Test that indices > length of vector are applied modulo the vector
  18    length.  */
  19
  20 /* Test for vector residing in register.  */
  21 double e0(vector double v){ return __builtin_vec_ext_v2df (v, 0); }
  22 double e1(vector double v){ return __builtin_vec_ext_v2df (v, 1); }
  23 double e2(vector double v){ return __builtin_vec_ext_v2df (v, 2); }
  24 double e3(vector double v){ return __builtin_vec_ext_v2df (v, 3); }
  25
  26 /* Test for vector residing in memory.  */
  27 double me0(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 0); }
  28 double me1(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 1); }
  29 double me2(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 2); }
  30 double me3(vector double *vp){ return __builtin_vec_ext_v2df (*vp, 3); }
  31
  32 /* Test the same with variable indices.  */
  33
  34 /* Test for variable selector and vector residing in register.  */
  35 __attribute__((noinline))
  36 double ei(vector double v, int i){ return __builtin_vec_ext_v2df (v, i); }
  37
  38 /* Test for variable selector and vector residing in memory.  */
  39 double mei(vector double *vp, int i){ return __builtin_vec_ext_v2df (*vp, i); }
  40
  41
  42 int main (int argc, char *argv[]) {
  43   vector double dv;
  44   double d;
  45   dv[0] = CONST0;
  46   dv[1] = CONST1;
  47
  48   d = e0 (dv);
  49   if (d != CONST0)
  50     abort ();
  51
  52   d = e1 (dv);
  53   if (d != CONST1)
  54     abort ();
  55
  56   d = e2 (dv);
  57   if (d != CONST0)
  58     abort ();
  59
  60   d = e3 (dv);
  61   if (d != CONST1)
  62     abort ();
  63
  64   d = me0 (&dv);
  65   if (d != CONST0)
  66     abort ();
  67
  68   d = me1 (&dv);
  69   if (d != CONST1)
  70     abort ();
  71
  72   d = me2 (&dv);
  73   if (d != CONST0)
  74     abort ();
  75
  76   d = me3 (&dv);
  77   if (d != CONST1)
  78     abort ();
  79
  80   d = ei (dv, 0);
  81   if (d != CONST0)
  82     abort ();
  83
  84   d = ei (dv, 1);
  85   if (d != CONST1)
  86     abort ();
  87
  88   d = ei (dv, 2);
  89   if (d != CONST0)
  90     abort ();
  91
  92   d = ei (dv, 3);
  93   if (d != CONST1)
  94     abort ();
  95
  96   d = mei (&dv, 0);
  97   if (d != CONST0)
  98     abort ();
  99
 100   d = mei (&dv, 1);
 101   if (d != CONST1)
 102     abort ();
 103
 104   d = mei (&dv, 2);
 105   if (d != CONST0)
 106     abort ();
 107
 108   d = mei (&dv, 3);
 109   if (d != CONST1)
 110     abort ();
 111
 112   return 0;
 113 }