gcc/testsuite/gcc.target/powerpc/swaps-p8-20.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target powerpc_altivec_ok } */
   3 /* { dg-options "-O2 -mdejagnu-cpu=power8 -maltivec" } */
   4
   5 /* The expansion for vector character multiply introduces a vperm operation.
   6    This tests that the swap optimization to remove swaps by changing the
   7    vperm mask results in correct code.  */
   8
   9 #include <altivec.h>
  10
  11 void abort ();
  12
  13 vector unsigned char r;
  14 vector unsigned char v =
  15   { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
  16 vector unsigned char i =
  17   { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
  18 vector unsigned char e =
  19   {0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 110, 132, 156, 182, 210, 240};
  20
  21 int main ()
  22 {
  23   int j;
  24   r = v * i;
  25   if (!vec_all_eq (r, e))
  26     abort ();
  27   return 0;
  28 }