gcc/testsuite/gcc.target/powerpc/vec-rotate-2.c

   1 /* { dg-options "-O3 -mdejagnu-cpu=power8" } */
   2
   3 /* Check vectorizer can exploit vector rotation instructions on Power8, mainly
   4    for the case rotation count is const number.
   5
   6    Check for vrld which is available on Power8 and above.  */
   7
   8 #define N 256
   9 unsigned long long sud[N], rud[N];
  10
  11 void
  12 testULL ()
  13 {
  14   for (int i = 0; i < 256; ++i)
  15     rud[i] = (sud[i] >> 8) | (sud[i] << (sizeof (sud[0]) * 8 - 8));
  16 }
  17
  18 /* { dg-final { scan-assembler {\mvrld\M} } } */