gcc/testsuite/gcc.dg/vect/vect-shift-5.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_shift } */
   3 /* { dg-require-effective-target vect_int } */
   4
   5 typedef unsigned int uint32_t;
   6 typedef short unsigned int uint16_t;
   7
   8 int foo (uint32_t arr[4][4])
   9 {
  10   int sum = 0;
  11   for(int i = 0; i < 4; i++)
  12     {
  13       sum += ((arr[0][i] >> 10) * 20) + ((arr[1][i] >> 11) & 53)
  14              + ((arr[2][i] >> 12) * 7)  + ((arr[3][i] >> 13) ^ 43);
  15     }
  16     return (((uint16_t)sum) + ((uint32_t)sum >> 16)) >> 1;
  17 }
  18
  19 /* For a target that has a vector/scalar shift/rotate optab, check
  20    that we are not adding the cost of creating a vector from the scalar
  21    in the prologue.  */
  22 /* { dg-final { scan-tree-dump {vectorizable_shift ===[\n\r][^\n]*prologue_cost = 0} "vect" { target { aarch64*-*-* x86_64-*-* } } } } */