1  /* { dg-require-effective-target vect_int } */
       2  
       3  #include <stdarg.h>
       4  #include "tree-vect.h"
       5  
       6  #define M00 100
       7  #define M10 216
       8  #define M01 1322
       9  #define M11 13
      10  #define M02 74
      11  #define M12 191
      12  
      13  #define N 16
      14  
      15  void __attribute__((noinline))
      16  foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
      17  {
      18    unsigned int i, a, b;
      19  
      20    for (i = 0; i < N / 2; i++)
      21      {
      22         a = *pInput++;
      23         b = *pInput++;
      24  
      25         *pOutput++ = M00 * a + M01 * b;
      26         *pOutput++ = M10 * a + M11 * b;
      27      }
      28  }
      29  
      30  int main (int argc, const char* argv[])
      31  {
      32    unsigned int input[N], output[N], i;
      33    unsigned int check_results[N] = {1322, 13, 4166, 471, 7010, 929, 9854, 1387, 12698, 1845, 15542, 2303, 18386, 2761, 21230, 3219};
      34  
      35    check_vect ();
      36  
      37    for (i = 0; i < N; i++)
      38      {
      39        input[i] = i%256;
      40        output[i] = 0;
      41        __asm__ volatile ("");
      42      }
      43  
      44    foo (input, output);
      45  
      46    for (i = 0; i < N; i++)
      47      {
      48        if (output[i] != check_results[i])
      49  	abort ();
      50        __asm__ volatile ("");
      51      }
      52  
      53    return 0;
      54  }
      55  
      56  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target vect_perm } } } */
      57  /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { vect_perm && {! vect_load_lanes } } } } } */
      58  /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" { target vect_load_lanes } } } */
      59  /* { dg-final { scan-tree-dump "Built SLP cancelled: can use load/store-lanes" "vect" { target { vect_perm && vect_load_lanes } } } } */
      60  /* { dg-final { scan-tree-dump "LOAD_LANES" "vect" { target vect_load_lanes } } } */
      61  /* { dg-final { scan-tree-dump "STORE_LANES" "vect" { target vect_load_lanes } } } */