gcc/testsuite/gcc.dg/vect/vect-vfa-02.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 16
   7 int resultY[N] = {12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27};
   8 int resultZ[N] = {13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28};
   9 int X[N] = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25};
  10 int Y[N] = {};
  11 int Z[N] = {};
  12
  13 __attribute__ ((noinline)) void
  14 foo (int *in, int *out1, int *out2)
  15 {
  16   int i;
  17
  18   for (i = 0; i < N; i++)
  19     {
  20       out1[i] = in[i] + 2;
  21       out2[i] = in[i] + 3;
  22     }
  23 }
  24
  25 int
  26 main (void)
  27 {
  28   int i;
  29
  30   check_vect ();
  31
  32   foo (X, Y, Z);
  33
  34   /* check results:  */
  35 #pragma GCC novector
  36   for (i = 0; i < N; i++)
  37     {
  38       if (Y[i] != resultY[i])
  39         abort ();
  40
  41       if (Z[i] != resultZ[i])
  42         abort ();
  43     }
  44   return 0;
  45 }
  46
  47 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */