gcc/testsuite/gcc.dg/vect/vect-outer-2b.c

   1 /* { dg-require-effective-target vect_float } */
   2 #include <stdarg.h>
   3 #include "tree-vect.h"
   4
   5 #define N 40
   6 float image[2*N][N][N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
   7
   8 __attribute__ ((noinline)) void
   9 foo (){
  10   int i,j,k;
  11
  12  for (k=0; k<N; k++) {
  13   for (i = 0; i < N; i++) {
  14     for (j = 0; j < N; j++) {
  15       image[k+i][j][i] = j+i+k;
  16     }
  17   }
  18  }
  19 }
  20
  21 int main (void)
  22 {
  23   check_vect ();
  24   int i, j, k;
  25
  26   foo ();
  27
  28  for (k=0; k<N; k++) {
  29   for (i = 0; i < N; i++) {
  30 #pragma GCC novector
  31     for (j = 0; j < N; j++) {
  32       if (image[k+i][j][i] != j+i+k)
  33         abort ();
  34     }
  35   }
  36  }
  37
  38   return 0;
  39 }
  40
  41 /* { dg-final { scan-tree-dump-times "grouped access in outer loop" 1 "vect" } } */