gcc/testsuite/gcc.dg/vect/no-section-anchors-vect-outer-4h.c

   1 /* { dg-require-effective-target vect_int } */
   2 #include <stdarg.h>
   3 #include "tree-vect.h"
   4
   5
   6 #define N 40
   7 #define M 128
   8 unsigned short a[M][N];
   9 unsigned int out[N];
  10
  11 /* Outer-loop vectorization. */
  12
  13 __attribute__ ((noinline))
  14 void
  15 foo (){
  16   int i,j;
  17   unsigned int diff;
  18
  19   for (i = 0; i < N; i++) {
  20     for (j = 0; j < M; j++) {
  21       a[j][i] = 4;
  22     }
  23     out[i]=5;
  24   }
  25 }
  26
  27 int main (void)
  28 {
  29   int i, j;
  30   check_vect ();
  31
  32   foo ();
  33
  34 #pragma GCC novector
  35   for (i = 0; i < N; i++) {
  36 #pragma GCC novector
  37     for (j = 0; j < M; j++) {
  38       if (a[j][i] != 4)
  39         abort ();
  40     }
  41     if (out[i] != 5)
  42       abort ();
  43   }
  44
  45   return 0;
  46 }
  47
  48
  49 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */