gcc/testsuite/gcc.dg/vect/vect-8.c

   1 /* { dg-require-effective-target vect_float } */
   2 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 float b[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
  10 float a[N];
  11
  12 __attribute__ ((noinline))
  13 int main1 (int n)
  14 {
  15   int i;
  16
  17   /* Vectorized: unknown loop bound).  */
  18   for (i = 0; i < n; i++){
  19     a[i] = b[i];
  20   }
  21
  22   /* check results:  */
  23 #pragma GCC novector
  24   for (i = 0; i < n; i++)
  25     {
  26       if (a[i] != b[i])
  27         abort ();
  28     }
  29
  30   return 0;
  31 }
  32
  33 int main (void)
  34 {
  35   check_vect ();
  36
  37   return main1 (N);
  38 }
  39
  40 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  41 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */