gcc/testsuite/gcc.dg/vect/vect-112.c

   1 /* { dg-require-effective-target vect_int } */
   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 char cb[N] = {2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17};
  10 char cc[N] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
  11
  12 __attribute__ ((noinline)) int
  13 main1 (void)
  14 {
  15   int i;
  16   int diff = 0;
  17
  18   /* Cross-iteration cycle.  */
  19   diff = 0;
  20   for (i = 0; i < N; i++) {
  21     diff += (cb[i] - cc[i]);
  22   }
  23
  24   /* Check results.  */
  25   if (diff != 16)
  26     abort();
  27
  28   return 0;
  29 }
  30
  31 int main (void)
  32 {
  33   check_vect ();
  34   return main1 ();
  35 }
  36
  37 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_unpack } } } */
  38
  39
  40 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */