gcc/testsuite/gcc.dg/vect/no-scevccp-vect-iv-1.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 26
   7
   8 __attribute__ ((noinline)) int main1 (int X)
   9 {
  10   int s = X;
  11   int i;
  12
  13   /* vectorization of reduction with induction.
  14      Need -fno-tree-scev-cprop or else the loop is eliminated.  */
  15   for (i = 0; i < N; i++)
  16     s += i;
  17
  18   return s;
  19 }
  20
  21 int main (void)
  22 {
  23   int s;
  24   check_vect ();
  25
  26   s = main1 (3);
  27   if (s != 328)
  28     abort ();
  29
  30   return 0;
  31 }
  32
  33 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  34 /* { dg-final { cleanup-tree-dump "vect" } } */