gcc/testsuite/gcc.dg/no-strict-overflow-5.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
   3
   4 /* Dual of strict-overflow-5.c.  */
   5
   6 /* We can only unroll when using strict overflow semantics.  */
   7
   8 int foo (int i)
   9 {
  10   int index;
  11   int r=0;
  12
  13   for (index = i; index <= i+4; index+=2)
  14     r++;
  15
  16   return r;
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "r = 3" 0 "optimized" } } */
  20 /* { dg-final { cleanup-tree-dump "optimized" } } */