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/* { dg-do compile } */

/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=1" } */

/* Based on strict-overflow-5.c.  */

/* We can only unroll when using strict overflow semantics.  But we

   don't issue a warning for relying on undefined overflow in

   loops.  */

int foo (int i)

{

  int index;

  int r=0;

  for (index = i; index <= i+4; index+=2)

    r++;

  return r;

}