/* { dg-do compile } */ /* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */ /* Dual of strict-overflow-5.c. */ /* We can only unroll when using strict overflow semantics. */ int foo (int i) { int index; int r=0; for (index = i; index <= i+4; index+=2) r++; return r; } /* { dg-final { scan-tree-dump-times "r = 3" 0 "optimized" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */