gcc/testsuite/gcc.dg/tree-ssa/sccp-3.c

   1 /* PR/113080 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-optimized" } */
   4
   5 int a,b,n;
   6 int w;
   7 void fun1(int t)
   8 {
   9   for(int i=0;i<100;i++)
  10     {
  11       a+=w;
  12       b-=w;
  13       t+=a+b;
  14     }
  15   n=t;
  16 }
  17
  18 /* We should apply final value replacement to all reductions and
  19    elide the loop.  */
  20 /* { dg-final { scan-tree-dump-times "<bb" 1 "optimized" } } */