gcc/testsuite/gcc.dg/tree-ssa/loadpre24.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3
   4 int a;
   5
   6 int foo(int argc)
   7 {
   8   int b;
   9   int c;
  10   int i;
  11   int d, e;
  12
  13   for (i = 0; i < argc; i++)
  14     {
  15       e = a;
  16       a = 9;
  17     }
  18   return d + e;
  19 }
  20
  21 /* We will move the load of a out of the loop.  */
  22
  23 /* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre" } } */
  24 /* { dg-final { cleanup-tree-dump "pre" } } */