gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-16.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-lim2-details" } */
   3
   4 volatile int flag, bar;
   5 double foo (double *valp)
   6 {
   7   double sum = 0;
   8   for (int i = 0; i < 256; ++i)
   9     {
  10       for (int j = 0; j < 256; ++j)
  11         bar = flag;
  12       if (flag)
  13         sum += 1.;
  14       sum += *valp; // we should move the load of *valp out of the loop
  15     }
  16   return sum;
  17 }
  18
  19 /* { dg-final { scan-tree-dump-times "Moving statement" 1 "lim2" } } */