gcc/testsuite/gcc.dg/tree-ssa/loadpre20.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-pre-stats" } */
   3 typedef int type[2];
   4 int foo(type *a, int argc)
   5 {
   6   int d, e;
   7
   8   /* Should be able to eliminate the second load of *a along the main path. */
   9   d = (*a)[argc];
  10   if (!d)
  11       a++;
  12   e = (*a)[argc];
  13   return e;
  14 }
  15 /* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "pre"  } } */
  16 /* { dg-final { cleanup-tree-dump "pre" } } */