gcc/testsuite/gcc.dg/pr51879-18.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-tail-merge -fdump-tree-pre -fno-tree-copy-prop -fno-tree-dominator-opts -fno-tree-copyrename" } */
   3
   4 extern int foo (void);
   5
   6 void bar (int c, int *p)
   7 {
   8   int *q = p;
   9
  10   if (c)
  11     *p = foo ();
  12   else
  13     *q = foo ();
  14 }
  15
  16 /* { dg-final { scan-tree-dump-times "foo \\(" 1 "pre"} } */