gcc/testsuite/gcc.dg/pr51879-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-tail-merge -fdump-tree-pre" } */
   3
   4 int bar (int);
   5 void baz (int);
   6
   7 void
   8 foo (int y)
   9 {
  10   int a;
  11   if (y)
  12     baz (bar (7) + 6);
  13   else
  14     baz (bar (7) + 6);
  15 }
  16
  17 /* { dg-final { scan-tree-dump-times "bar \\(" 1 "pre"} } */
  18 /* { dg-final { scan-tree-dump-times "baz \\(" 1 "pre"} } */