+
−/* { dg-do compile } */
+
−/* { dg-options "-O2 -ftree-tail-merge -fdump-tree-pre -fno-tree-copy-prop -fno-tree-dominator-opts -fno-tree-copyrename" } */
+
−
+
−extern int foo (void);
+
−
+
−void bar (int c, int *p)
+
−{
+
−  int *q = p;
+
−
+
−  if (c)
+
−    *p = foo ();
+
−  else
+
−    *q = foo ();
+
−}
+
−
+
−/* { dg-final { scan-tree-dump-times "foo \\(" 1 "pre"} } */