+
−/* { dg-do compile } */
+
−/* { dg-options "-O2 -ftree-tail-merge -fdump-tree-pre" } */
+
−
+
−int
+
−f (int c, int b, int d)
+
−{
+
−  int r, e;
+
−
+
−  if (c)
+
−    r = b + d;
+
−  else
+
−    {
+
−      e = b + d;
+
−      r = e;
+
−    }
+
−
+
−  return r;
+
−}
+
−
+
−/* { dg-final { scan-tree-dump-times "if " 0 "pre"} } */
+
−/* { dg-final { scan-tree-dump-times "(?n)_.*\\+.*_" 1 "pre"} } */
+
−/* { dg-final { scan-tree-dump-not "Invalid sum" "pre"} } */