--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr48768.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,39 @@
+/* PR debug/48768 */
+/* { dg-do compile } */
+/* { dg-options "-O -fcompare-debug" } */
+/* { dg-xfail-if "" { powerpc-ibm-aix* } } */
+
+int a, b;
+
+int
+bar (void)
+{
+  int i, j = 1;
+  for (i = 0; i != 10; i++)
+    {
+    lab:
+      if (i)
+	{
+	  int *k = &j;
+	}
+      else if (j)
+	goto lab;
+    }
+  return 1;
+}
+
+inline int
+foo (int x)
+{
+  unsigned int c = x;
+  int d = x;
+  if (bar ())
+    for (; c; c++)
+      while (x >= 0)
+	if (foo (d) >= 0)
+	  {
+	    d = bar ();
+	    a = b ? b : 1;
+	  }
+  return 0;
+}