--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/globalalias.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,42 @@
+/* This test checks that local aliases behave sanely.  This is necessary for code correctness
+   of aliases introduced by ipa-visibility pass.
+
+   This test expose weird behavior of AIX's .set pseudo-op where the global symbol is created,
+   but all uses of the alias are syntactically replaced by uses of the target.  This means that
+   both counters are increased to 2.  */
+
+/* { dg-do run }
+   { dg-options "-O2" } 
+   { dg-require-alias "" }
+   { dg-additional-sources "globalalias-2.c" } */
+extern int test2count;
+extern void abort (void);
+extern void tt ();
+int testcount;
+static
+void test(void)
+{
+  testcount++;
+}
+__attribute__ ((weak,noinline))
+__attribute ((alias("test")))
+void test2(void);
+
+int main()
+{
+  test();
+  /* This call must bind locally.  */
+  if (!testcount)
+    abort ();
+  test2();
+  /* Depending on linker choice, this one may bind locally
+     or to the other unit.  */
+  if (!testcount && !test2count)
+    abort();
+  tt();
+
+  if ((testcount != 1 || test2count != 3)
+      && (testcount != 3 || test2count != 1))
+    abort ();
+  return 0;
+}