Add a test for PR ipa/63814

	PR ipa/63814
	* g++.dg/ipa/pr63814.C: New test.

From-SVN: r218268

gcc/testsuite/ChangeLog

+2014-12-02  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR ipa/63814
+	* g++.dg/ipa/pr63814.C: New test.
+
 2014-12-02  Wilco Dijkstra  <wilco.dijkstra@arm.com>
 
 	* gcc.target/aarch64/remat1.c: New testcase.

gcc/testsuite/g++.dg/ipa/pr63814.C

+// { dg-do run { target fpic } }
+// { dg-options "-O3 -fpic" }
+
+struct CBase {
+  virtual void BaseFunc () {}
+};
+
+struct MMixin {
+  virtual void * MixinFunc (int, int) = 0;
+};
+
+struct CExample: CBase, public MMixin
+{
+  void *MixinFunc (int arg, int arg2)
+  {
+    return this;
+  }
+};
+
+void *test (MMixin & anExample)
+{
+  return anExample.MixinFunc (0, 0);
+}
+
+int main ()
+{
+  CExample c;
+  return (test (c) != &c);
+}