Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 39 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/g++.dg/ipa/devirt-16.C b/gcc-4.9/gcc/testsuite/g++.dg/ipa/devirt-16.C
new file mode 100644
index 0000000..8556786
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/ipa/devirt-16.C
@@ -0,0 +1,39 @@
+/* We shall devirtualize to unreachable.  No anonymous type method should surivve
+   reachability.  */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-ipa-whole-program"  } */
+namespace {
+class B {
+public:
+  virtual int foo(void)
+{
+  return 0;
+}
+};
+class A : public B {
+public:
+  virtual int foo(void)
+{
+  return 1;
+}
+};
+}
+class B *b;
+main()
+{
+  int c;
+  if (c)
+    {
+    class A a;
+    a.foo();
+    class B b;
+    b.foo();
+    }
+  return b->foo();
+}
+
+/* { dg-final { scan-ipa-dump "Devirtualizing" "whole-program"} } */
+/* { dg-final { scan-ipa-dump "builtin_unreachable" "whole-program"} } */
+/* { dg-final { scan-ipa-dump-not "A::foo" "whole-program"} } */
+/* { dg-final { scan-ipa-dump-not "A::foo" "whole-program"} } */
+/* { dg-final { cleanup-ipa-dump "whole-program" } } */