1 files changed, 88 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/ipa/devirt-c-7.C b/gcc-4.9/gcc/testsuite/g++.dg/ipa/devirt-c-7.C
new file mode 100644
index 000000000..2e76cbe40
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/ipa/devirt-c-7.C
@@ -0,0 +1,88 @@
+/* Verify that ipa-cp will not get confused by placement new constructing an
+   object within another one when looking for dynamic type change .  */
+/* { dg-do run } */
+/* { dg-require-effective-target nonpic } */
+/* { dg-options "-O3 -Wno-attributes"  } */
+
+extern "C" void abort (void);
+namespace std {
+  typedef __SIZE_TYPE__ size_t;
+}
+inline void* __attribute__ ((always_inline))
+operator new(std::size_t, void* __p) throw()
+{
+  return __p;
+}
+
+class A
+{
+public:
+  char data[256];
+  A();
+  virtual int foo (int i);
+};
+
+class B : public A
+{
+public:
+  virtual int foo (int i);
+};
+
+class C
+{
+public:
+  C();
+  virtual double foo (double i);
+};
+
+int A::foo (int i)
+{
+  return i + 1;
+}
+
+int B::foo (int i)
+{
+  return i + 2;
+}
+
+double C::foo (double i)
+{
+  return i + 3.5;
+}
+
+static int __attribute__ ((noinline)) middleman (class A *obj, int i)
+{
+  return obj->foo (i);
+}
+
+int __attribute__ ((noinline,noclone)) get_input(void)
+{
+  return 1;
+}
+
+__attribute__ ((always_inline)) C::C ()
+{
+}
+
+A::A ()
+{
+}
+
+static  __attribute__ ((noinline)) void bah ()
+{
+  class B b;
+
+  C *c = new ((void *) &b.data) C;
+
+  if (middleman (&b, get_input ()) != 3)
+    abort ();
+}
+
+int main (int argc, char *argv[])
+{
+  int i;
+
+  for (i = 0; i < 10; i++)
+    bah ();
+  return 0;
+}