obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 110 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/ipa/devirt-c-4.C b/gcc/testsuite/g++.dg/ipa/devirt-c-4.C
new file mode 100644
index 000000000..56d41e496
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/devirt-c-4.C
@@ -0,0 +1,110 @@
+/* Verify that ipa-cp correctly detects the dynamic type of an object
+   under construction when doing devirtualization.  */
+/* { dg-do run } */
+/* { dg-options "-O3 -fno-inline"  } */
+
+extern "C" void abort (void);
+
+class Distraction
+{
+public:
+  float f;
+  double d;
+  Distraction ()
+  {
+    f = 8.3;
+    d = 10.2;
+  }
+  virtual float bar (float z);
+};
+
+class A
+{
+public:
+  int data;
+  A();
+  virtual int foo (int i);
+};
+
+class B : public Distraction, public A
+{
+public:
+  B();
+  virtual int foo (int i);
+};
+
+class C : public B
+{
+public:
+  virtual int foo (int i);
+};
+
+
+float Distraction::bar (float z)
+{
+  f += z;
+  return f/2;
+}
+
+int A::foo (int i)
+{
+  return i + 1;
+}
+
+int B::foo (int i)
+{
+  return i + 2;
+}
+
+int C::foo (int i)
+{
+  return i + 3;
+}
+
+int __attribute__ ((noinline,noclone)) get_input(void)
+{
+  return 1;
+}
+
+static int __attribute__ ((noinline))
+middleman (class A *obj, int i)
+{
+  return obj->foo (i);
+}
+
+static void __attribute__ ((noinline))
+sth2 (A *a)
+{
+  if (a->foo (get_input ()) != 3)
+    abort ();
+}
+
+inline void __attribute__ ((always_inline)) sth1 (B *b)
+{
+  sth2 (b);
+}
+
+inline __attribute__ ((always_inline)) A::A()
+{
+  if (middleman (this, get_input ()) != 2)
+    abort ();
+}
+
+B::B() : Distraction(), A()
+{
+  sth1 (this);
+}
+
+static void bah ()
+{
+  class C c;
+}
+
+int main (int argc, char *argv[])
+{
+  int i;
+
+  for (i = 0; i < 10; i++)
+    bah ();
+  return 0;
+}