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, 62 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/ipa/devirt-2.C b/gcc/testsuite/g++.dg/ipa/devirt-2.C
new file mode 100644
index 000000000..d3181e4c0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/devirt-2.C
@@ -0,0 +1,62 @@
+/* Verify that simple virtual calls using this pointer are converted
+   to direct calls by ipa-cp.  */
+/* { dg-do run } */
+/* { dg-options "-O3 -fno-early-inlining -fno-inline -fdump-ipa-cp"  } */
+
+extern "C" void abort (void);
+
+class A
+{
+public:
+  int data;
+  virtual int foo (int i);
+  int middleman (int i)
+  {
+    return foo (i);
+  }
+};
+
+class B : public A
+{
+public:
+  virtual int foo (int i);
+};
+
+class C : public A
+{
+public:
+  virtual int foo (int i);
+};
+
+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;
+}
+
+int main (int argc, char *argv[])
+{
+  class B b;
+  int i;
+  for (i = 0; i < get_input(); i++)
+    if (b.middleman (get_input ()) != 3)
+      abort ();
+  return 0;
+}
+
+/* { dg-final { scan-ipa-dump "Discovered a virtual call to a known target.*B::foo"  "cp"  } } */
+/* { dg-final { cleanup-ipa-dump "cp" } } */