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, 34 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/opt/pr20991.C b/gcc/testsuite/g++.dg/opt/pr20991.C
new file mode 100644
index 000000000..32b3d05c3
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr20991.C
@@ -0,0 +1,34 @@
+// PR middle-end/20991
+// { dg-options "-O2" }
+// { dg-do compile }
+
+struct S
+{
+  virtual inline int foo () const;
+  virtual inline bool bar () const;
+  virtual int baz (int) const;
+};
+
+inline int S::foo () const
+{
+  return 1;
+}
+
+inline bool S::bar () const
+{
+  return foo () == 0;
+}
+
+void A ()
+{
+  S s;
+  if (s.bar ())
+    s.foo ();
+}
+
+void B ()
+{
+  S s;
+  if (s.bar ())
+    s.foo ();
+}