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, 23 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/ext/dllimport12.C b/gcc/testsuite/g++.dg/ext/dllimport12.C
new file mode 100644
index 000000000..ede546f20
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/dllimport12.C
@@ -0,0 +1,23 @@
+// PR target/27650
+// Don't use dllimport semantics on virtual methods when initializing
+// vtables
+// { dg-do compile { target i?86-*-cygwin* i?86-*-mingw* x86_64-*-mingw* } }
+
+// Use import lib thunk for vtable entry of explicitly virtual method,
+struct base
+{
+  virtual void key_method();
+  __attribute__((dllimport)) virtual ~base();
+};
+
+void base::key_method() {}
+
+
+// Likewise for an implicitly virtual method.
+struct derived : public base
+{
+  void key_method(); 
+  __attribute__((dllimport)) ~derived();
+};
+
+void derived::key_method() {}