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/libstdc++-v3/testsuite/26_numerics/cmath/51083.cc b/libstdc++-v3/testsuite/26_numerics/cmath/51083.cc
new file mode 100644
index 000000000..8ba9b10e5
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/cmath/51083.cc
@@ -0,0 +1,62 @@
+// { dg-options "-std=gnu++0x" }
+//
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <cmath>
+
+namespace a
+{
+  template<typename> class Mat { };
+
+  template<typename T> struct Mat2 : Mat<T> { };
+
+  template<typename T>
+    int fdim(Mat<T>) { return 1; }
+
+  template<typename T, typename U>
+    int floor(Mat<T>, U) { return 1; }
+  template<typename T, typename U>
+    int floor(T, Mat<U>) { return 1; }
+
+  template<typename T, typename U, typename V>
+    int fma(Mat<T>, U, V) { return 1; }
+  template<typename T, typename U, typename V>
+    int fma(T, Mat<U>, V) { return 1; }
+  template<typename T, typename U, typename V>
+    int fma(T, U, Mat<V>) { return 1; }
+}
+
+int main()
+{
+  int __attribute__((unused)) i;
+
+  using namespace std;
+
+  a::Mat2<double> c;
+  i = fdim(c);
+  i = floor(c, 0.);
+  i = floor(0., c);
+  i = floor(c, 1);
+  i = floor(1, c);
+  i = fma(c, 0., 1.);
+  i = fma(0., c, 1.);
+  i = fma(0., 1., c);
+  i = fma(c, 0., 1);
+  i = fma(0., c, 1);
+  i = fma(0., 1, c);
+}