Merge to upstream r225300.

Change-Id: I2b23715db9ac129ff80aa78ad5824db0a4d6fbb3

test/std/numerics/numarray/class.gslice/gslice.access/tested_elsewhere.pass.cpp

@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}

test/std/numerics/numarray/class.gslice/gslice.cons/default.pass.cpp

@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <valarray>
+
+// class glice;
+
+// gslice();
+
+#include <valarray>
+#include <cassert>
+
+int main()
+{
+    std::gslice gs;
+    assert(gs.start() == 0);
+    assert(gs.size().size() == 0);
+    assert(gs.stride().size() == 0);
+}

test/std/numerics/numarray/class.gslice/gslice.cons/start_size_stride.pass.cpp

@@ -0,0 +1,38 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <valarray>
+
+// class glice;
+
+// gslice(size_t start, const valarray<size_t>& size,
+//                      const valarray<size_t>& stride);
+
+#include <valarray>
+#include <cassert>
+
+int main()
+{
+    std::size_t a1[] = {1, 2, 3};
+    std::size_t a2[] = {4, 5, 6};
+    std::valarray<std::size_t> size(a1, sizeof(a1)/sizeof(a1[0]));
+    std::valarray<std::size_t> stride(a2, sizeof(a2)/sizeof(a2[0]));
+    std::gslice gs(7, size, stride);
+    assert(gs.start() == 7);
+    std::valarray<std::size_t> r = gs.size();
+    assert(r.size() == 3);
+    assert(r[0] == 1);
+    assert(r[1] == 2);
+    assert(r[2] == 3);
+    r = gs.stride();
+    assert(r.size() == 3);
+    assert(r[0] == 4);
+    assert(r[1] == 5);
+    assert(r[2] == 6);
+}

test/std/numerics/numarray/class.gslice/nothing_to_do.pass.cpp

@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}