Merging r339743:

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r339743 | ldionne | 2018-08-15 02:30:03 +0200 (Wed, 15 Aug 2018) | 14 lines

[libcxx] Fix XFAILs for aligned allocation tests on older OSX versions

Summary:
Since r338934, Clang emits an error when aligned allocation functions are
used in conjunction with a system libc++ dylib that does not support those
functions. This causes some tests to fail when testing against older libc++
dylibs. This commit marks those tests as UNSUPPORTED, and also documents the
various reasons for the tests being unsupported.

Reviewers: vsapsai, EricWF

Subscribers: christof, dexonsmith, cfe-commits, mclow.lists, EricWF

Differential Revision: https://reviews.llvm.org/D50341
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/branches/release_70@339854 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 26 insertions, 0 deletions

diff --git a/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_size_align_nothrow.sh.cpp b/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_size_align_nothrow.sh.cpp
new file mode 100644
index 000000000..1fe104551
--- /dev/null
+++ b/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_size_align_nothrow.sh.cpp
@@ -0,0 +1,26 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <new>
+
+// void* operator new(std::size_t, std::align_val_t, std::nothrow_t &);
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
+// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
+
+// REQUIRES: -faligned-allocation
+// RUN: %compile %verify -faligned-allocation
+
+#include <new>
+
+int main ()
+{
+    ::operator new(4, std::align_val_t{4}, std::nothrow);  // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
+}