[libc++] Revert "Make `vector` unconditionally move elements when exceptions are disabled."

This reverts r370502, which broke the use case of a copy-only T (with a
deleted move constructor) when exceptions are disabled. Until we figure
out the right behavior, I'm reverting the commit.

llvm-svn: 371068

1 files changed, 0 insertions, 57 deletions

diff --git a/libcxx/test/libcxx/containers/sequences/vector/exception_safety_exceptions_disabled.sh.cpp b/libcxx/test/libcxx/containers/sequences/vector/exception_safety_exceptions_disabled.sh.cpp
deleted file mode 100644
index 1e9cbde0114..00000000000
--- a/libcxx/test/libcxx/containers/sequences/vector/exception_safety_exceptions_disabled.sh.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// RUN: %build -fno-exceptions
-// RUN: %run
-
-// UNSUPPORTED: c++98, c++03
-
-// <vector>
-
-// Test that vector always moves elements when exceptions are disabled.
-// vector is allowed to move or copy elements while resizing, so long as
-// it still provides the strong exception safety guarantee.
-
-#include <vector>
-#include <cassert>
-
-#include "test_macros.h"
-
-#ifndef TEST_HAS_NO_EXCEPTIONS
-#error exceptions should be disabled.
-#endif
-
-bool allow_moves = false;
-
-class A {
-public:
-  A() {}
-  A(A&&) { assert(allow_moves); }
-  explicit A(int) {}
-  A(A const&) { assert(false); }
-};
-
-int main(int, char**) {
-  std::vector<A> v;
-
-  // Create a vector containing some number of elements that will
-  // have to be moved when it is resized.
-  v.reserve(10);
-  size_t old_cap = v.capacity();
-  for (int i = 0; i < v.capacity(); ++i) {
-    v.emplace_back(42);
-  }
-  assert(v.capacity() == old_cap);
-  assert(v.size() == v.capacity());
-
-  // The next emplace back should resize.
-  allow_moves = true;
-  v.emplace_back(42);
-
-  return 0;
-}