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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// test aligned operator delete replacement.
// UNSUPPORTED: sanitizer-new-delete, c++03, c++11, c++14
// Libc++ when built for z/OS doesn't contain the aligned allocation functions,
// nor does the dynamic library shipped with z/OS.
// UNSUPPORTED: target={{.+}}-zos{{.*}}
#include <new>
#include <cstddef>
#include <cstdlib>
#include <cassert>
#include "test_macros.h"
constexpr auto OverAligned = __STDCPP_DEFAULT_NEW_ALIGNMENT__ * 2;
int unsized_delete_called = 0;
int unsized_delete_nothrow_called = 0;
int aligned_delete_called = 0;
void reset() {
unsized_delete_called = 0;
unsized_delete_nothrow_called = 0;
aligned_delete_called = 0;
}
alignas(OverAligned) char DummyData[OverAligned * 4];
void* operator new (std::size_t s, std::align_val_t)
{
assert(s <= sizeof(DummyData));
return DummyData;
}
void operator delete(void* p) noexcept
{
++unsized_delete_called;
std::free(p);
}
void operator delete(void* p, const std::nothrow_t&) noexcept
{
++unsized_delete_nothrow_called;
std::free(p);
}
void operator delete(void*, std::align_val_t) noexcept
{
++aligned_delete_called;
}
struct alignas(OverAligned) A {};
struct alignas(std::max_align_t) B {};
int main(int, char**)
{
reset();
{
B *bp = new B;
DoNotOptimize(bp);
assert(0 == unsized_delete_called);
assert(0 == unsized_delete_nothrow_called);
assert(0 == aligned_delete_called);
delete bp;
DoNotOptimize(bp);
assert(1 == unsized_delete_called);
assert(0 == unsized_delete_nothrow_called);
assert(0 == aligned_delete_called);
}
reset();
{
A *ap = new A;
DoNotOptimize(ap);
assert(0 == unsized_delete_called);
assert(0 == unsized_delete_nothrow_called);
assert(0 == aligned_delete_called);
delete ap;
DoNotOptimize(ap);
assert(0 == unsized_delete_called);
assert(0 == unsized_delete_nothrow_called);
assert(1 == aligned_delete_called);
}
return 0;
}
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