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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
//
//===----------------------------------------------------------------------===//
// void* operator new[](std::size_t, std::align_val_t);
// Test that we can replace the operator by replacing `operator new(std::size_t, std::align_val_t)` (the non-array version).
// UNSUPPORTED: c++03, c++11, c++14
// UNSUPPORTED: sanitizer-new-delete
// XFAIL: LIBCXX-AIX-FIXME
// 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 <cstdint>
#include <cassert>
#include <limits>
#include "test_macros.h"
#include "../types.h"
int new_called = 0;
int delete_called = 0;
alignas(OverAligned) char DummyData[alignof(OverAligned) * 3];
TEST_WORKAROUND_BUG_109234844_WEAK
void* operator new(std::size_t s, std::align_val_t a) {
assert(s <= sizeof(DummyData));
assert(static_cast<std::size_t>(a) == alignof(OverAligned));
++new_called;
return DummyData;
}
void operator delete(void*, std::align_val_t) noexcept {
++delete_called;
// nothing to delete, we didn't actually allocate in `operator new`
}
int main(int, char**) {
// Test with an overaligned type
{
new_called = delete_called = 0;
OverAligned* x = DoNotOptimize(new OverAligned[3]);
ASSERT_WITH_OPERATOR_NEW_FALLBACKS(static_cast<void*>(x) == DummyData);
ASSERT_WITH_OPERATOR_NEW_FALLBACKS(new_called == 1);
delete[] x;
ASSERT_WITH_OPERATOR_NEW_FALLBACKS(delete_called == 1);
}
// Test with a type that is right on the verge of being overaligned
{
new_called = delete_called = 0;
MaxAligned* x = DoNotOptimize(new MaxAligned[3]);
assert(x != nullptr);
assert(new_called == 0);
delete[] x;
assert(delete_called == 0);
}
// Test with a type that is clearly not overaligned
{
new_called = delete_called = 0;
int* x = DoNotOptimize(new int[3]);
assert(x != nullptr);
assert(new_called == 0);
delete[] x;
assert(delete_called == 0);
}
return 0;
}
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