--- xnu/xnu-12377.121.6/tests/bounded_ptr_src/unsafe_discard_bounds.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-//
-// Tests for
-//  T* unsafe_discard_bounds() const;
-//
-
-#include <libkern/c++/bounded_ptr.h>
-#include <array>
-#include <cstddef>
-#include <cstdint>
-#include <limits>
-#include <darwintest.h>
-#include <darwintest_utils.h>
-#include "test_utils.h"
-
-#define _assert(...) T_ASSERT_TRUE((__VA_ARGS__), # __VA_ARGS__)
-
-namespace {
-struct tracking_policy {
-	static bool did_trap;
-	static void
-	trap(char const*)
-	{
-		did_trap = true;
-	}
-};
-bool tracking_policy::did_trap = false;
-}
-
-struct T { int i; };
-
-template <typename T, typename QualT>
-static void
-tests()
-{
-	std::array<T, 5> array = {T{0}, T{1}, T{2}, T{3}, T{4}};
-
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^                                                ^
-		//   |                                                |
-		// begin, ptr                                        end
-		test_bounded_ptr<QualT> const ptr(array.begin() + 0, array.begin(), array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[0]);
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^        ^                                       ^
-		//   |        |                                       |
-		// begin     ptr                                     end
-		test_bounded_ptr<QualT> const ptr(array.begin() + 1, array.begin(), array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[1]);
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^                 ^                              ^
-		//   |                 |                              |
-		// begin              ptr                            end
-		test_bounded_ptr<QualT> const ptr(array.begin() + 2, array.begin(), array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[2]);
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^                                   ^            ^
-		//   |                                   |            |
-		// begin                                ptr          end
-		test_bounded_ptr<QualT> const ptr(array.begin() + 4, array.begin(), array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[4]);
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^                                                ^
-		//   |                                                |
-		// begin                                           end,ptr
-		test_bounded_ptr<QualT> const ptr(array.end(), array.begin(), array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == array.end());
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^                          ^        ^
-		//   |                          |        |
-		// begin                       end      ptr
-		test_bounded_ptr<QualT> ptr(array.end() - 1, array.begin(), array.end() - 2);
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[4]);
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^        ^                                        ^
-		//   |        |                                        |
-		// begin     ptr                                      end
-		test_bounded_ptr<QualT> ptr(array.begin() + 1, array.begin(), array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[1]);
-	}
-	{
-		// T{0}     T{1}     T{2}     T{3}     T{4}     <one-past-last>
-		//   ^        ^                                        ^
-		//   |        |                                        |
-		//  ptr     begin                                     end
-		test_bounded_ptr<QualT> ptr(array.begin(), array.begin() + 1, array.end());
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == &array[0]);
-	}
-
-	// Test discarding the bounds of a null pointer
-	{
-		test_bounded_ptr<QualT> const ptr(nullptr, nullptr, nullptr);
-		QualT* raw = ptr.unsafe_discard_bounds();
-		_assert(raw == nullptr);
-	}
-
-	// Test discarding the bounds on a pointer outside of representable memory.
-	// Even `unsafe_discard_bounds()` will trap in such conditions.
-	//
-	// To do this, we setup an imaginary object with a very high address, and
-	// we add a large-ish offset to it, such that adding the base to the offset
-	// would fall outside of the representable memory.
-	{
-		tracking_policy::did_trap = false;
-
-		QualT* end_of_memory = reinterpret_cast<QualT*>(std::numeric_limits<std::uintptr_t>::max());
-		QualT* base = end_of_memory - 500; // yeah, technically UB
-		std::ptrdiff_t offset = 501;
-
-		libkern::bounded_ptr<QualT, tracking_policy> ptr(base, base, base + 1);
-		ptr += offset; // now, `base_ + offset_` points outside of representable memory
-
-		_assert(!tracking_policy::did_trap);
-		(void)ptr.unsafe_discard_bounds();
-		_assert(tracking_policy::did_trap);
-	}
-}
-
-T_DECL(unsafe_discard_bounds, "bounded_ptr.unsafe_discard_bounds", T_META_TAG_VM_PREFERRED) {
-	tests<T, T>();
-	tests<T, T const>();
-	tests<T, T volatile>();
-	tests<T, T const volatile>();
-}