[llvm-branch-commits] [libcxx] [libc++][C++03] Remove XFAILs from the non-frozen libc++-specific tests (PR #144101)
Nikolas Klauser via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Fri Jun 13 08:50:26 PDT 2025
https://github.com/philnik777 created https://github.com/llvm/llvm-project/pull/144101
The tests in `libcxx/test/libcxx` aren't run against the frozen headers anymore, so we can remove any XFAILs in them.
This is part of https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc.
>From e080572b8168260ecb4c8b2be39111d579056f74 Mon Sep 17 00:00:00 2001
From: Nikolas Klauser <nikolasklauser at berlin.de>
Date: Fri, 13 Jun 2025 17:49:01 +0200
Subject: [PATCH] [libc++][C++03] Remove XFAILs from the non-frozen
libc++-specific tests
---
libcxx/test/libcxx/algorithms/half_positive.pass.cpp | 2 --
libcxx/test/libcxx/algorithms/vectorization.compile.pass.cpp | 2 --
.../assertions/customize_verbose_abort.link-time.pass.cpp | 2 --
libcxx/test/libcxx/assertions/default_verbose_abort.pass.cpp | 2 --
libcxx/test/libcxx/assertions/modes/none.pass.cpp | 2 --
libcxx/test/libcxx/assertions/single_expression.pass.cpp | 2 --
.../atomics.types.operations.req/atomic_fetch_add.verify.cpp | 2 --
.../atomic_fetch_add_explicit.verify.cpp | 2 --
.../atomics.types.operations.req/atomic_fetch_sub.verify.cpp | 2 --
.../atomic_fetch_sub_explicit.verify.cpp | 2 --
libcxx/test/libcxx/clang_modules_include.gen.py | 2 --
libcxx/test/libcxx/clang_tidy.gen.py | 3 ---
.../containers/associative/tree_balance_after_insert.pass.cpp | 2 --
.../containers/associative/tree_key_value_traits.pass.cpp | 2 --
.../libcxx/containers/associative/tree_left_rotate.pass.cpp | 2 --
libcxx/test/libcxx/containers/associative/tree_remove.pass.cpp | 2 --
.../libcxx/containers/associative/tree_right_rotate.pass.cpp | 2 --
.../containers/associative/unord.map/abi.compile.pass.cpp | 2 --
.../containers/associative/unord.set/abi.compile.pass.cpp | 2 --
.../test/libcxx/containers/container_traits.compile.pass.cpp | 2 --
libcxx/test/libcxx/containers/unord/key_value_traits.pass.cpp | 2 --
libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp | 2 --
libcxx/test/libcxx/containers/unord/next_prime.pass.cpp | 2 --
libcxx/test/libcxx/depr/depr.c.headers/extern_c.pass.cpp | 2 --
.../libcxx/experimental/fexperimental-library.compile.pass.cpp | 2 --
libcxx/test/libcxx/header_inclusions.gen.py | 1 -
.../string.streams/stringbuf/const_sso_buffer.pass.cpp | 2 --
libcxx/test/libcxx/iterators/aliasing_iterator.pass.cpp | 2 --
libcxx/test/libcxx/iterators/bounded_iter/arithmetic.pass.cpp | 2 --
libcxx/test/libcxx/iterators/bounded_iter/comparison.pass.cpp | 2 --
.../test/libcxx/iterators/bounded_iter/pointer_traits.pass.cpp | 2 --
.../test/libcxx/iterators/bounded_iter/types.compile.pass.cpp | 2 --
.../iterators/contiguous_iterators.conv.compile.pass.cpp | 2 --
libcxx/test/libcxx/iterators/contiguous_iterators.verify.cpp | 2 --
.../iterator.primitives/iterator.operations/prev.verify.cpp | 2 --
.../language.support/support.dynamic/libcpp_deallocate.sh.cpp | 2 --
libcxx/test/libcxx/memory/allocation_guard.pass.cpp | 2 --
libcxx/test/libcxx/memory/swap_allocator.pass.cpp | 2 --
libcxx/test/libcxx/numerics/bit.ops.pass.cpp | 2 --
libcxx/test/libcxx/numerics/clamp_to_integral.pass.cpp | 2 --
.../libcxx/numerics/complex.number/cmplx.over.pow.pass.cpp | 2 --
libcxx/test/libcxx/selftest/test_macros.pass.cpp | 2 --
.../strings/basic.string/string.capacity/max_size.pass.cpp | 2 --
.../test/libcxx/strings/c.strings/constexpr_memmove.pass.cpp | 2 --
libcxx/test/libcxx/system_reserved_names.gen.py | 2 --
libcxx/test/libcxx/transitive_includes.gen.py | 2 --
libcxx/test/libcxx/type_traits/datasizeof.compile.pass.cpp | 2 --
libcxx/test/libcxx/type_traits/desugars_to.compile.pass.cpp | 2 --
libcxx/test/libcxx/type_traits/is_constant_evaluated.pass.cpp | 2 --
libcxx/test/libcxx/type_traits/is_replaceable.compile.pass.cpp | 2 --
.../type_traits/is_trivially_comparable.compile.pass.cpp | 2 --
.../type_traits/is_trivially_relocatable.compile.pass.cpp | 2 --
libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp | 2 --
.../function.objects/refwrap/desugars_to.compile.pass.cpp | 2 --
libcxx/test/libcxx/utilities/is_pointer_in_range.pass.cpp | 2 --
libcxx/test/libcxx/utilities/is_valid_range.pass.cpp | 2 --
.../libcxx/utilities/meta/is_referenceable.compile.pass.cpp | 2 --
libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp | 2 --
libcxx/test/libcxx/utilities/no_destroy.pass.cpp | 2 --
libcxx/test/libcxx/utilities/template.bitset/includes.pass.cpp | 2 --
.../utilities/utility/private_constructor_tag.compile.pass.cpp | 2 --
61 files changed, 122 deletions(-)
diff --git a/libcxx/test/libcxx/algorithms/half_positive.pass.cpp b/libcxx/test/libcxx/algorithms/half_positive.pass.cpp
index 88a18e8592921..40f4697419572 100644
--- a/libcxx/test/libcxx/algorithms/half_positive.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/half_positive.pass.cpp
@@ -11,8 +11,6 @@
// __half_positive divides an integer number by 2 as unsigned number for known types.
// It can be an important optimization for lower bound, for example.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__algorithm/half_positive.h>
#include <cassert>
#include <cstddef>
diff --git a/libcxx/test/libcxx/algorithms/vectorization.compile.pass.cpp b/libcxx/test/libcxx/algorithms/vectorization.compile.pass.cpp
index 733a147b80cc3..61f925ddcdcd1 100644
--- a/libcxx/test/libcxx/algorithms/vectorization.compile.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/vectorization.compile.pass.cpp
@@ -9,8 +9,6 @@
// We don't know how to vectorize algorithms on GCC
// XFAIL: gcc
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// We don't vectorize algorithms before C++14
// XFAIL: c++03, c++11
diff --git a/libcxx/test/libcxx/assertions/customize_verbose_abort.link-time.pass.cpp b/libcxx/test/libcxx/assertions/customize_verbose_abort.link-time.pass.cpp
index 390c6b6db190d..21e9003c30b70 100644
--- a/libcxx/test/libcxx/assertions/customize_verbose_abort.link-time.pass.cpp
+++ b/libcxx/test/libcxx/assertions/customize_verbose_abort.link-time.pass.cpp
@@ -12,8 +12,6 @@
// failures when back-deploying.
// XFAIL: availability-verbose_abort-missing
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__verbose_abort>
#include <cstdlib>
diff --git a/libcxx/test/libcxx/assertions/default_verbose_abort.pass.cpp b/libcxx/test/libcxx/assertions/default_verbose_abort.pass.cpp
index 803868b757794..0cc4b1e005226 100644
--- a/libcxx/test/libcxx/assertions/default_verbose_abort.pass.cpp
+++ b/libcxx/test/libcxx/assertions/default_verbose_abort.pass.cpp
@@ -9,8 +9,6 @@
// Test that the default verbose termination function aborts the program.
// XFAIL: availability-verbose_abort-missing
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__verbose_abort>
#include <csignal>
#include <cstdlib>
diff --git a/libcxx/test/libcxx/assertions/modes/none.pass.cpp b/libcxx/test/libcxx/assertions/modes/none.pass.cpp
index b64290a31a129..8332848c1a8e0 100644
--- a/libcxx/test/libcxx/assertions/modes/none.pass.cpp
+++ b/libcxx/test/libcxx/assertions/modes/none.pass.cpp
@@ -11,8 +11,6 @@
// REQUIRES: libcpp-hardening-mode=none
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__assert>
#include <cassert>
diff --git a/libcxx/test/libcxx/assertions/single_expression.pass.cpp b/libcxx/test/libcxx/assertions/single_expression.pass.cpp
index 474edc9dc0833..13253e4cb6ef5 100644
--- a/libcxx/test/libcxx/assertions/single_expression.pass.cpp
+++ b/libcxx/test/libcxx/assertions/single_expression.pass.cpp
@@ -10,8 +10,6 @@
// This is useful so we can use them in places that require an expression, such as
// in a constructor initializer list.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__assert>
#include <cassert>
diff --git a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add.verify.cpp b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add.verify.cpp
index 320ef57dcb6f9..f114efe4e64da 100644
--- a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add.verify.cpp
+++ b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add.verify.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// <atomic>
// template <class T>
diff --git a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add_explicit.verify.cpp b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add_explicit.verify.cpp
index bdd8089feb281..04e9c458321df 100644
--- a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add_explicit.verify.cpp
+++ b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_add_explicit.verify.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// <atomic>
// template <class T>
diff --git a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub.verify.cpp b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub.verify.cpp
index 2c9f89891d5be..dd95c23273733 100644
--- a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub.verify.cpp
+++ b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub.verify.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// <atomic>
// template <class T>
diff --git a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub_explicit.verify.cpp b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub_explicit.verify.cpp
index 88c42750b608a..b4d4f0a1fc70d 100644
--- a/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub_explicit.verify.cpp
+++ b/libcxx/test/libcxx/atomics/atomics.types.operations/atomics.types.operations.req/atomic_fetch_sub_explicit.verify.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// <atomic>
// template <class T>
diff --git a/libcxx/test/libcxx/clang_modules_include.gen.py b/libcxx/test/libcxx/clang_modules_include.gen.py
index 379ac22c8f47f..dc815d9c772b5 100644
--- a/libcxx/test/libcxx/clang_modules_include.gen.py
+++ b/libcxx/test/libcxx/clang_modules_include.gen.py
@@ -52,8 +52,6 @@
// TODO: Fix seemingly circular inclusion or <wchar.h> on AIX
// UNSUPPORTED: LIBCXX-AIX-FIXME
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
{lit_header_restrictions.get(header, '')}
{lit_header_undeprecations.get(header, '')}
diff --git a/libcxx/test/libcxx/clang_tidy.gen.py b/libcxx/test/libcxx/clang_tidy.gen.py
index dbab2875e3126..1663f5c396bbf 100644
--- a/libcxx/test/libcxx/clang_tidy.gen.py
+++ b/libcxx/test/libcxx/clang_tidy.gen.py
@@ -24,9 +24,6 @@
// REQUIRES: has-clang-tidy
-// The frozen headers should not be updated to the latest libc++ style, so don't test.
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
// The GCC compiler flags are not always compatible with clang-tidy.
// UNSUPPORTED: gcc
diff --git a/libcxx/test/libcxx/containers/associative/tree_balance_after_insert.pass.cpp b/libcxx/test/libcxx/containers/associative/tree_balance_after_insert.pass.cpp
index ccd84af44c3a5..4fb9d8e6775ae 100644
--- a/libcxx/test/libcxx/containers/associative/tree_balance_after_insert.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/tree_balance_after_insert.pass.cpp
@@ -13,8 +13,6 @@
// void
// __tree_balance_after_insert(_NodePtr __root, _NodePtr __x)
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__tree>
#include <cassert>
diff --git a/libcxx/test/libcxx/containers/associative/tree_key_value_traits.pass.cpp b/libcxx/test/libcxx/containers/associative/tree_key_value_traits.pass.cpp
index 04dcb8f54fafc..472969fadb266 100644
--- a/libcxx/test/libcxx/containers/associative/tree_key_value_traits.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/tree_key_value_traits.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__tree>
#include <map>
#include <set>
diff --git a/libcxx/test/libcxx/containers/associative/tree_left_rotate.pass.cpp b/libcxx/test/libcxx/containers/associative/tree_left_rotate.pass.cpp
index d97a1c89f1f70..e6cc646f3c137 100644
--- a/libcxx/test/libcxx/containers/associative/tree_left_rotate.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/tree_left_rotate.pass.cpp
@@ -13,8 +13,6 @@
// void
// __tree_left_rotate(_NodePtr __x);
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__tree>
#include <cassert>
diff --git a/libcxx/test/libcxx/containers/associative/tree_remove.pass.cpp b/libcxx/test/libcxx/containers/associative/tree_remove.pass.cpp
index e543c3360a685..dd9e7afcdb7d3 100644
--- a/libcxx/test/libcxx/containers/associative/tree_remove.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/tree_remove.pass.cpp
@@ -13,8 +13,6 @@
// void
// __tree_remove(_NodePtr __root, _NodePtr __z)
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__tree>
#include <cassert>
diff --git a/libcxx/test/libcxx/containers/associative/tree_right_rotate.pass.cpp b/libcxx/test/libcxx/containers/associative/tree_right_rotate.pass.cpp
index b86446f5be101..f3297dedb64e5 100644
--- a/libcxx/test/libcxx/containers/associative/tree_right_rotate.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/tree_right_rotate.pass.cpp
@@ -13,8 +13,6 @@
// void
// __tree_right_rotate(_NodePtr __x);
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__tree>
#include <cassert>
diff --git a/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp
index 55d42a8d017e1..cea074a4e70f1 100644
--- a/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/unord.map/abi.compile.pass.cpp
@@ -12,8 +12,6 @@
// unordered containers changes when bounded unique_ptr is enabled.
// UNSUPPORTED: libcpp-has-abi-bounded-unique_ptr
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <cstdint>
#include <unordered_map>
diff --git a/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp
index bee2012bbea29..2a112aff227d8 100644
--- a/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp
+++ b/libcxx/test/libcxx/containers/associative/unord.set/abi.compile.pass.cpp
@@ -12,8 +12,6 @@
// unordered containers changes when bounded unique_ptr is enabled.
// UNSUPPORTED: libcpp-has-abi-bounded-unique_ptr
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <cstdint>
#include <unordered_set>
diff --git a/libcxx/test/libcxx/containers/container_traits.compile.pass.cpp b/libcxx/test/libcxx/containers/container_traits.compile.pass.cpp
index 22be217487951..1452bfbaf3960 100644
--- a/libcxx/test/libcxx/containers/container_traits.compile.pass.cpp
+++ b/libcxx/test/libcxx/containers/container_traits.compile.pass.cpp
@@ -9,8 +9,6 @@
// <__type_traits/container_traits.h>
//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__type_traits/container_traits.h>
#include <deque>
diff --git a/libcxx/test/libcxx/containers/unord/key_value_traits.pass.cpp b/libcxx/test/libcxx/containers/unord/key_value_traits.pass.cpp
index e00a028489a72..b93bb93dcb7b1 100644
--- a/libcxx/test/libcxx/containers/unord/key_value_traits.pass.cpp
+++ b/libcxx/test/libcxx/containers/unord/key_value_traits.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__hash_table>
#include <unordered_map>
#include <unordered_set>
diff --git a/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp b/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp
index 53a1dd2d3fa76..8a9e1da01592e 100644
--- a/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp
+++ b/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp
@@ -18,8 +18,6 @@
// If n <= 1, return n. If n is a power of 2, return n.
// Otherwise, return the next power of 2.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__hash_table>
#include <cassert>
#include <cstdint>
diff --git a/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp b/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp
index 44b0eb96e2b9b..c4daabb63e4cf 100644
--- a/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp
+++ b/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp
@@ -16,8 +16,6 @@
// If n == 0, return 0, else return the lowest prime greater than or equal to n
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__hash_table>
#include <cassert>
#include <cstddef>
diff --git a/libcxx/test/libcxx/depr/depr.c.headers/extern_c.pass.cpp b/libcxx/test/libcxx/depr/depr.c.headers/extern_c.pass.cpp
index f756aacbc1cd5..d0ac71739d7e3 100644
--- a/libcxx/test/libcxx/depr/depr.c.headers/extern_c.pass.cpp
+++ b/libcxx/test/libcxx/depr/depr.c.headers/extern_c.pass.cpp
@@ -10,8 +10,6 @@
// that we don't want to support and can't support with LSV enabled.
// UNSUPPORTED: clang-modules-build
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// Sometimes C++'s <foo.h> headers get included within extern "C" contexts. This
// is ill-formed (no diagnostic required), per [using.headers]p3, but we permit
// it as an extension.
diff --git a/libcxx/test/libcxx/experimental/fexperimental-library.compile.pass.cpp b/libcxx/test/libcxx/experimental/fexperimental-library.compile.pass.cpp
index 3cf497da233fb..5449d735d875a 100644
--- a/libcxx/test/libcxx/experimental/fexperimental-library.compile.pass.cpp
+++ b/libcxx/test/libcxx/experimental/fexperimental-library.compile.pass.cpp
@@ -14,8 +14,6 @@
// ADDITIONAL_COMPILE_FLAGS: -fexperimental-library
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <version>
#if !_LIBCPP_HAS_EXPERIMENTAL_PSTL
diff --git a/libcxx/test/libcxx/header_inclusions.gen.py b/libcxx/test/libcxx/header_inclusions.gen.py
index e00cf180d17ad..d1a413a6b463c 100644
--- a/libcxx/test/libcxx/header_inclusions.gen.py
+++ b/libcxx/test/libcxx/header_inclusions.gen.py
@@ -46,7 +46,6 @@
print(
f"""\
//--- {header}.compile.pass.cpp
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
{lit_header_restrictions.get(header, '')}
{lit_header_undeprecations.get(header, '')}
diff --git a/libcxx/test/libcxx/input.output/string.streams/stringbuf/const_sso_buffer.pass.cpp b/libcxx/test/libcxx/input.output/string.streams/stringbuf/const_sso_buffer.pass.cpp
index 2b6c3802a56b6..d6caa3389b8fa 100644
--- a/libcxx/test/libcxx/input.output/string.streams/stringbuf/const_sso_buffer.pass.cpp
+++ b/libcxx/test/libcxx/input.output/string.streams/stringbuf/const_sso_buffer.pass.cpp
@@ -8,8 +8,6 @@
// <sstream>
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// How the constructors of basic_stringbuf initialize the buffer pointers is
// not specified. For some constructors it's implementation defined whether the
// pointers are set to nullptr. Libc++'s implementation directly uses the SSO
diff --git a/libcxx/test/libcxx/iterators/aliasing_iterator.pass.cpp b/libcxx/test/libcxx/iterators/aliasing_iterator.pass.cpp
index 33774578e2337..60587d5bfe5d7 100644
--- a/libcxx/test/libcxx/iterators/aliasing_iterator.pass.cpp
+++ b/libcxx/test/libcxx/iterators/aliasing_iterator.pass.cpp
@@ -8,8 +8,6 @@
// ADDITIONAL_COMPILE_FLAGS(clang): -Wprivate-header
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__iterator/aliasing_iterator.h>
#include <cassert>
diff --git a/libcxx/test/libcxx/iterators/bounded_iter/arithmetic.pass.cpp b/libcxx/test/libcxx/iterators/bounded_iter/arithmetic.pass.cpp
index 3fc735b441676..45d0cc3b95f90 100644
--- a/libcxx/test/libcxx/iterators/bounded_iter/arithmetic.pass.cpp
+++ b/libcxx/test/libcxx/iterators/bounded_iter/arithmetic.pass.cpp
@@ -11,8 +11,6 @@
//
// Arithmetic operators
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__iterator/bounded_iter.h>
#include <cstddef>
diff --git a/libcxx/test/libcxx/iterators/bounded_iter/comparison.pass.cpp b/libcxx/test/libcxx/iterators/bounded_iter/comparison.pass.cpp
index a12b77afa0db0..cef2157469c8f 100644
--- a/libcxx/test/libcxx/iterators/bounded_iter/comparison.pass.cpp
+++ b/libcxx/test/libcxx/iterators/bounded_iter/comparison.pass.cpp
@@ -11,8 +11,6 @@
//
// Comparison operators
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <concepts>
#include <__iterator/bounded_iter.h>
diff --git a/libcxx/test/libcxx/iterators/bounded_iter/pointer_traits.pass.cpp b/libcxx/test/libcxx/iterators/bounded_iter/pointer_traits.pass.cpp
index 22ad8c6706d6f..bfd779d644f51 100644
--- a/libcxx/test/libcxx/iterators/bounded_iter/pointer_traits.pass.cpp
+++ b/libcxx/test/libcxx/iterators/bounded_iter/pointer_traits.pass.cpp
@@ -11,8 +11,6 @@
//
// std::pointer_traits specialization
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__iterator/bounded_iter.h>
#include <cassert>
#include <cstddef>
diff --git a/libcxx/test/libcxx/iterators/bounded_iter/types.compile.pass.cpp b/libcxx/test/libcxx/iterators/bounded_iter/types.compile.pass.cpp
index d205c5b03ee3f..56ded9ae5ed21 100644
--- a/libcxx/test/libcxx/iterators/bounded_iter/types.compile.pass.cpp
+++ b/libcxx/test/libcxx/iterators/bounded_iter/types.compile.pass.cpp
@@ -11,8 +11,6 @@
//
// Nested types
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__iterator/bounded_iter.h>
#include <cstddef>
#include <iterator>
diff --git a/libcxx/test/libcxx/iterators/contiguous_iterators.conv.compile.pass.cpp b/libcxx/test/libcxx/iterators/contiguous_iterators.conv.compile.pass.cpp
index 4d3690953070f..372559594143e 100644
--- a/libcxx/test/libcxx/iterators/contiguous_iterators.conv.compile.pass.cpp
+++ b/libcxx/test/libcxx/iterators/contiguous_iterators.conv.compile.pass.cpp
@@ -15,8 +15,6 @@
// Verify that libc++-wrapped iterators do not permit slicing conversion or construction.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <array>
#include <span>
#include <type_traits>
diff --git a/libcxx/test/libcxx/iterators/contiguous_iterators.verify.cpp b/libcxx/test/libcxx/iterators/contiguous_iterators.verify.cpp
index ba2697c78986c..479d40a5eb088 100644
--- a/libcxx/test/libcxx/iterators/contiguous_iterators.verify.cpp
+++ b/libcxx/test/libcxx/iterators/contiguous_iterators.verify.cpp
@@ -11,8 +11,6 @@
// __bounded_iter<_Iter>
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// Verify that __bounded_iter does not accept non-contiguous iterators as determined by __libcpp_is_contiguous_iterator.
// static_assert should be used, see https://github.com/llvm/llvm-project/issues/115002.
// __wrap_iter cannot be so handled because it may directly wrap user-defined fancy pointers in libc++'s vector.
diff --git a/libcxx/test/libcxx/iterators/iterator.primitives/iterator.operations/prev.verify.cpp b/libcxx/test/libcxx/iterators/iterator.primitives/iterator.operations/prev.verify.cpp
index ffef687723983..da0a336815a5c 100644
--- a/libcxx/test/libcxx/iterators/iterator.primitives/iterator.operations/prev.verify.cpp
+++ b/libcxx/test/libcxx/iterators/iterator.primitives/iterator.operations/prev.verify.cpp
@@ -8,8 +8,6 @@
// std::prev
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <iterator>
#include "test_iterators.h"
diff --git a/libcxx/test/libcxx/language.support/support.dynamic/libcpp_deallocate.sh.cpp b/libcxx/test/libcxx/language.support/support.dynamic/libcpp_deallocate.sh.cpp
index 7ead65caf9fda..4bb42cb532078 100644
--- a/libcxx/test/libcxx/language.support/support.dynamic/libcpp_deallocate.sh.cpp
+++ b/libcxx/test/libcxx/language.support/support.dynamic/libcpp_deallocate.sh.cpp
@@ -21,8 +21,6 @@
// GCC doesn't support the aligned-allocation flags.
// XFAIL: gcc
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// RUN: %{build} -faligned-allocation -fsized-deallocation
// RUN: %{run}
// RUN: %{build} -faligned-allocation -fno-sized-deallocation -DNO_SIZE
diff --git a/libcxx/test/libcxx/memory/allocation_guard.pass.cpp b/libcxx/test/libcxx/memory/allocation_guard.pass.cpp
index 20c05b381ef0e..493ebf044187c 100644
--- a/libcxx/test/libcxx/memory/allocation_guard.pass.cpp
+++ b/libcxx/test/libcxx/memory/allocation_guard.pass.cpp
@@ -12,8 +12,6 @@
// To allow checking that self-move works correctly.
// ADDITIONAL_COMPILE_FLAGS: -Wno-self-move
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// template<class _Alloc>
// struct __allocation_guard;
diff --git a/libcxx/test/libcxx/memory/swap_allocator.pass.cpp b/libcxx/test/libcxx/memory/swap_allocator.pass.cpp
index f70f8134d1dda..311660290eaef 100644
--- a/libcxx/test/libcxx/memory/swap_allocator.pass.cpp
+++ b/libcxx/test/libcxx/memory/swap_allocator.pass.cpp
@@ -7,8 +7,6 @@
//===----------------------------------------------------------------------===//
//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// <memory>
// template <typename _Alloc>
diff --git a/libcxx/test/libcxx/numerics/bit.ops.pass.cpp b/libcxx/test/libcxx/numerics/bit.ops.pass.cpp
index 1bf9d3890f45f..7f502d6e01d1e 100644
--- a/libcxx/test/libcxx/numerics/bit.ops.pass.cpp
+++ b/libcxx/test/libcxx/numerics/bit.ops.pass.cpp
@@ -9,8 +9,6 @@
// Test the __XXXX routines in the <bit> header.
// These are not supposed to be exhaustive tests, just sanity checks.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__bit/bit_log2.h>
#include <__bit/countl.h>
#include <__bit/rotate.h>
diff --git a/libcxx/test/libcxx/numerics/clamp_to_integral.pass.cpp b/libcxx/test/libcxx/numerics/clamp_to_integral.pass.cpp
index 68d55afa1f280..aed78f9cddf84 100644
--- a/libcxx/test/libcxx/numerics/clamp_to_integral.pass.cpp
+++ b/libcxx/test/libcxx/numerics/clamp_to_integral.pass.cpp
@@ -12,8 +12,6 @@
// closest representable value for the specified integer type, or
// numeric_limits<IntT>::max()/min() if the value isn't representable.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__random/clamp_to_integral.h>
#include <cassert>
#include <cmath>
diff --git a/libcxx/test/libcxx/numerics/complex.number/cmplx.over.pow.pass.cpp b/libcxx/test/libcxx/numerics/complex.number/cmplx.over.pow.pass.cpp
index d87e259cefe39..6d5a4c556ca76 100644
--- a/libcxx/test/libcxx/numerics/complex.number/cmplx.over.pow.pass.cpp
+++ b/libcxx/test/libcxx/numerics/complex.number/cmplx.over.pow.pass.cpp
@@ -8,8 +8,6 @@
// <complex>
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// template<class T, class U> complex<__promote_t<T, U>> pow(const complex<T>&, const U&);
// template<class T, class U> complex<__promote_t<T, U>> pow(const complex<T>&, const complex<U>&);
// template<class T, class U> complex<__promote_t<T, U>> pow(const T&, const complex<U>&);
diff --git a/libcxx/test/libcxx/selftest/test_macros.pass.cpp b/libcxx/test/libcxx/selftest/test_macros.pass.cpp
index 9bcf7cf9a31f5..59c3480b47403 100644
--- a/libcxx/test/libcxx/selftest/test_macros.pass.cpp
+++ b/libcxx/test/libcxx/selftest/test_macros.pass.cpp
@@ -8,8 +8,6 @@
//
// Test the "test_macros.h" header.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__config>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/strings/basic.string/string.capacity/max_size.pass.cpp b/libcxx/test/libcxx/strings/basic.string/string.capacity/max_size.pass.cpp
index 7b3f81e21d8a8..6bfcb5d4bfcd8 100644
--- a/libcxx/test/libcxx/strings/basic.string/string.capacity/max_size.pass.cpp
+++ b/libcxx/test/libcxx/strings/basic.string/string.capacity/max_size.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// <string>
// This test ensures that the correct max_size() is returned depending on the platform.
diff --git a/libcxx/test/libcxx/strings/c.strings/constexpr_memmove.pass.cpp b/libcxx/test/libcxx/strings/c.strings/constexpr_memmove.pass.cpp
index 2009cbe28a91f..bdc18448d03a4 100644
--- a/libcxx/test/libcxx/strings/c.strings/constexpr_memmove.pass.cpp
+++ b/libcxx/test/libcxx/strings/c.strings/constexpr_memmove.pass.cpp
@@ -19,8 +19,6 @@
// and is_trivially_XXX_assignable), so we use some funky types to test these
// corner cases.
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__string/constexpr_c_functions.h>
#include <cassert>
#include <cstdint>
diff --git a/libcxx/test/libcxx/system_reserved_names.gen.py b/libcxx/test/libcxx/system_reserved_names.gen.py
index a4f2928eda332..f8589f2beaae3 100644
--- a/libcxx/test/libcxx/system_reserved_names.gen.py
+++ b/libcxx/test/libcxx/system_reserved_names.gen.py
@@ -29,8 +29,6 @@
{lit_header_restrictions.get(header, '')}
{lit_header_undeprecations.get(header, '')}
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
// This is required to detect the platform we're building for below.
#include <__config>
diff --git a/libcxx/test/libcxx/transitive_includes.gen.py b/libcxx/test/libcxx/transitive_includes.gen.py
index 6f99240436632..f01dbac26a8e8 100644
--- a/libcxx/test/libcxx/transitive_includes.gen.py
+++ b/libcxx/test/libcxx/transitive_includes.gen.py
@@ -90,8 +90,6 @@
// TODO: Figure out why <stdatomic.h> doesn't work on FreeBSD
// UNSUPPORTED: LIBCXX-FREEBSD-FIXME
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
// RUN: mkdir %t
// RUN: %{{cxx}} %s %{{flags}} %{{compile_flags}} --trace-includes -fshow-skipped-includes --preprocess > /dev/null 2> %t/trace-includes.txt
// RUN: %{{python}} %{{libcxx-dir}}/test/libcxx/transitive_includes/to_csv.py %t/trace-includes.txt > %t/actual_transitive_includes.csv
diff --git a/libcxx/test/libcxx/type_traits/datasizeof.compile.pass.cpp b/libcxx/test/libcxx/type_traits/datasizeof.compile.pass.cpp
index 67a4dccb0f5fe..51e3a8534baea 100644
--- a/libcxx/test/libcxx/type_traits/datasizeof.compile.pass.cpp
+++ b/libcxx/test/libcxx/type_traits/datasizeof.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__type_traits/datasizeof.h>
#include <cstdint>
#include <type_traits>
diff --git a/libcxx/test/libcxx/type_traits/desugars_to.compile.pass.cpp b/libcxx/test/libcxx/type_traits/desugars_to.compile.pass.cpp
index 4ed6d15ee9e95..9134ac027d1ed 100644
--- a/libcxx/test/libcxx/type_traits/desugars_to.compile.pass.cpp
+++ b/libcxx/test/libcxx/type_traits/desugars_to.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
// This test requires variable templates
// UNSUPPORTED: gcc && c++11
diff --git a/libcxx/test/libcxx/type_traits/is_constant_evaluated.pass.cpp b/libcxx/test/libcxx/type_traits/is_constant_evaluated.pass.cpp
index a538c52a534e7..5a779c0e96e21 100644
--- a/libcxx/test/libcxx/type_traits/is_constant_evaluated.pass.cpp
+++ b/libcxx/test/libcxx/type_traits/is_constant_evaluated.pass.cpp
@@ -14,8 +14,6 @@
// returns false when there's no constant evaluation support from the compiler.
// as well as when called not in a constexpr context
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__type_traits/is_constant_evaluated.h>
#include <cassert>
diff --git a/libcxx/test/libcxx/type_traits/is_replaceable.compile.pass.cpp b/libcxx/test/libcxx/type_traits/is_replaceable.compile.pass.cpp
index 7735538cccae4..546240a6c3286 100644
--- a/libcxx/test/libcxx/type_traits/is_replaceable.compile.pass.cpp
+++ b/libcxx/test/libcxx/type_traits/is_replaceable.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__type_traits/is_replaceable.h>
#include <array>
#include <deque>
diff --git a/libcxx/test/libcxx/type_traits/is_trivially_comparable.compile.pass.cpp b/libcxx/test/libcxx/type_traits/is_trivially_comparable.compile.pass.cpp
index e9b53080fcd6d..e2be399456b1b 100644
--- a/libcxx/test/libcxx/type_traits/is_trivially_comparable.compile.pass.cpp
+++ b/libcxx/test/libcxx/type_traits/is_trivially_comparable.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__type_traits/conditional.h>
#include <__type_traits/is_equality_comparable.h>
#include <__type_traits/is_signed.h>
diff --git a/libcxx/test/libcxx/type_traits/is_trivially_relocatable.compile.pass.cpp b/libcxx/test/libcxx/type_traits/is_trivially_relocatable.compile.pass.cpp
index 8066925f2900a..c462672616f77 100644
--- a/libcxx/test/libcxx/type_traits/is_trivially_relocatable.compile.pass.cpp
+++ b/libcxx/test/libcxx/type_traits/is_trivially_relocatable.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__type_traits/is_trivially_relocatable.h>
#include <array>
#include <deque>
diff --git a/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp b/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp
index fb51a4bf4ed27..f6b8a29d36821 100644
--- a/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp
+++ b/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp
@@ -9,8 +9,6 @@
// This test relies on `typeid` and thus requires `-frtti`.
// UNSUPPORTED: no-rtti
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// Make sure that we don't get ODR violations with __exception_guard when
// linking together TUs compiled with different values of -f[no-]exceptions.
diff --git a/libcxx/test/libcxx/utilities/function.objects/refwrap/desugars_to.compile.pass.cpp b/libcxx/test/libcxx/utilities/function.objects/refwrap/desugars_to.compile.pass.cpp
index 1ce88feeadf28..aa6bf85a1a40d 100644
--- a/libcxx/test/libcxx/utilities/function.objects/refwrap/desugars_to.compile.pass.cpp
+++ b/libcxx/test/libcxx/utilities/function.objects/refwrap/desugars_to.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
// This test requires variable templates
// UNSUPPORTED: gcc && c++11
diff --git a/libcxx/test/libcxx/utilities/is_pointer_in_range.pass.cpp b/libcxx/test/libcxx/utilities/is_pointer_in_range.pass.cpp
index b0a27c79287d4..fc4d3a9800d11 100644
--- a/libcxx/test/libcxx/utilities/is_pointer_in_range.pass.cpp
+++ b/libcxx/test/libcxx/utilities/is_pointer_in_range.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__utility/is_pointer_in_range.h>
#include <cassert>
diff --git a/libcxx/test/libcxx/utilities/is_valid_range.pass.cpp b/libcxx/test/libcxx/utilities/is_valid_range.pass.cpp
index cb800aee5674b..345e2feeda81c 100644
--- a/libcxx/test/libcxx/utilities/is_valid_range.pass.cpp
+++ b/libcxx/test/libcxx/utilities/is_valid_range.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__utility/is_valid_range.h>
#include <cassert>
diff --git a/libcxx/test/libcxx/utilities/meta/is_referenceable.compile.pass.cpp b/libcxx/test/libcxx/utilities/meta/is_referenceable.compile.pass.cpp
index 0991de69b5baf..c230f6e16e0a2 100644
--- a/libcxx/test/libcxx/utilities/meta/is_referenceable.compile.pass.cpp
+++ b/libcxx/test/libcxx/utilities/meta/is_referenceable.compile.pass.cpp
@@ -14,8 +14,6 @@
// or a ref-qualifier, or a reference type.
//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <type_traits>
#include <cassert>
diff --git a/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp b/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp
index 66c25b1d75638..89f08088921d5 100644
--- a/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp
+++ b/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp
@@ -7,8 +7,6 @@
//===----------------------------------------------------------------------===//
//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include "test_macros.h"
TEST_CLANG_DIAGNOSTIC_IGNORED("-Wprivate-header")
diff --git a/libcxx/test/libcxx/utilities/no_destroy.pass.cpp b/libcxx/test/libcxx/utilities/no_destroy.pass.cpp
index 8693bb17089dc..9a874a6407537 100644
--- a/libcxx/test/libcxx/utilities/no_destroy.pass.cpp
+++ b/libcxx/test/libcxx/utilities/no_destroy.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <__utility/no_destroy.h>
#include <cassert>
diff --git a/libcxx/test/libcxx/utilities/template.bitset/includes.pass.cpp b/libcxx/test/libcxx/utilities/template.bitset/includes.pass.cpp
index ae8464ac946a9..214b0eff8d9d2 100644
--- a/libcxx/test/libcxx/utilities/template.bitset/includes.pass.cpp
+++ b/libcxx/test/libcxx/utilities/template.bitset/includes.pass.cpp
@@ -8,8 +8,6 @@
// test that <bitset> includes <string>, <stdexcept> and <iosfwd>
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
#include <bitset>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/utilities/utility/private_constructor_tag.compile.pass.cpp b/libcxx/test/libcxx/utilities/utility/private_constructor_tag.compile.pass.cpp
index 1644819a02f7f..7743f507b2513 100644
--- a/libcxx/test/libcxx/utilities/utility/private_constructor_tag.compile.pass.cpp
+++ b/libcxx/test/libcxx/utilities/utility/private_constructor_tag.compile.pass.cpp
@@ -6,8 +6,6 @@
//
//===----------------------------------------------------------------------===//
-// XFAIL: FROZEN-CXX03-HEADERS-FIXME
-
// struct __private_constructor_tag{};
// The private constructor tag is intended to be a trivial type that can easily
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