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[Clang][NFC] Mark P2552 as implemented. #92007

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Merged
merged 2 commits into from
May 14, 2024
Merged

[Clang][NFC] Mark P2552 as implemented. #92007

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0829867
[Clang] Mark P2552 as implemented.
cor3ntin May 13, 2024
da3c683
Fix tests
cor3ntin May 13, 2024
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20 changes: 20 additions & 0 deletions clang/test/SemaCXX/cxx2c-attributes.cpp
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@@ -0,0 +1,20 @@
// RUN: %clang_cc1 %s -x c++ -std=c++11 -triple x86_64-pc-linux -fsyntax-only -verify -Wno-c++17-extensions
// RUN: %clang_cc1 %s -x c++ -std=c++11 -triple x86_64-windows-msvc -fsyntax-only -verify=msvc -Wno-c++17-extensions
// expected-no-diagnostics

// Check we return non-zero values for supported attributes as per
// wg21.link/P2552
static_assert(__has_cpp_attribute(assume));

// The standard does not prescribe a behavior for [[carries_dependency]]

static_assert(__has_cpp_attribute(deprecated));
static_assert(__has_cpp_attribute(fallthrough));
static_assert(__has_cpp_attribute(likely));
static_assert(__has_cpp_attribute(unlikely));
static_assert(__has_cpp_attribute(maybe_unused));
static_assert(__has_cpp_attribute(nodiscard));
static_assert(__has_cpp_attribute(noreturn));

// We do not support [[no_unique_address]] in MSVC emulation mode
static_assert(__has_cpp_attribute(no_unique_address)); // msvc-error {{static assertion failed}}
2 changes: 1 addition & 1 deletion clang/www/cxx_status.html
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Expand Up @@ -130,7 +130,7 @@ <h2 id="cxx26">C++2c implementation status</h2>
<tr>
<td>On the ignorability of standard attributes</td>
<td><a href="https://wg21.link/P2552R3">P2552R3</a> (<a href="#dr">DR</a>)</td>
<td class="none" align="center">No</td>
<td class="full" align="center">Yes</td>
</tr>
<tr>
<td>Static storage for braced initializers</td>
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