Reported VSO-1663233 "/clr C++20 rejects <coroutine> with error C3861 "'__builtin_coro_done': identifier not found" instead of falling back to native codegen".

Author: StephanTLavavej

stl/inc/yvals_core.h

@@ -1542,9 +1542,9 @@ _EMIT_STL_ERROR(STL1004, "C++98 unexpected() is incompatible with C++23 unexpect
 #define __cpp_lib_char8_t 201907L
 #endif // __cpp_char8_t
 
-#ifdef __cpp_impl_coroutine
+#if defined(__cpp_impl_coroutine) && !defined(_M_CEE) // TRANSITION, VSO-1663233
 #define __cpp_lib_coroutine 201902L
-#endif // __cpp_impl_coroutine
+#endif // defined(__cpp_impl_coroutine) && !defined(_M_CEE)
 
 #if _HAS_CXX20
 #if !defined(__EDG__) || defined(__INTELLISENSE__) // TRANSITION, GH-395

tests/std/tests/GH_000545_include_compare/test_coroutine.cpp

@@ -1,10 +1,12 @@
 // Copyright (c) Microsoft Corporation.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
+#ifndef _M_CEE // TRANSITION, VSO-1663233
 #include <coroutine>
 
 // Testing LWG-3330 "Include <compare> from most library headers" by intentionally NOT including <compare>
 
 static_assert(std::is_eq(std::partial_ordering::equivalent));
+#endif // _M_CEE
 
 void test_coroutine() {}

tests/std/tests/P0912R5_coroutine/env.lst

@@ -19,8 +19,9 @@ PM_CL="/EHsc /MD /std:c++latest /permissive"
 PM_CL="/EHsc /MD /std:c++latest /permissive-"
 PM_CL="/EHsc /MTd /std:c++latest /permissive- /Zc:preprocessor"
 PM_CL="/EHsc /MD /std:c++latest /permissive- /analyze:only /analyze:autolog-"
-PM_CL="/clr /MD /std:c++20 /d1clrcxxstd"
-PM_CL="/clr /MDd /std:c++20 /d1clrcxxstd"
+# TRANSITION, VSO-1663233
+# PM_CL="/clr /MD /std:c++20 /d1clrcxxstd"
+# PM_CL="/clr /MDd /std:c++20 /d1clrcxxstd"
 PM_CL="/BE /c /EHsc /MD /std:c++20 /permissive-"
 PM_CL="/BE /c /EHsc /MTd /std:c++latest /permissive-"
 PM_COMPILER="clang-cl" PM_CL="-fno-ms-compatibility -fno-delayed-template-parsing -Wno-unqualified-std-cast-call /EHsc /MD /std:c++20 /permissive-"

tests/std/tests/VSO_0157762_feature_test_macros/test.compile.pass.cpp

@@ -704,7 +704,7 @@ STATIC_ASSERT(__cpp_lib_containers_ranges == 202202L);
 #endif
 #endif
 
-#ifdef __cpp_impl_coroutine
+#if defined(__cpp_impl_coroutine) && !defined(_M_CEE) // TRANSITION, VSO-1663233
 #ifndef __cpp_lib_coroutine
 #error __cpp_lib_coroutine is not defined
 #elif __cpp_lib_coroutine != 201902L