Merge pull request #80552 from DougGregor/resurrect-allow-unsafe-attribute-6.2

Author: DougGregor

Runtimes/Core/cmake/modules/ExperimentalFeatures.cmake

@@ -10,4 +10,5 @@ add_compile_options(
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature FreestandingMacros>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature BitwiseCopyable>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature Extern>"
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature AllowUnsafeAttribute>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature ValueGenerics>")

stdlib/public/Concurrency/CMakeLists.txt

@@ -66,6 +66,7 @@ list(APPEND SWIFT_RUNTIME_CONCURRENCY_SWIFT_FLAGS
   )
 
 list(APPEND SWIFT_RUNTIME_CONCURRENCY_SWIFT_FLAGS "-strict-memory-safety")
+list(APPEND SWIFT_RUNTIME_CONCURRENCY_SWIFT_FLAGS "-enable-experimental-feature" "AllowUnsafeAttribute")
 
 list(APPEND SWIFT_RUNTIME_CONCURRENCY_C_FLAGS
   "-D__STDC_WANT_LIB_EXT1__=1")

stdlib/public/Cxx/CMakeLists.txt

@@ -23,6 +23,7 @@ add_swift_target_library(swiftCxx STATIC NO_LINK_NAME IS_STDLIB IS_SWIFT_ONLY
     -cxx-interoperability-mode=default
     -enable-experimental-feature Span
     -enable-experimental-feature BuiltinModule
+    -enable-experimental-feature AllowUnsafeAttribute
     -strict-memory-safety
     # This module should not pull in the C++ standard library, so we disable it explicitly.
     # For functionality that depends on the C++ stdlib, use C++ stdlib overlay (`swiftstd` module).

stdlib/public/Cxx/std/CMakeLists.txt

@@ -60,6 +60,7 @@ add_swift_target_library(swiftCxxStdlib STATIC NO_LINK_NAME IS_STDLIB IS_SWIFT_O
     # using C++ symbols in resilient overlays (see f4204568).
     -enable-experimental-feature AssumeResilientCxxTypes
 
+    -enable-experimental-feature AllowUnsafeAttribute
     -strict-memory-safety
 
     # The varying modularization of the C++ standard library on different

stdlib/public/Distributed/CMakeLists.txt

@@ -52,6 +52,7 @@ add_swift_target_library(swiftDistributed ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS
   SWIFT_COMPILE_FLAGS
     ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
     -parse-stdlib
+    -enable-experimental-feature AllowUnsafeAttribute
     -strict-memory-safety
 
   LINK_FLAGS

stdlib/public/SwiftOnoneSupport/CMakeLists.txt

@@ -7,7 +7,7 @@ set(swiftOnoneSupport_common_options
 
   "${SWIFT_SOURCE_DIR}/stdlib/linker-support/magic-symbols-for-install-name.c"
 
-  SWIFT_COMPILE_FLAGS "-parse-stdlib" "-Xllvm" "-sil-inline-generics=false" "-Xfrontend" "-validate-tbd-against-ir=none" "-Xfrontend" "-check-onone-completeness" "-Xfrontend" "-disable-access-control" "-strict-memory-safety" "${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS}" "${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}"
+  SWIFT_COMPILE_FLAGS "-parse-stdlib" "-Xllvm" "-sil-inline-generics=false" "-Xfrontend" "-validate-tbd-against-ir=none" "-Xfrontend" "-check-onone-completeness" "-Xfrontend" "-disable-access-control" "-strict-memory-safety" "-enable-experimental-feature" "AllowUnsafeAttribute" "${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS}" "${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}"
   LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS}")
 
 if(CMAKE_BUILD_TYPE STREQUAL "Debug" AND BOOTSTRAPPING_MODE STREQUAL "BOOTSTRAPPING")

stdlib/public/core/CMakeLists.txt

@@ -326,6 +326,7 @@ list(APPEND swift_stdlib_compile_flags "-enable-experimental-feature" "BitwiseCo
 list(APPEND swift_stdlib_compile_flags "-enable-experimental-feature" "ValueGenerics")
 list(APPEND swift_stdlib_compile_flags "-enable-experimental-feature" "AddressableParameters")
 list(APPEND swift_stdlib_compile_flags "-enable-experimental-feature" "AddressableTypes")
+list(APPEND swift_stdlib_compile_flags "-enable-experimental-feature" "AllowUnsafeAttribute")
 list(APPEND swift_stdlib_compile_flags "-strict-memory-safety")
 
 if("${SWIFT_NATIVE_SWIFT_TOOLS_PATH}" STREQUAL "")