Author: Nathan Sidwell Date: 2022-04-06T11:13:32-07:00 New Revision: 482fad4a3fcb013aa19e97661e3d66583d026bb8
URL: https://github.com/llvm/llvm-project/commit/482fad4a3fcb013aa19e97661e3d66583d026bb8 DIFF: https://github.com/llvm/llvm-project/commit/482fad4a3fcb013aa19e97661e3d66583d026bb8.diff LOG: [clang][DOC] Document module mangler changes Note that the mangling has changed and the demangler's learnt a new trick. Obviously dependent upon the mangler and demangler patches. Reviewed By: bruno Differential Revision: https://reviews.llvm.org/D123141 Added: Modified: clang/docs/ReleaseNotes.rst Removed: ################################################################################ diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index bf592329ac02a..df6a7d7539ee6 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -201,6 +201,13 @@ C++20 Feature Support - Implemented `__builtin_source_location()` which enables library support for std::source_location. +- The mangling scheme for C++20 modules has incompatibly changed. The + initial mangling was discovered not to be reversible, and the weak + ownership design decision did not give the backwards compatibility + that was hoped for. C++20 since added ``extern "C++"`` semantics + that can be used for such compatibility. The demangler now demangles + symbols with named module attachment. + C++2b Feature Support ^^^^^^^^^^^^^^^^^^^^^ _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
