Author: Eli Friedman Date: 2025-06-17T15:27:41-07:00 New Revision: 3f33c8482fc0b8dd0d2596262ebd0ed73d41665d
URL: https://github.com/llvm/llvm-project/commit/3f33c8482fc0b8dd0d2596262ebd0ed73d41665d DIFF: https://github.com/llvm/llvm-project/commit/3f33c8482fc0b8dd0d2596262ebd0ed73d41665d.diff LOG: [clang] Add release note for int->enum conversion change. (#144407) This seems to be having some practical impact, so we should let people know. Added: Modified: clang/docs/ReleaseNotes.rst Removed: ################################################################################ diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index 6f28dbd03ca2a..12816eed2e8b5 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -65,8 +65,10 @@ C++ Specific Potentially Breaking Changes standard library already have their own bespoke builtins. - A workaround for libstdc++4.7 has been removed. Note that 4.8.3 remains the oldest supported libstdc++ version. - - Added ``!nonnull/!align`` metadata to load of references for better codegen. +- Checking for int->enum conversions in constant expressions is more strict; + in particular, ``const E x = (E)-1;`` is not treated as a constant if it's + out of range. This impacts old versions of Boost. (#GH143034) ABI Changes in This Version --------------------------- _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
