tahonermann requested changes to this revision. tahonermann added a comment. This revision now requires changes to proceed.
When submitting patches, please create the diff with context so that the code can be navigated in Phabricator. See https://llvm.org/docs/Phabricator.html#phabricator-request-review-web for details on how to do so. ================ Comment at: clang/lib/Lex/LiteralSupport.cpp:1600 - llvm::APInt LitVal(PP.getTargetInfo().getIntWidth(), 0); + llvm::APInt LitVal(PP.getTargetInfo().getChar32Width(), 0); ---------------- I don't think this is quite right. For the code that follows this change to work as intended and issue the "Character constant too long for its type" diagnostic, the width needs to match that of `int`. This is required for multicharacter literals (they have type `int`) so that an appropriate diagnostic is issued for `'xxxxx'` for targets that have a 32-bit int (or for `'xxx'` for targets that have a 16-bit int)`. Additionally, the type of a character constant in C is `int`. I think what is needed is something like: unsigned BitWidth = getCharWidth(Kind, PP.getTargetInfo()); if (IsMultiChar || !PP.getLangOpts().CPlusPlus) BitWidth = PP.getTargetInfo().getIntWidth(); llvm::APInt LitVal(BitWidth, 0); Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D127363/new/ https://reviews.llvm.org/D127363 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
