================
@@ -1342,8 +1342,10 @@ static void InitializePredefinedMacros(const TargetInfo
&TI,
getLockFreeValue(TI.get##Type##Width(), TI));
DEFINE_LOCK_FREE_MACRO(BOOL, Bool);
DEFINE_LOCK_FREE_MACRO(CHAR, Char);
- if (LangOpts.Char8)
- DEFINE_LOCK_FREE_MACRO(CHAR8_T, Char); // Treat char8_t like char.
+ // char8_t has the same representation / width as unsigned
+ // char in C++ and is a typedef for unsigned char in C23
+ if (LangOpts.Char8 || LangOpts.C23)
----------------
MitalAshok wrote:
Looks like that also controls if `char8_t` is a keyword/builtin type, which it
isn't in C23. (`LangOpts.Char8` is also false in C++20 with `-fno-char8_t`)
https://github.com/llvm/llvm-project/pull/97208
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