================
@@ -3426,6 +3428,27 @@ static void mergeParamDeclAttributes(ParmVarDecl
*newDecl,
diag::note_carries_dependency_missing_first_decl) << 1/*Param*/;
}
+ // C++26 [dcl.attr.indet]/p2:
+ // If a function parameter is declared with the indeterminate attribute, it
+ // shall be so declared in the first declaration of its function. If a
+ // function parameter is declared with the indeterminate attribute in the
+ // first declaration of its function in one translation unit and the same
+ // function is declared without the indeterminate attribute on the same
+ // parameter in its first declaration in another translation unit, the
program
+ // is ill-formed, no diagnostic required.
+ if (S.getLangOpts().CPlusPlus26) {
----------------
erichkeane wrote:
These are still valuable warnings in pre-26, IMO, we should apply this
attribute as an extension backwards.
https://github.com/llvm/llvm-project/pull/177614
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