================
@@ -1980,6 +1981,23 @@ static void handleWeakRefAttr(Sema &S, Decl *D, const
ParsedAttr &AL) {
D->addAttr(::new (S.Context) WeakRefAttr(S.Context, AL));
}
+// Mark alias/ifunc target as used. For C++, we look up the demangled name
+// ignoring parameters. This should handle the majority of use cases while
+// leaveing false positives for namespace scope names and false negatives in
+// the presence of overloads.
+static void markUsedForAliasOrIfunc(Sema &S, Decl *D, const ParsedAttr &AL,
+ StringRef Str) {
+ char *Demangled = llvm::itaniumDemangle(Str, /*ParseParams=*/false);
----------------
erichkeane wrote:
> Looks like there's `getLangOpts().CXXABI`. `TargetCXXABI::Microsoft` is the
> one that doesn't use itanium FWICT (looking at `ASTContext::createCXXABI`)
> And `TargetInfo::getCXXABI` (looking at `ASTContext::createMangleContext`).
> `isItaniumFamily` comes up, too.
Yep, Microsoft is the exception. We DO typically use
https://clang.llvm.org/doxygen/classclang_1_1TargetCXXABI.html to determine
which.
https://github.com/llvm/llvm-project/pull/87130
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