================
@@ -4093,7 +4093,26 @@ void Parser::ParseDeclarationSpecifiers(
break;
case tok::kw_auto:
if (getLangOpts().CPlusPlus11 || getLangOpts().C23) {
- if (isKnownToBeTypeSpecifier(GetLookAheadToken(1))) {
+ auto MayBeTypeSpecifier = [&]() {
+ if (getLangOpts().C23 && DS.hasTypeSpecifier() &&
+ DS.getTypeSpecType() != DeclSpec::TST_auto &&
+ DS.getConstexprSpecifier() == ConstexprSpecKind::Unspecified)
+ return true;
+
+ unsigned I = 1;
+ while (true) {
----------------
AaronBallman wrote:
Outside of C23 mode, do we need to do this lookahead? e.g., should the code
path for C++ remain the same as it was before?
https://github.com/llvm/llvm-project/pull/177865
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