https://github.com/zyn0217 created https://github.com/llvm/llvm-project/pull/87768
None >From eb6c961896646a62f334284093994160d8c0e38e Mon Sep 17 00:00:00 2001 From: Younan Zhang <zyn7...@gmail.com> Date: Fri, 5 Apr 2024 19:12:28 +0800 Subject: [PATCH] [clang][Sema] Avoid guessing unexpanded packs' size in getFullyPackExpandedSize --- clang/lib/Sema/SemaTemplateVariadic.cpp | 3 +++ 1 file changed, 3 insertions(+) diff --git a/clang/lib/Sema/SemaTemplateVariadic.cpp b/clang/lib/Sema/SemaTemplateVariadic.cpp index 903fbfd18e779c..f26771c64074b3 100644 --- a/clang/lib/Sema/SemaTemplateVariadic.cpp +++ b/clang/lib/Sema/SemaTemplateVariadic.cpp @@ -1243,7 +1243,10 @@ std::optional<unsigned> Sema::getFullyPackExpandedSize(TemplateArgument Arg) { // expanded this pack expansion into the enclosing pack if we could. if (Elem.isPackExpansion()) return std::nullopt; + if (Elem.containsUnexpandedParameterPack()) + return std::nullopt; } + // llvm::errs() << "Optimization takes effect: " << Pack.pack_size() << "\n"; return Pack.pack_size(); } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits