[libcxx-commits] [clang] [libcxx] [Clang][WIP] Normalize constraints before checking for satisfaction (PR #141776)

[Younan Zhang via libcxx-commits]

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@@ -6041,6 +6069,19 @@ bool Sema::CheckTemplateArgumentList(
         return true;
       }
 
+      // For constraint parameter mapping, we have already built a pack in
+      // TransformTemplateArguments
+      // if (inParameterMappingSubstitution()) {
+      //   llvm::copy(SugaredArgumentPack,
+      //   std::back_inserter(CTAI.SugaredConverted));
+      //   SugaredArgumentPack.clear();
+      //   llvm::copy(CanonicalArgumentPack,
+      //   std::back_inserter(CTAI.CanonicalConverted));
+      //   CanonicalArgumentPack.clear();
+      //   ++Param;
+      //   continue;
+      // }
+
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zyn0217 wrote:

dead code :(

https://github.com/llvm/llvm-project/pull/141776