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This changes the TemplateArgument representation to hold a flag indicating whether a template argument of expression type is supposed to be canonical or not. This gets one step closer to solving https://github.com/llvm/llvm-project/issues/92292 This still doesn't try to unique as-written TSTs. While this would increase the amount of memory savings and make code dealing with the AST more well-behaved, profiling template argument lists is still too expensive for this to be worthwhile, at least for now. Without this uniquing, this patch stands neutral in terms of performance impact. This also fixes the context creation of TSTs, so that they don't in some cases get incorrectly flagged as sugar over their own canonical form. This is captured in the test expectation change of some AST dumps. This fixes some places which were unnecessarily canonicalizing these TSTs.
//===----------------------------------------------------------------------===// // Clang Tools repository //===----------------------------------------------------------------------===// Welcome to the repository of extra Clang Tools. This repository holds tools that are developed as part of the LLVM compiler infrastructure project and the Clang frontend. These tools are kept in a separate "extra" repository to allow lighter weight checkouts of the core Clang codebase. All discussion regarding Clang, Clang-based tools, and code in this repository should be held using the standard Clang forum: https://discourse.llvm.org/c/clang Code review for this tree should take place on the standard Clang patch and commit lists: http://lists.llvm.org/mailman/listinfo/cfe-commits If you find a bug in these tools, please file it in the LLVM bug tracker: https://github.com/llvm/llvm-project/issues/