[PATCH] D101793: [clang][AST] Improve AST Reader/Writer memory footprint

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl added a comment.

Decls in Sema::DeclsToCheckForDeferredDiags is supposed to be unique. Therefore the fact that '1,734,387,685 out of 1,734,404,000 elements are the same' is surprising. Did this happen when you compile the source code and write AST? What language was the source code? C++, OpenMP, or CUDA? What was the decl that got duplicated? Thanks.


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https://reviews.llvm.org/D101793