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Author SHA1 Message Date
Chuanqi Xu
62b5e55512 Revert "[Serialization] Don't try to complete the redeclaration chain in" 
Close https://github.com/llvm/llvm-project/issues/62705

This reverts commit cf47e9fe86aa65b74b0476a5ad4d036dd7463bfb. This
introduces a breaking change in
https://github.com/llvm/llvm-project/issues/62705. Revert this one to
fix it quickly.
 2023-05-15 11:19:17 +08:00
Chuanqi Xu
cf47e9fe86 [Serialization] Don't try to complete the redeclaration chain in 
ASTReader after we start writing

This is intended to mitigate
https://github.com/llvm/llvm-project/issues/61447.

Before the patch, it takes 5s to compile test.cppm in the above
reproducer. After the patch it takes 3s to compile it. Although this
patch didn't solve the problem completely, it should mitigate the
problem for sure. Noted that the behavior of the patch is consistent
with the comment of the originally empty function
ASTReader::finalizeForWriting. So the change should be consistent with
the original design.
 2023-05-12 14:28:58 +08:00
Chuanqi Xu
5b769ff3e6 [NFC] Add an invalid test case for C++20 Modules 
Address https://github.com/llvm/llvm-project/issues/61150.

The test is intended to show the polluted operator&& will affect the ODR
checking and the ODR checking here is correct.
 2023-03-06 14:39:32 +08:00