[all-commits] [llvm/llvm-project] d59b4a: [analyzer][ctu] Reland "Avoid parsing invocation l...

[Balazs Benics via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d59b4acf80d59c461decd41400988febaf0af8ca
      https://github.com/llvm/llvm-project/commit/d59b4acf80d59c461decd41400988febaf0af8ca
  Author: Ella Ma <alansnape3058 at gmail.com>
  Date:   2021-05-25 (Tue, 25 May 2021)

  Changed paths:
    M clang/include/clang/CrossTU/CrossTranslationUnit.h
    M clang/lib/CrossTU/CrossTranslationUnit.cpp

  Log Message:
  -----------
  [analyzer][ctu] Reland "Avoid parsing invocation list again and again..

..during on-demand parsing of CTU"

During CTU, the *on-demand parsing* will read and parse the invocation
list to know how to compile the file being imported. However, it seems
that the invocation list will be parsed again if a previous parsing
has failed.
Then, parse again and fail again. This patch tries to overcome the
problem by storing the error code during the first parsing, and
re-create the stored error during the later parsings.

Reland without test.

Reviewed By: steakhal

Patch By: OikawaKirie!

Differential Revision: https://reviews.llvm.org/D101763