[PATCH] D68114: Fix for expanding __pragmas in macro arguments

[Amy Huang via Phabricator via cfe-commits]

akhuang created this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Avoid parsing __pragma into an annotation token when macro arguments are pre-expanded.
This is what clang currently does when parsing _Pragmas.

Fixes https://bugs.llvm.org/show_bug.cgi?id=41128, where clang crashed
when trying to get the length of an annotation token.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D68114

Files:
  clang/lib/Lex/Pragma.cpp
  clang/test/Preprocessor/pragma_microsoft.c

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