[PATCH] D77962: PR38490: Support reading values out of __uuidof(X) expressions during constant evaluation.

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith created this revision.
rsmith added reviewers: aeubanks, rnk.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

We try to avoid materializing a full _GUID APValue wherever possible;
instead, when accessing an individual field, we only extract the
corresponding portion of the UUID string and convert that.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D77962

Files:
  clang/include/clang/Basic/DiagnosticASTKinds.td
  clang/lib/AST/ExprConstant.cpp
  clang/test/CodeGenCXX/microsoft-uuidof.cpp
  clang/test/Parser/MicrosoftExtensions.cpp
  clang/test/SemaCXX/ms-uuid.cpp

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