[all-commits] [llvm/llvm-project] 17daa2: [Clang][CWG1815] Support lifetime extension of tem...

[yronglin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 17daa204feadf9c28fc13b7daa69c3cbe865b238
      https://github.com/llvm/llvm-project/commit/17daa204feadf9c28fc13b7daa69c3cbe865b238
  Author: yronglin <yronglin777 at gmail.com>
  Date:   2024-05-13 (Mon, 13 May 2024)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/Sema/SemaExpr.cpp
    M clang/lib/Sema/SemaInit.cpp
    M clang/test/AST/ast-dump-default-init-json.cpp
    M clang/test/AST/ast-dump-default-init.cpp
    M clang/test/Analysis/lifetime-extended-regions.cpp
    M clang/test/CXX/drs/cwg16xx.cpp
    M clang/test/CXX/drs/cwg18xx.cpp
    M clang/test/CXX/special/class.temporary/p6.cpp
    M clang/test/SemaCXX/constexpr-default-arg.cpp
    M clang/test/SemaCXX/eval-crashes.cpp
    M clang/www/cxx_dr_status.html

  Log Message:
  -----------
  [Clang][CWG1815] Support lifetime extension of temporary created by aggregate initialization using a default member initializer (#87933)

This PR complete [DR1815](https://wg21.link/CWG1815) under the guidance
of `FIXME` comments. And reuse `CXXDefaultInitExpr` rewrite machinery to
clone the initializer expression on each use that would lifetime extend
its temporaries.

---------

Signed-off-by: yronglin <yronglin777 at gmail.com>



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