[PATCH] D100000: [clang] WIP: Implement simpler alternative to two-phase lookup for NRVO

[Matheus Izvekov via Phabricator via cfe-commits]

mizvekov updated this revision to Diff 355393.
mizvekov added a comment.

Patch now in workable state. Is Missing a few cleanups in the implementation.

Updates coroutine implicit move tests, as now they can finally match C++20 behavior and don't need P2266 <https://reviews.llvm.org/P2266> retroactively applied.

There are some test result changes.
These all match current GCC behaviour though: We are now broken in the same way as GCC is for these.
TBD what to do about these. The ambiguous overload resolution one might be easy to solve,
the other ones have to be studied more carefully.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100000/new/

https://reviews.llvm.org/D100000

Files:
  clang/include/clang/AST/Expr.h
  clang/include/clang/Basic/Specifiers.h
  clang/include/clang/Sema/Overload.h
  clang/include/clang/Sema/Sema.h
  clang/lib/AST/ASTContext.cpp
  clang/lib/AST/ExprClassification.cpp
  clang/lib/AST/JSONNodeDumper.cpp
  clang/lib/AST/TextNodeDumper.cpp
  clang/lib/CodeGen/CGDecl.cpp
  clang/lib/CodeGen/CGObjC.cpp
  clang/lib/Sema/Sema.cpp
  clang/lib/Sema/SemaCodeComplete.cpp
  clang/lib/Sema/SemaCoroutine.cpp
  clang/lib/Sema/SemaExprCXX.cpp
  clang/lib/Sema/SemaInit.cpp
  clang/lib/Sema/SemaOverload.cpp
  clang/lib/Sema/SemaStmt.cpp
  clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
  clang/test/CXX/class/class.init/class.copy.elision/p3.cpp
  clang/test/SemaCXX/conversion-function.cpp
  clang/test/SemaCXX/coroutine-rvo.cpp
  clang/test/SemaObjCXX/block-capture.mm

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