[PATCH] D104984: [clang] add C++ feature test macro for P2266 simpler implicit move

[Matheus Izvekov via Phabricator via cfe-commits]

mizvekov created this revision.
mizvekov requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

The feature was implemented in D99005 <https://reviews.llvm.org/D99005>, but we forgot to add the test
macro.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D104984

Files:
  clang/lib/Frontend/InitPreprocessor.cpp
  clang/test/Lexer/cxx-features.cpp


Index: clang/test/Lexer/cxx-features.cpp
===================================================================
--- clang/test/Lexer/cxx-features.cpp
+++ clang/test/Lexer/cxx-features.cpp
@@ -31,6 +31,10 @@
 
 // --- C++2b features ---
 
+#if check(implicit_move, 0, 0, 0, 0, 0, 202011)
+#error "wrong value for __cpp_implicit_move"
+#endif
+
 #if check(size_t_suffix, 0, 0, 0, 0, 0, 202011)
 #error "wrong value for __cpp_size_t_suffix"
 #endif
Index: clang/lib/Frontend/InitPreprocessor.cpp
===================================================================
--- clang/lib/Frontend/InitPreprocessor.cpp
+++ clang/lib/Frontend/InitPreprocessor.cpp
@@ -597,8 +597,10 @@
     Builder.defineMacro("__cpp_using_enum", "201907L");
   }
   // C++2b features.
-  if (LangOpts.CPlusPlus2b)
+  if (LangOpts.CPlusPlus2b) {
+    Builder.defineMacro("__cpp_implicit_move", "202011L");
     Builder.defineMacro("__cpp_size_t_suffix", "202011L");
+  }
   if (LangOpts.Char8)
     Builder.defineMacro("__cpp_char8_t", "201811L");
   Builder.defineMacro("__cpp_impl_destroying_delete", "201806L");


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