[clang] d6144c3 - [clang] add C++ feature test macro for P2266 simpler implicit move

[Matheus Izvekov via cfe-commits]

Author: Matheus Izvekov
Date: 2021-06-26T23:05:23+02:00
New Revision: d6144c30fb6ae7ac15c82d512f8da7572577c2d2

URL: https://github.com/llvm/llvm-project/commit/d6144c30fb6ae7ac15c82d512f8da7572577c2d2
DIFF: https://github.com/llvm/llvm-project/commit/d6144c30fb6ae7ac15c82d512f8da7572577c2d2.diff

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

The feature was implemented in D99005, but we forgot to add the test
macro.

Reviewed By: Quuxplusone

Differential Revision: https://reviews.llvm.org/D104984

Added: 
    

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

Removed: 
    


################################################################################
diff  --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index af1196f131925..bca0bb4ada672 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -597,8 +597,10 @@ static void InitializeCPlusPlusFeatureTestMacros(const LangOptions &LangOpts,
     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");

diff  --git a/clang/test/Lexer/cxx-features.cpp b/clang/test/Lexer/cxx-features.cpp
index 8f283dd8c8d9f..40c73f6019420 100644
--- a/clang/test/Lexer/cxx-features.cpp
+++ b/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