[clang] [clang] Implement a bitwise_copyable builtin type trait. (PR #86512)

[Haojian Wu via cfe-commits]

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@@ -1120,6 +1120,14 @@ class QualType {
   /// Return true if this is a trivially copyable type (C++0x [basic.types]p9)
   bool isTriviallyCopyableType(const ASTContext &Context) const;
 
+  /// Return true if the type is safe to bitwise copy by memcpy.
+  ///
+  /// This is an extension in clang: bitwise clonable types act as trivially
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hokein wrote:

Done, updated the documentation accordingly, please take a second look.

https://github.com/llvm/llvm-project/pull/86512