[PATCH] D70340: Add a key method to Sema to optimize debug info size

[Reid Kleckner via Phabricator via cfe-commits]

rnk updated this revision to Diff 229943.
rnk added a comment.

- comment


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70340/new/

https://reviews.llvm.org/D70340

Files:
  clang/include/clang/Sema/Sema.h
  clang/lib/Sema/Sema.cpp


Index: clang/lib/Sema/Sema.cpp
===================================================================
--- clang/lib/Sema/Sema.cpp
+++ clang/lib/Sema/Sema.cpp
@@ -189,6 +189,9 @@
   SemaPPCallbackHandler->set(*this);
 }
 
+// Anchor Sema's type info to this TU.
+void Sema::anchor() {}
+
 void Sema::addImplicitTypedef(StringRef Name, QualType T) {
   DeclarationName DN = &Context.Idents.get(Name);
   if (IdResolver.begin(DN) == IdResolver.end())
Index: clang/include/clang/Sema/Sema.h
===================================================================
--- clang/include/clang/Sema/Sema.h
+++ clang/include/clang/Sema/Sema.h
@@ -332,6 +332,9 @@
   Sema(const Sema &) = delete;
   void operator=(const Sema &) = delete;
 
+  /// A key method to reduce duplicate type info from Sema.
+  virtual void anchor();
+
   ///Source of additional semantic information.
   ExternalSemaSource *ExternalSource;
 


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