From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Fri, 9 Sep 2011 06:44:17 +0000 (+0000)
Subject: [PCH] When loading the decls linked to an identifier, also make them visible
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=84ef0b5f6bd307b1d7cf08cafd68cfcf5facf6e3;p=clang

[PCH] When loading the decls linked to an identifier, also make them visible
in the translation unit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139358 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index e574e25f5b..1f02d3cf24 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -4841,8 +4841,16 @@ ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II,
     return;
   }
 
+  ASTContext &Ctx = *getContext();
   for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) {
     NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I]));
+
+    // In C++, translation unit's visible decls map gets emitted in the AST
+    // file, but not on C; make the decl visible so it can be looked up.
+    if (!Ctx.getLangOptions().CPlusPlus)
+      SetExternalVisibleDeclsForName(Ctx.getTranslationUnitDecl(),
+                                     DeclarationName(II), D);
+
     if (SemaObj) {
       if (SemaObj->TUScope) {
         // Introduce this declaration into the translation-unit scope