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-rw-r--r--clang/lib/Serialization/ASTWriter.cpp13
1 files changed, 11 insertions, 2 deletions
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index e99beb360d1..073ed674741 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -3107,11 +3107,20 @@ static NamedDecl *getDeclForLocalLookup(const LangOptions &LangOpts,
if (Decl *Redecl = D->getPreviousDecl()) {
// For Redeclarable decls, a prior declaration might be local.
for (; Redecl; Redecl = Redecl->getPreviousDecl()) {
- if (!Redecl->isFromASTFile())
+ // If we find a local decl, we're done.
+ if (!Redecl->isFromASTFile()) {
+ // Exception: in very rare cases (for injected-class-names), not all
+ // redeclarations are in the same semantic context. Skip ones in a
+ // different context. They don't go in this lookup table at all.
+ if (!Redecl->getDeclContext()->getRedeclContext()->Equals(
+ D->getDeclContext()->getRedeclContext()))
+ continue;
return cast<NamedDecl>(Redecl);
+ }
+
// If we find a decl from a (chained-)PCH stop since we won't find a
// local one.
- if (D->getOwningModuleID() == 0)
+ if (Redecl->getOwningModuleID() == 0)
break;
}
} else if (Decl *First = D->getCanonicalDecl()) {
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