1 files changed, 23 insertions, 0 deletions
diff --git a/clang/lib/Parse/ParseInit.cpp b/clang/lib/Parse/ParseInit.cpp
index a3be374..0e86c4c 100644
--- a/clang/lib/Parse/ParseInit.cpp
+++ b/clang/lib/Parse/ParseInit.cpp
@@ -581,3 +581,26 @@ bool Parser::ParseMicrosoftIfExistsBraceInitializer(ExprVector &InitExprs,
 
   return !trailingComma;
 }
+
+ExprResult Parser::ParseInitializer(Decl *DeclForInitializer) {
+  // Set DeclForInitializer for file-scope variables.
+  // For constexpr references, set it to suppress runtime warnings.
+  // For non-constexpr references, don't set it to avoid evaluation issues
+  // with self-referencing initializers. Local variables (including local
+  // constexpr) should emit runtime warnings.
+  if (DeclForInitializer && !Actions.ExprEvalContexts.empty()) {
+    if (auto *VD = dyn_cast<VarDecl>(DeclForInitializer);
+        VD && VD->isFileVarDecl() &&
+        (!VD->getType()->isReferenceType() || VD->isConstexpr()))
+      Actions.ExprEvalContexts.back().DeclForInitializer = VD;
+  }
+
+  ExprResult init;
+  if (Tok.isNot(tok::l_brace)) {
+    init = ParseAssignmentExpression();
+  } else {
+    init = ParseBraceInitializer();
+  }
+
+  return init;
+}