From d1406be551dedd4bfe7d221d43d8fd0787ce85e3 Mon Sep 17 00:00:00 2001
From: "Podchishchaeva, Mariya" <mariya.podchishchaeva@intel.com>
Date: Thu, 17 Oct 2024 08:11:45 -0700
Subject: [PATCH] Extend the comment

---
 clang/lib/AST/Decl.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index c642fcf8785151..8321cee0e0bc94 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -2620,7 +2620,9 @@ bool VarDecl::hasICEInitializer(const ASTContext &Context) const {
 }
 
 bool VarDecl::hasConstantInitialization() const {
-  // In C, all globals (and only globals) have constant initialization.
+  // In C, all globals and constexpr variables should have constant
+  // initialization. For constexpr variables in C check that initializer is a
+  // constant initializer because they can be used in constant expressions.
   if (hasGlobalStorage() && !getASTContext().getLangOpts().CPlusPlus &&
       !isConstexpr())
     return true;