From 4ef8dd6e8736097bf9e3c387139c668565d89dca Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 1 Nov 2007 02:45:17 +0000
Subject: [PATCH] Implement test/Sema/init.c by treating functions as
 constants.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43599 91177308-0d34-0410-b5e6-96231b3b80d8
---
 AST/Expr.cpp     | 7 +++++--
 test/Sema/init.c | 6 ++++++
 2 files changed, 11 insertions(+), 2 deletions(-)
 create mode 100644 test/Sema/init.c

diff --git a/AST/Expr.cpp b/AST/Expr.cpp
index b21aad20ce..14ef48c7de 100644
--- a/AST/Expr.cpp
+++ b/AST/Expr.cpp
@@ -382,11 +382,14 @@ bool Expr::isConstantExpr(ASTContext &Ctx, SourceLocation *Loc) const {
     if (Loc) *Loc = getLocStart();
     return false;
   }
-  case DeclRefExprClass:
-    if (isa<EnumConstantDecl>(cast<DeclRefExpr>(this)->getDecl()))
+  case DeclRefExprClass: {
+    const Decl *D = cast<DeclRefExpr>(this)->getDecl();
+    // Accept address of function.
+    if (isa<EnumConstantDecl>(D) || isa<FunctionDecl>(D))
       return true;
     if (Loc) *Loc = getLocStart();
     return false;
+  }
   case UnaryOperatorClass: {
     const UnaryOperator *Exp = cast<UnaryOperator>(this);
     
diff --git a/test/Sema/init.c b/test/Sema/init.c
new file mode 100644
index 0000000000..71b1d63d61
--- /dev/null
+++ b/test/Sema/init.c
@@ -0,0 +1,6 @@
+// RUN: clang %s -verify -fsyntax-only
+
+typedef void (* fp)(void);
+void foo(void);
+fp a[1] = { foo };
+
-- 
2.40.0