From f99b3f5ec2c38312b3ae38d1636f43bc8469a0d6 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 11 Jun 2007 03:52:52 +0000
Subject: [PATCH] Emit codegen of enum literals.

llvm-svn: 39646
---
 clang/CodeGen/CGExpr.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/clang/CodeGen/CGExpr.cpp b/clang/CodeGen/CGExpr.cpp
index 3e23c9ad162c..1b89e2be511f 100644
--- a/clang/CodeGen/CGExpr.cpp
+++ b/clang/CodeGen/CGExpr.cpp
@@ -338,7 +338,12 @@ RValue CodeGenFunction::EmitExpr(const Expr *E) {
     
   // l-values.
   case Expr::DeclRefExprClass:
-    // FIXME: EnumConstantDecl's are not lvalues.  This is wrong for them.
+    // DeclRef's of EnumConstantDecl's are simple rvalues.
+    if (const EnumConstantDecl *EC = 
+          dyn_cast<EnumConstantDecl>(cast<DeclRefExpr>(E)->getDecl()))
+      return RValue::get(ConstantInt::get(EC->getInitVal()));
+    
+    // FALLTHROUGH
   case Expr::ArraySubscriptExprClass:
     return EmitLoadOfLValue(E);
   case Expr::StringLiteralClass: