Handle binary or in constant expressions.

llvm-svn: 46482

clang/CodeGen/CGExprConstant.cpp

@@ -236,6 +236,14 @@ public:
     return EmitLValue(E->getSubExpr());
   }
   
+  // Binary operators
+  llvm::Constant *VisitBinOr(const BinaryOperator *E) {
+    llvm::Constant *LHS = Visit(E->getLHS());
+    llvm::Constant *RHS = Visit(E->getRHS());
+    
+    return llvm::ConstantExpr::getOr(LHS, RHS);
+  }
+
   // Utility methods
   const llvm::Type *ConvertType(QualType T) {
     return CGM.getTypes().ConvertType(T);

clang/test/CodeGen/globalinit.c

@@ -36,8 +36,12 @@ void booltest2() {
 static int a = { 1 };
 static int b = { 1, 2 };
 
+// References to enums.
 enum {
 	EnumA, EnumB
 };
 
 int c[] = { EnumA, EnumB };
+
+// Binary operators
+int d[] = { EnumA | EnumB };