From 94c484d3b89662a9f61711f523f6b5cb9b6c392a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 16 Mar 2010 21:21:35 +0000
Subject: [PATCH] add asmprinter suport for unions, fixing Feature/unions.ll to
 actually be doing something useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98677 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/AsmWriter.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index fd742413abf..0eb9f020dc9 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -1027,6 +1027,15 @@ static void WriteConstantInt(raw_ostream &Out, const Constant *CV,
     return;
   }
 
+  if (const ConstantUnion *CU = dyn_cast<ConstantUnion>(CV)) {
+    Out << "{ ";
+    TypePrinter.print(CU->getOperand(0)->getType(), Out);
+    Out << ' ';
+    WriteAsOperandInternal(Out, CU->getOperand(0), &TypePrinter, Machine);
+    Out << " }";
+    return;
+  }
+  
   if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
     const Type *ETy = CP->getType()->getElementType();
     assert(CP->getNumOperands() > 0 &&