From e20ab4a03c662a573b6be98c6da4be3031a874ba Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Sat, 6 Mar 2010 20:26:48 +0000
Subject: [PATCH] Add verification of union types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97889 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/Verifier.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/VMCore/Verifier.cpp b/lib/VMCore/Verifier.cpp
index 35625a59396..721e96a0f55 100644
--- a/lib/VMCore/Verifier.cpp
+++ b/lib/VMCore/Verifier.cpp
@@ -1525,6 +1525,15 @@ void Verifier::VerifyType(const Type *Ty) {
       VerifyType(ElTy);
     }
   } break;
+  case Type::UnionTyID: {
+    const UnionType *UTy = cast<UnionType>(Ty);
+    for (unsigned i = 0, e = UTy->getNumElements(); i != e; ++i) {
+      const Type *ElTy = UTy->getElementType(i);
+      Assert2(UnionType::isValidElementType(ElTy),
+              "Union type with invalid element type", ElTy, UTy);
+      VerifyType(ElTy);
+    }
+  } break;
   case Type::ArrayTyID: {
     const ArrayType *ATy = cast<ArrayType>(Ty);
     Assert1(ArrayType::isValidElementType(ATy->getElementType()),
-- 
2.34.1