From 2bbff6d17350edae5d9ae48b3f0735386d69cccf Mon Sep 17 00:00:00 2001
From: Jim Laskey <jlaskey@mac.com>
Date: Thu, 30 Nov 2006 18:29:23 +0000
Subject: [PATCH] better check for version

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32045 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/MachineDebugInfo.cpp | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/MachineDebugInfo.cpp b/lib/CodeGen/MachineDebugInfo.cpp
index f6de1046fae..48db413d536 100644
--- a/lib/CodeGen/MachineDebugInfo.cpp
+++ b/lib/CodeGen/MachineDebugInfo.cpp
@@ -1390,11 +1390,23 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
     return false;
   }
 
-  // Get the Tag
+  // Get the Tag.
   unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
   
   // Check for user defined descriptors.
-  if (Tag == DW_TAG_invalid) return true;
+  if (Tag == DW_TAG_invalid) {
+    ValiditySlot = Valid;
+    return true;
+  }
+  
+  // Get the Version.
+  unsigned Version = DebugInfoDesc::VersionFromGlobal(GV);
+  
+  // Check for version mismatch.
+  if (Version != LLVMDebugVersion) {
+    ValiditySlot = Invalid;
+    return false;
+  }
 
   // Construct an empty DebugInfoDesc.
   DebugInfoDesc *DD = DebugInfoDesc::DescFactory(Tag);