From: Andrew Trick <atrick@apple.com>
Date: Fri, 30 Sep 2011 19:50:40 +0000 (+0000)
Subject: Tracing or debug-printing a newly formed instruction should not crash.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=62e0590c0e5125b6c0fe5221e6fc552605c27202;p=oota-llvm.git

Tracing or debug-printing a newly formed instruction should not crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140874 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 59dea228d0c..18308f27cfe 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -386,7 +386,8 @@ static SlotTracker *createSlotTracker(const Value *V) {
     return new SlotTracker(FA->getParent());
 
   if (const Instruction *I = dyn_cast<Instruction>(V))
-    return new SlotTracker(I->getParent()->getParent());
+    if (I->getParent())
+      return new SlotTracker(I->getParent()->getParent());
 
   if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
     return new SlotTracker(BB->getParent());