From db7a9e291ae6eb2fd8ff5890efb1ee46ab8b8724 Mon Sep 17 00:00:00 2001
From: Nuno Lopes <nunoplopes@sapo.pt>
Date: Thu, 15 Jan 2009 18:40:57 +0000
Subject: [PATCH] add comment to explain my previous commit, as asked by Chris

llvm-svn: 62272
---
 lib/VMCore/AsmWriter.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 8139e822ee6..bdc50b6c697 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -1671,6 +1671,8 @@ void AssemblyWriter::printInstruction(const Instruction &I) {
     } else {
       for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
         Operand = I.getOperand(i);
+        // note that Operand shouldn't be null, but the test helps make dump()
+        // more tolerant of malformed IR
         if (Operand && Operand->getType() != TheType) {
           PrintAllTypes = true;    // We have differing types!  Print them all!
           break;