From adb30d211b501a02610b91879b35572d2dfbaf04 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 20 Oct 2010 22:37:41 +0000
Subject: [PATCH] Memdep says that an instruction clobbers itself when it means
 there is no specific clobber instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116960 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/MemDepPrinter.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/Analysis/MemDepPrinter.cpp b/lib/Analysis/MemDepPrinter.cpp
index 841f4b6b4ad..597daff8db2 100644
--- a/lib/Analysis/MemDepPrinter.cpp
+++ b/lib/Analysis/MemDepPrinter.cpp
@@ -150,7 +150,10 @@ void MemDepPrinter::print(raw_ostream &OS, const Module *M) const {
         WriteAsOperand(OS, DepBB, /*PrintType=*/false, M);
       }
       OS << " from: ";
-      DepInst->print(OS);
+      if (DepInst == Inst)
+        OS << "<unspecified>";
+      else
+        DepInst->print(OS);
       OS << "\n";
     }