From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 7 Feb 2008 08:29:53 +0000 (+0000)
Subject: In some cases, e.g. ADD32ri, no transformation is made. Guide against it.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=15246738f2db3f63a20c1f2b9b19b08e21acffd9;p=oota-llvm.git

In some cases, e.g. ADD32ri, no transformation is made. Guide against it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46849 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 1253631297e..18c5d2f8411 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -1011,6 +1011,8 @@ X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
   }
   }
 
+  if (!NewMI) return 0;
+
   NewMI->copyKillDeadInfo(MI);
   LV.instructionChanged(MI, NewMI);  // Update live variables
   MFI->insert(MBBI, NewMI);          // Insert the new inst