From 56354d48bb937cbb23736d24d9ca4d7a0fcc97e0 Mon Sep 17 00:00:00 2001
From: Kalle Raiskila <kalle.raiskila@nokia.com>
Date: Tue, 11 Oct 2011 12:55:18 +0000
Subject: [PATCH] Fix a iterator out of bounds error, that triggers rarely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141665 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/CellSPU/SPUInstrInfo.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Target/CellSPU/SPUInstrInfo.cpp b/lib/Target/CellSPU/SPUInstrInfo.cpp
index 02cf9bfa735..007bc0e02c7 100644
--- a/lib/Target/CellSPU/SPUInstrInfo.cpp
+++ b/lib/Target/CellSPU/SPUInstrInfo.cpp
@@ -290,6 +290,8 @@ static void removeHBR( MachineBasicBlock &MBB) {
     if (I->getOpcode() == SPU::HBRA ||
         I->getOpcode() == SPU::HBR_LABEL){
       I=MBB.erase(I);
+      if (I == MBB.end())
+        break;
     }
   }
 }