Stop the iterator in ValueLiveAt from potentially running off the end of the interval.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85599 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/CodeGen/SimpleRegisterCoalescing.h b/lib/CodeGen/SimpleRegisterCoalescing.h
index a381ae78af..7f282a43dd 100644
--- a/lib/CodeGen/SimpleRegisterCoalescing.h
+++ b/lib/CodeGen/SimpleRegisterCoalescing.h
@@ -204,7 +204,8 @@ namespace llvm {
     /// ValueLiveAt - Return true if the LiveRange pointed to by the given
     /// iterator, or any subsequent range with the same value number,
     /// is live at the given point.
-    bool ValueLiveAt(LiveInterval::iterator LRItr, LiveIndex defPoint) const;
+    bool ValueLiveAt(LiveInterval::iterator LRItr, LiveInterval::iterator LREnd, 
+                     LiveIndex defPoint) const;                                  
 
     /// RangeIsDefinedByCopyFromReg - Return true if the specified live range of
     /// the specified live interval is defined by a copy from the specified