X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FLiveRangeEdit.h;h=def7b00ce761e8b691435514f00c6d148568ba28;hb=3450f800aa65c91f0496816ba6061a422a74c1fe;hp=1831a07a8f3ae3b1e0e829cba9b375d9f3e6a05b;hpb=c696c8bd35a8ab293879e821142dd9136201f16e;p=oota-llvm.git

diff --git a/include/llvm/CodeGen/LiveRangeEdit.h b/include/llvm/CodeGen/LiveRangeEdit.h
index 1831a07a8f3..def7b00ce76 100644
--- a/include/llvm/CodeGen/LiveRangeEdit.h
+++ b/include/llvm/CodeGen/LiveRangeEdit.h
@@ -55,7 +55,7 @@ public:
   };
 
 private:
-  LiveInterval &Parent;
+  LiveInterval *Parent;
   SmallVectorImpl<LiveInterval*> &NewRegs;
   MachineRegisterInfo &MRI;
   LiveIntervals &LIS;
@@ -99,7 +99,7 @@ public:
   /// @param vrm Map of virtual registers to physical registers for this
   ///            function.  If NULL, no virtual register map updates will
   ///            be done.  This could be the case if called before Regalloc.
-  LiveRangeEdit(LiveInterval &parent,
+  LiveRangeEdit(LiveInterval *parent,
                 SmallVectorImpl<LiveInterval*> &newRegs,
                 MachineFunction &MF,
                 LiveIntervals &lis,
@@ -112,8 +112,11 @@ public:
       FirstNew(newRegs.size()),
       ScannedRemattable(false) {}
 
-  LiveInterval &getParent() const { return Parent; }
-  unsigned getReg() const { return Parent.reg; }
+  LiveInterval &getParent() const {
+   assert(Parent && "No parent LiveInterval");
+   return *Parent;
+  }
+  unsigned getReg() const { return getParent().reg; }
 
   /// Iterator for accessing the new registers added by this edit.
   typedef SmallVectorImpl<LiveInterval*>::const_iterator iterator;