[llvm-commits] [llvm] r163107 - /llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp

[Lang Hames]

Author: lhames
Date: Mon Sep  3 01:31:45 2012
New Revision: 163107

URL: http://llvm.org/viewvc/llvm-project?rev=163107&view=rev
Log:
When updating live range endpoints, make sure to preserve the early clobber bit.

Fixs PR13719.


Modified:
    llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp

Modified: llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp?rev=163107&r1=163106&r2=163107&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp Mon Sep  3 01:31:45 2012
@@ -1173,7 +1173,7 @@
     SlotIndex LastUse = findLastUseBefore(LI->reg, OldIdx);
     if (LastUse != NewIdx)
       moveKillFlags(LI->reg, NewIdx, LastUse);
-    LR->end = LastUse.getRegSlot();
+    LR->end = LastUse.getRegSlot(LR->end.isEarlyClobber());
   }
 
   void moveEnteringDownFrom(SlotIndex OldIdx, IntRangePair& P) {
@@ -1187,7 +1187,7 @@
         assert(LR->end > OldIdx && "LiveRange does not cover original slot");
         moveKillFlags(LI->reg, LR->end, NewIdx);
       }
-      LR->end = NewIdx.getRegSlot();
+      LR->end = NewIdx.getRegSlot(LR->end.isEarlyClobber());
     }
   }