When updating live range endpoints, make sure to preserve the early c…

…lobber bit. Fixs PR13719. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163107 91177308-0d34-0410-b5e6-96231b3b80d8
hylsd · Sep 3, 2012 · 7b23d08 · 7b23d08
1 parent 84451a1
commit 7b23d08
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -1173,7 +1173,7 @@ class LiveIntervals::HMEditor {
     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 @@ class LiveIntervals::HMEditor {
         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());
     }
   }