X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FPreAllocSplitting.cpp;h=c49575bade65d21363aaf87d92ae8e7e068e43fe;hb=e622087e2064a5496ed9be5d9a8796349cf18b75;hp=52a403bd363c33f179f8c2393be72bc50b7e2161;hpb=7d696d80409aad20bb5da0fc4eccab941dd371d4;p=oota-llvm.git

diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index 52a403bd363..c49575bade6 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -1035,10 +1035,7 @@ bool PreAllocSplitting::SplitRegLiveInterval(LiveInterval *LI) {
     CurrLI->FindLiveRangeContaining(LIs->getUseIndex(BarrierIdx));
   VNInfo *ValNo = LR->valno;
 
-  if (ValNo->isUnused()) {
-    // Defined by a dead def? How can this be?
-    LLVM_UNREACHABLE("Val# is defined by a dead def?");
-  }
+  assert(!ValNo->isUnused() && "Val# is defined by a dead def?");
 
   MachineInstr *DefMI = ValNo->isDefAccurate()
     ? LIs->getInstructionFromIndex(ValNo->def) : NULL;