Remove references to INSERT_SUBREG after de-SSA

[oota-llvm.git] / lib / CodeGen / LiveIntervalAnalysis.cpp

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index a626fc0393742d1c0196c1d67c041bcd5898a0c5..7c07c045dc38b6502122c91941cb622a58aaec27 100644 (file)
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -324,12 +324,6 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
     if (mi->isCopyLike() ||
         tii_->isMoveInstr(*mi, SrcReg, DstReg, SrcSubReg, DstSubReg)) {
       CopyMI = mi;
-
-      // Some of the REG_SEQUENCE lowering in TwoAddressInstrPass creates
-      // implicit defs without really knowing. It shows up as INSERT_SUBREG
-      // using an undefined register.
-      if (mi->isInsertSubreg())
-        mi->getOperand(1).setIsUndef();
     }
 
     VNInfo *ValNo = interval.getNextValue(defIndex, CopyMI, true,