Remove more non-DebugLoc getNode variants.  Use
getCALLSEQ_{END,START} to permit passing no DebugLoc
there.  UNDEF doesn't logically have DebugLoc; add
getUNDEF to encapsulate this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63978 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 307d464..93bf6ae 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -581,8 +581,7 @@
   }
   if (CallOpc == ARMISD::CALL_NOLINK && !Subtarget->isThumb()) {
     // implicit def LR - LR mustn't be allocated as GRP:$dst of CALL_NOLINK
-    Chain = DAG.getCopyToReg(Chain, dl, ARM::LR,
-                             DAG.getNode(ISD::UNDEF, MVT::i32), InFlag);
+    Chain = DAG.getCopyToReg(Chain, dl, ARM::LR, DAG.getUNDEF(MVT::i32),InFlag);
     InFlag = Chain.getValue(1);
   }