[llvm] r254529 - Fix accidental off by one change

[Fiona Glaser via llvm-commits]

Author: escha
Date: Wed Dec  2 12:46:23 2015
New Revision: 254529

URL: http://llvm.org/viewvc/llvm-project?rev=254529&view=rev
Log:
Fix accidental off by one change

Didn't break any tests, but did unnecessary extra work.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp?rev=254529&r1=254528&r2=254529&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp Wed Dec  2 12:46:23 2015
@@ -1244,7 +1244,7 @@ static void CheckForLiveRegDefMasked(SUn
                                      SmallSet<unsigned, 4> &RegAdded,
                                      SmallVectorImpl<unsigned> &LRegs) {
   // Look at all live registers. Skip Reg0 and the special CallResource.
-  for (unsigned i = 1, e = LiveRegDefs.size(); i != e; ++i) {
+  for (unsigned i = 1, e = LiveRegDefs.size()-1; i != e; ++i) {
     if (!LiveRegDefs[i]) continue;
     if (LiveRegDefs[i] == SU) continue;
     if (!MachineOperand::clobbersPhysReg(RegMask, i)) continue;