remove unused argument from LiveRanges::join()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190169 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 3f88236..e067add 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -415,8 +415,7 @@
 void LiveInterval::join(LiveInterval &Other,
                         const int *LHSValNoAssignments,
                         const int *RHSValNoAssignments,
-                        SmallVectorImpl<VNInfo *> &NewVNInfo,
-                        MachineRegisterInfo *MRI) {
+                        SmallVectorImpl<VNInfo *> &NewVNInfo) {
   verify();
 
   // Determine if any of our live range values are mapped.  This is uncommon, so
diff --git a/lib/CodeGen/RegisterCoalescer.cpp b/lib/CodeGen/RegisterCoalescer.cpp
index 7bfb54d..fefe33a 100644
--- a/lib/CodeGen/RegisterCoalescer.cpp
+++ b/lib/CodeGen/RegisterCoalescer.cpp
@@ -1999,8 +1999,7 @@
     LIS->shrinkToUses(&LIS->getInterval(ShrinkRegs.pop_back_val()));
 
   // Join RHS into LHS.
-  LHS.join(RHS, LHSVals.getAssignments(), RHSVals.getAssignments(), NewVNInfo,
-           MRI);
+  LHS.join(RHS, LHSVals.getAssignments(), RHSVals.getAssignments(), NewVNInfo);
 
   // Kill flags are going to be wrong if the live ranges were overlapping.
   // Eventually, we should simply clear all kill flags when computing live