Use SmallVectorImpl::const_iterator instead of SmallVector to avoid specifying the vector size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185514 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index fab7522..587ea83 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2763,8 +2763,8 @@
         bool mayStore = MCID.mayStore();
 
         unsigned NumMemRefs = 0;
-        for (SmallVector<MachineMemOperand*, 2>::const_iterator I =
-             MatchedMemRefs.begin(), E = MatchedMemRefs.end(); I != E; ++I) {
+        for (SmallVectorImpl<MachineMemOperand *>::const_iterator I =
+               MatchedMemRefs.begin(), E = MatchedMemRefs.end(); I != E; ++I) {
           if ((*I)->isLoad()) {
             if (mayLoad)
               ++NumMemRefs;
@@ -2780,8 +2780,8 @@
           MF->allocateMemRefsArray(NumMemRefs);
 
         MachineSDNode::mmo_iterator MemRefsPos = MemRefs;
-        for (SmallVector<MachineMemOperand*, 2>::const_iterator I =
-             MatchedMemRefs.begin(), E = MatchedMemRefs.end(); I != E; ++I) {
+        for (SmallVectorImpl<MachineMemOperand *>::const_iterator I =
+               MatchedMemRefs.begin(), E = MatchedMemRefs.end(); I != E; ++I) {
           if ((*I)->isLoad()) {
             if (mayLoad)
               *MemRefsPos++ = *I;