[SCEV] Use auto and range for; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251755 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 441a5a1da6c8af22dc17cabc07c489a7fbe720a7..a24b154ab96522b52a2ff6e6690b2e92eba51f4f 100644 (file)
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -2153,18 +2153,16 @@ const SCEV *ScalarEvolution::getAddExpr(SmallVectorImpl<const SCEV *> &Ops,
       // re-generate the operands list. Group the operands by constant scale,
       // to avoid multiplying by the same constant scale multiple times.
       std::map<APInt, SmallVector<const SCEV *, 4>, APIntCompare> MulOpLists;
       // re-generate the operands list. Group the operands by constant scale,
       // to avoid multiplying by the same constant scale multiple times.
       std::map<APInt, SmallVector<const SCEV *, 4>, APIntCompare> MulOpLists;

-      for (SmallVectorImpl<const SCEV *>::const_iterator I = NewOps.begin(),
-           E = NewOps.end(); I != E; ++I)
-        MulOpLists[M.find(*I)->second].push_back(*I);
+      for (const SCEV *NewOp : NewOps)
+        MulOpLists[M.find(NewOp)->second].push_back(NewOp);

       // Re-generate the operands list.
       Ops.clear();
       if (AccumulatedConstant != 0)
         Ops.push_back(getConstant(AccumulatedConstant));
       // Re-generate the operands list.
       Ops.clear();
       if (AccumulatedConstant != 0)
         Ops.push_back(getConstant(AccumulatedConstant));

-      for (std::map<APInt, SmallVector<const SCEV *, 4>, APIntCompare>::iterator
-           I = MulOpLists.begin(), E = MulOpLists.end(); I != E; ++I)
-        if (I->first != 0)
-          Ops.push_back(getMulExpr(getConstant(I->first),
-                                   getAddExpr(I->second)));
+      for (auto &MulOp : MulOpLists)
+        if (MulOp.first != 0)
+          Ops.push_back(getMulExpr(getConstant(MulOp.first),
+                                   getAddExpr(MulOp.second)));

       if (Ops.empty())
         return getZero(Ty);
       if (Ops.size() == 1)
       if (Ops.empty())
         return getZero(Ty);
       if (Ops.size() == 1)


@@ -2305,8 +2303,7 @@ const SCEV *ScalarEvolution::getAddExpr(SmallVectorImpl<const SCEV *> &Ops,
                                                AddRec->op_end());
         for (; OtherIdx != Ops.size() && isa<SCEVAddRecExpr>(Ops[OtherIdx]);
              ++OtherIdx)
                                                AddRec->op_end());
         for (; OtherIdx != Ops.size() && isa<SCEVAddRecExpr>(Ops[OtherIdx]);
              ++OtherIdx)

-          if (const SCEVAddRecExpr *OtherAddRec =
-                dyn_cast<SCEVAddRecExpr>(Ops[OtherIdx]))
+          if (const auto *OtherAddRec = dyn_cast<SCEVAddRecExpr>(Ops[OtherIdx]))

             if (OtherAddRec->getLoop() == AddRecLoop) {
               for (unsigned i = 0, e = OtherAddRec->getNumOperands();
                    i != e; ++i) {
             if (OtherAddRec->getLoop() == AddRecLoop) {
               for (unsigned i = 0, e = OtherAddRec->getNumOperands();
                    i != e; ++i) {