[polly] Fix "no member named 'getIndexExpressionsFromGEP'"

As of 741fabc222f226d34d806056b804244b012853b, polly builders are
failing from this error. The signiature is slightly different and
accepts a ScalarEvolution reference instead. This should fix the polly
builders.

polly/lib/Analysis/ScopBuilder.cpp

@@ -30,6 +30,7 @@
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/AssumptionCache.h"
+#include "llvm/Analysis/Delinearization.h"
 #include "llvm/Analysis/Loads.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
@@ -1658,7 +1659,7 @@ bool ScopBuilder::buildAccessMultiDimFixed(MemAccInst Inst, ScopStmt *Stmt) {
 
   SmallVector<const SCEV *, 4> Subscripts;
   SmallVector<int, 4> Sizes;
-  SE.getIndexExpressionsFromGEP(GEP, Subscripts, Sizes);
+  getIndexExpressionsFromGEP(SE, GEP, Subscripts, Sizes);
   auto *BasePtr = GEP->getOperand(0);
 
   if (auto *BasePtrCast = dyn_cast<BitCastInst>(BasePtr))