Fix another bug in r71252. This code supports GetElementPtr
constant exprs as well as instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71262 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 4ddde5d..90c4f57 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -1866,7 +1866,7 @@
 /// createNodeForGEP - Expand GEP instructions into add and multiply
 /// operations. This allows them to be analyzed by regular SCEV code.
 ///
-SCEVHandle ScalarEvolution::createNodeForGEP(GetElementPtrInst *GEP) {
+SCEVHandle ScalarEvolution::createNodeForGEP(User *GEP) {
 
   const Type *IntPtrTy = TD->getIntPtrType();
   Value *Base = GEP->getOperand(0);
@@ -2113,7 +2113,7 @@
 
   case Instruction::GetElementPtr:
     if (!TD) break; // Without TD we can't analyze pointers.
-    return createNodeForGEP(cast<GetElementPtrInst>(U));
+    return createNodeForGEP(U);
 
   case Instruction::PHI:
     return createNodeForPHI(cast<PHINode>(U));