Be more obvious about what is being tested.

llvm-svn: 132982

llvm/lib/Transforms/Scalar/ScalarReplAggregates.cpp

@@ -300,7 +300,8 @@ AllocaInst *ConvertToScalarInfo::TryConvert(AllocaInst *AI) {
   // we just get a lot of insert/extracts.  If at least one vector is
   // involved, then we probably really do have a union of vector/array.
   const Type *NewTy;
-  if (VectorTy && ScalarKind != ImplicitVector) {
+  if (ScalarKind == Vector) {
+    assert(VectorTy && "Missing type for vector scalar.");
     DEBUG(dbgs() << "CONVERT TO VECTOR: " << *AI << "\n  TYPE = "
           << *VectorTy << '\n');
     NewTy = VectorTy;  // Use the vector type.