BigEndian check update

Author: ParkHanbum

llvm/lib/Transforms/Vectorize/VectorCombine.cpp

@@ -251,7 +251,7 @@ bool VectorCombine::vectorizeLoadInsert(Instruction &I) {
     // appropriate element size for both.
     uint64_t ScalarSizeInBytes = ScalarSize / 8;
     if (auto UnalignedBytes = Offset.urem(ScalarSizeInBytes);
-        UnalignedBytes != 0) {
+        UnalignedBytes != 0 && !DL->isBigEndian()) {
       uint64_t OldScalarSizeInBytes = ScalarSizeInBytes;
       // Assign the greatest common divisor between UnalignedBytes and Offset to
       // ScalarSizeInBytes