[TTI] crash as target TTI doen't take active

`opt --loop-data-prefetch --prefetch-distance=3000` for case, see detail https://gcc.godbolt.org/z/fo699r385

```cpp
assert(TTI->getCacheLineSize() && "Cache line size is not set for target");
```

```llvm
define void @calc() {
entry:
  ret void
}
```