[llvm] [LAA] Add initial support for non-power-of-2 store-load forwarding distance (PR #137873)

[Florian Hahn via llvm-commits]

================
@@ -1831,24 +1832,61 @@ bool MemoryDepChecker::couldPreventStoreLoadForward(uint64_t Distance,
       break;
     }
   }
+  // If target supports active vector length, then it supports non-power-2
----------------
fhahn wrote:

```suggestion
  // If target supports non-power-of-2 store-load forwarding distances,
```

Targets could also support non-power-of-2 vectors natively or via predication.

https://github.com/llvm/llvm-project/pull/137873