[llvm] [AArch64][SVE] Allow factors other than 2/4 for load+deinterleave3+store patterns for codegen (PR #162475)

[Paul Walker via llvm-commits]

================
@@ -18223,7 +18223,7 @@ bool AArch64TargetLowering::lowerInterleaveIntrinsicToStore(
     Instruction *Store, Value *Mask,
     ArrayRef<Value *> InterleavedValues) const {
   unsigned Factor = InterleavedValues.size();
-  if (Factor != 2 && Factor != 4) {
+  if (Factor != 2 && Factor != 3 && Factor != 4) {
     LLVM_DEBUG(dbgs() << "Matching st2 and st4 patterns failed\n");
----------------
paulwalker-arm wrote:

```suggestion
    LLVM_DEBUG(dbgs() << "Matching st2, st3 and st4 patterns failed\n");
```

https://github.com/llvm/llvm-project/pull/162475