JoinHashMap probe SIMD short-circuit optimization
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- Dominant language
- Rust
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Description
In `join_hash_map.rs` probe logic, both SIMD comparisons execute unconditionally:
```
let hash_matched = self.map[e].hashes.simd_eq(Simd::splat(hashes[i]));
let empty = self.map[e].hashes.simd_eq(Simd::splat(0)); // always runs
if let Some(pos) = (hash_matched | empty).first_set() { ... }
```
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