[llvm] Provide access to raw bits in PackedVector. NFC. (PR #98944)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-adt

Author: Stanislav Mekhanoshin (rampitec)

<details>
<summary>Changes</summary>

Needed for future patch to access vector as an integer mask.

---
Full diff: https://github.com/llvm/llvm-project/pull/98944.diff


1 Files Affected:

- (modified) llvm/include/llvm/ADT/PackedVector.h (+2) 


``````````diff
diff --git a/llvm/include/llvm/ADT/PackedVector.h b/llvm/include/llvm/ADT/PackedVector.h
index b448685ab6163..e837e140c03fc 100644
--- a/llvm/include/llvm/ADT/PackedVector.h
+++ b/llvm/include/llvm/ADT/PackedVector.h
@@ -141,6 +141,8 @@ class PackedVector : public PackedVectorBase<T, BitNum, BitVectorTy,
     Bits |= RHS.Bits;
     return *this;
   }
+
+  operator BitVectorTy() const { return Bits; }
 };
 
 // Leave BitNum=0 undefined.

``````````

</details>


https://github.com/llvm/llvm-project/pull/98944