[llvm-branch-commits] [llvm] [CodeGen] LiveIntervalUnions::Array Implement move constructor (PR #111357)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-regalloc

Author: Akshat Oke (Akshat-Oke)

<details>
<summary>Changes</summary>

Solves the double free error.

---
Full diff: https://github.com/llvm/llvm-project/pull/111357.diff


1 Files Affected:

- (modified) llvm/include/llvm/CodeGen/LiveIntervalUnion.h (+7) 


``````````diff
diff --git a/llvm/include/llvm/CodeGen/LiveIntervalUnion.h b/llvm/include/llvm/CodeGen/LiveIntervalUnion.h
index 81003455da4241..cc0f2a45bb182c 100644
--- a/llvm/include/llvm/CodeGen/LiveIntervalUnion.h
+++ b/llvm/include/llvm/CodeGen/LiveIntervalUnion.h
@@ -176,6 +176,13 @@ class LiveIntervalUnion {
     Array() = default;
     ~Array() { clear(); }
 
+    Array(Array &&Other) : Size(Other.Size), LIUs(Other.LIUs) {
+      Other.Size = 0;
+      Other.LIUs = nullptr;
+    }
+
+    Array(const Array &) = delete;
+
     // Initialize the array to have Size entries.
     // Reuse an existing allocation if the size matches.
     void init(LiveIntervalUnion::Allocator&, unsigned Size);

``````````

</details>


https://github.com/llvm/llvm-project/pull/111357