[llvm-branch-commits] [llvm] [CodeGen] LiveRegMatrix: Use allocator through a unique_ptr (PR #120556)

[Mircea Trofin via llvm-branch-commits]

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@@ -59,15 +59,11 @@ class LiveRegMatrix {
   unsigned RegMaskVirtReg = 0;
   BitVector RegMaskUsable;
 
-  LiveRegMatrix() = default;
+  LiveRegMatrix() : LIUAlloc(new LiveIntervalUnion::Allocator()) {};
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mtrofin wrote:

nit: could also do `LIUAlloc(std::make_unique<LiveIntervalUnion::Allocator>)` up to you.

https://github.com/llvm/llvm-project/pull/120556