PR for llvm/llvm-project#54130 #112
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InstrRefBasedLDV allocates some big tables of ValueIDNum, to store live-in and live-out block values in, that then get passed around as pointers everywhere. This patch wraps the allocation in a std::unique_ptr, names some types based on unique_ptr, and passes references to those around instead. There's no functional change, but it makes it clearer to the reader that references to these tables are borrowed rather than owned, and we get some extra validity assertions too. Differential Revision: https://reviews.llvm.org/D118774 (cherry picked from commit ab49dce)
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resolves llvm#54130