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GCC 4.7's libstdc++ doesn't have std::map::emplace, but it does have std::unordered_map::emplace, and the use case here doesn't appear to need ordering. The container has been changed in a separate/precursor patch, and now this patch should hopefully build cleanly even with GCC 4.7. & then I realized the order of the container did matter, so extra handling of ordering was added in r231189. Original commit message: This makes LiveRange non-copyable, and LiveInterval is already non-movable (due to the explicit dtor), so now it's non-copyable and non-movable. Fix the one case where we were relying on the (deprecated in C++11) implicit copy ctor of LiveInterval (which happened to work because the ctor created an object with a null segmentSet, so double-deleting the null pointer was fine). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231192 91177308-0d34-0410-b5e6-96231b3b80d8
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