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0581f9f375
If this is a problem for anyone (shared_ptr is two pointers in size, whereas IntrusiveRefCntPtr is 1 - and the ref count control block that make_shared adds is probably larger than the one int in RefCountedBase) I'd prefer to address this by adding a lower-overhead version of shared_ptr (possibly refactoring IntrusiveRefCntPtr into such a thing) to avoid the intrusiveness - this allows memory ownership to remain orthogonal to types and at least to me, seems to make code easier to understand (since no implicit ownership acquisition can happen). This recommits 291006, reverted in r291007. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291016 91177308-0d34-0410-b5e6-96231b3b80d8
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