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322ecd901b
This adds a way for us to version any UBSan handler by itself. The patch overrides D21289 for a better implementation (we're able to rev up a single handler). After this, then we can land a slight modification of D19667+D19668. We probably don't want to keep all the versions in compiler-rt (maybe we want to deprecate on one release and remove the old handler on the next one?), but with this patch we will loudly fail to compile when mixing incompatible handler calls, instead of silently compiling and then providing bad error messages. Reviewers: kcc, samsonov, rsmith, vsk Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D21695 llvm-svn: 289444