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The current code is only able to return the right unit if the passed offset is the exact offset of a section. Generalize the search function by comparing againt the offset of the next unit instead and by switching the search algorithm to upper_bound. This way, the unit returned is the first unit with a getNextUnitOffset() strictly greater than the searched offset, which is exactly what we want. Note that there is no need for testing the range of the resulting unit as the offsets of a DWARFUnitSection are in a single contiguous range from 0 inclusive to lastUnit->getNextUnitOffset() exclusive. Reviewers: dblaikie samsonov Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5262 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218040 91177308-0d34-0410-b5e6-96231b3b80d8