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Summary: The MergeValues() function would try to merge two entries if they shared the same beginning label. Having the same beginning label means that the former entry's range would be empty; however, after D55919 we no longer create entries for empty ranges, so we can no longer land in a situation where that check in MergeValues would succeed. Instead, the "merging" is done by keeping the live values from the preceding empty ranges in OpenRanges, and adding them to the first non-empty range. Reviewers: aprantl, dblaikie, loladiro Reviewed By: aprantl Subscribers: llvm-commits Tags: #debug-info, #llvm Differential Revision: https://reviews.llvm.org/D59301 llvm-svn: 357974
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