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George Burgess IV
91f4bc63a8
There are places where we need to merge multiple LocationSizes of different sizes into one, and get a sensible result. There are other places where we want to optimize aggressively based on the value of a LocationSizes (e.g. how can a store of four bytes be to an area of storage that's only two bytes large?) This patch makes LocationSize hold an 'imprecise' bit to note whether the LocationSize can be treated as an upper-bound and lower-bound for the size of a location, or just an upper-bound. This concludes the series of patches leading up to this. The most recent of which is r344108. Fixes PR36228. Differential Revision: https://reviews.llvm.org/D44748 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@344114 91177308-0d34-0410-b5e6-96231b3b80d8
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