[objc-arc] Track if we encountered an additive overflow while computing {TopDown,BottomUp}PathCounts and do nothing if it occurred.

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I fixed the aforementioned problems that came up on some of the linux boxes.
Major thanks to Nick Lewycky for his help debugging!

rdar://14590914

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188122 91177308-0d34-0410-b5e6-96231b3b80d8

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Michael Gottesman

2013-08-09 23:22:27 +00:00

parent 835738ce54

commit 3ed7576a3b

2 changed files with 1116 additions and 11 deletions

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test/Transforms/ObjCARC/path-overflow.ll

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