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2013-05-02TBAA: remove !tbaa from testing cases if not used.Manman Ren
This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180935 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Add support for reverse pointer induction variables. These are loops that ↵Nadav Rotem
contain pointers that count backwards. For example, this is the hot loop in BZIP: do { m = *--p; *p = ( ... ); } while (--n); git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173219 91177308-0d34-0410-b5e6-96231b3b80d8