Chris Lattner 2539e33893 More than just loads can read from memory: readonly calls like strlen ...

also need to be checked for memory modifying instructions before we
can sink them.  THis fixes the second half of PR2297.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50860 91177308-0d34-0410-b5e6-96231b3b80d8

2008-05-08 17:37:37 +00:00

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