Chris Lattner 945d08d76f Generalize instcombine's isSafeToLoadUnconditionally() function ...

to ignore readonly calls, and factor it out of instcombine so
that it can be used by other passes.  Patch by Frits van Bommel!

llvm-svn: 73506

2009-06-16 17:23:12 +00:00

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