[LLVMdev] SCEV bottom value
preston.briggs at gmail.com
Sun Oct 7 18:53:59 PDT 2012
I'd like a value, call it Bottom, such that
SE->getAddExpr(Bottom, X) => Bottom
SE->getMulExpr(Bottom, X,) => Bottom
isKnownPredicate(any, Bottom, X) => false
I can write code to make NULL work like I want, but it would be simpler if
something was already defined. I'm wondering about SCEV::Unknown. The
documentation suggests I could perhaps use it for a "bottom" value.
Think it would work?
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