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Commit cebfccee authored by Arnold Schwaighofer's avatar Arnold Schwaighofer
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SCEVRewriter: Optionally interpret constants in value map as SCEVConstant 

An upcoming loop vectorizer commit will want to replace a SCEVUnknown(Value*)
by a SCEVConstant. This commit modifies the SCEVParameterRewriter to support
this. The SCEVParameterRewriter constructor can optionally specify to follow
this behavior.

llvm-svn: 198949
parent 4e62c0b2
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