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Commit 8b55b736 authored by Andrew Trick's avatar Andrew Trick
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Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap 

properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.

llvm-svn: 127590
parent 328b223b
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