[PATCH] D13687: [SCEV] Opportunistically interpret unsigned constraints as signed
Sanjoy Das via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 12 21:30:05 PDT 2015
sanjoy created this revision.
sanjoy added reviewers: atrick, hfinkel, reames, nlewycky.
sanjoy added a subscriber: llvm-commits.
An unsigned comparision is equivalent to is corresponding signed version
if both the operands being compared are positive. Teach SCEV to use
this fact when profitable.
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