[llvm] [VPlan] Make CanIV part of region. (PR #144803)

[Florian Hahn via llvm-commits]

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@@ -638,7 +642,6 @@ SmallVector<VPRegisterUsage, 8> llvm::calculateRegisterUsageForPlan(
                << " registers\n";
       }
     });
-
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fhahn wrote:

added back, thanks

https://github.com/llvm/llvm-project/pull/144803