[llvm] [VPlan] Delay adding canonical IV increment and exit branches. (PR #82270)

[via llvm-commits]

================
@@ -1572,3 +1529,71 @@ void VPlanTransforms::dropPoisonGeneratingRecipes(
     }
   }
 }
+
+void VPlanTransforms::finalizePlan(VPlan &Plan, bool HasNUW,
----------------
ayalz wrote:

How about something like `lowerCanonicalIV()`, or `materializeCanonicalIVIncrement()`, rather than `finalizePlan()`?

https://github.com/llvm/llvm-project/pull/82270