[PATCH] D125990: [LSR] Fix bug for optimizing unused IVs to final values

[Michael Kruse via Phabricator via llvm-commits]

Meinersbur added inline comments.


================
Comment at: llvm/lib/Transforms/Scalar/IndVarSimplify.cpp:113-114
+                   "only replace exit value when the cost is cheap"),
+        clEnumValN(UnusedIndVar, "unusedindvar",
+                   "only replace unused induction variables with cheap costs"),
+        clEnumValN(NoHardUse, "noharduse",
----------------
Could you update this to indicate that it is "unused in the loop"/it is only used to compute the loop LCSSA exit value?



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  https://reviews.llvm.org/D125990/new/

https://reviews.llvm.org/D125990