[PATCH] D100564: [TTI] NFC: Change getScalingFactorCost to return InstructionCost

Sander de Smalen via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Apr 22 05:49:34 PDT 2021


sdesmalen marked an inline comment as done.
sdesmalen added inline comments.


================
Comment at: llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1782-1783
 
     assert(ScaleCostMinOffset >= 0 && ScaleCostMaxOffset >= 0 &&
+           ScaleCostMinOffset.isValid() && ScaleCostMaxOffset.isValid() &&
            "Legal addressing mode has an illegal cost!");
----------------
paulwalker-arm wrote:
> I can see that `TargetTransformInfo::getScalingFactorCost` already performs the `>=0` test and so I'm wondering if at this point you only need to assert the costs are valid?
You're right, those checks seem redundant. I'll remove them before submitting the patch.


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