[PATCH] D93838: [SCCP] Add Function Specialization pass

Chuanqi Xu via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri May 21 00:08:14 PDT 2021


ChuanqiXu added inline comments.


================
Comment at: llvm/lib/Transforms/Scalar/FunctionSpecialization.cpp:315-317
+    uint64_t Cost =
+        TTI.getUserCost(U, TargetTransformInfo::TCK_SizeAndLatency) ==
+        TargetTransformInfo::TCC_Free;
----------------
Should this be `!=` instead? Or I think we should use `TTI.getUserCost` for the initial value directly. Now if `getUserCost` returns non-zero, the value for Cost would become 0! It is too weird.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93838/new/

https://reviews.llvm.org/D93838



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