[PATCH] D115602: [X86] Memset is lowered to rep stos if MinSize is present

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


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Comment at: llvm/include/llvm/CodeGen/SelectionDAGTargetInfo.h:80-92
   /// Emit target-specific code that performs a memset.
   /// This can be used by targets to provide code sequences for cases
   /// that don't fit the target's parameters for simple stores and can be more
   /// efficient than using a library call. This function can return a null
   /// SDValue if the target declines to use custom code and a different
   /// lowering strategy should be used.
   virtual SDValue EmitTargetCodeForMemset(SelectionDAG &DAG, const SDLoc &dl,
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Why do you need `shouldEmitTargetCodeForMemset()` if there already is `EmitTargetCodeForMemset`?


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  https://reviews.llvm.org/D115602/new/

https://reviews.llvm.org/D115602