[PATCH] D124633: [SimplifyLibCalls] Pointers passed to libcalls must point to valid objects
    Eli Friedman via Phabricator via llvm-commits 
    llvm-commits at lists.llvm.org
       
    Thu Apr 28 13:16:30 PDT 2022
    
    
  
efriedma added a comment.
Last time we discussed this, we specifically avoided doing this, yes.  I'm still not convinced this is worth changing; the performance improvement is probably negligible.  Probably worth adding a comment briefly explaining the discussion, in any case.
We shouldn't be marking dereferenceable(1). The pointer could point to the end of an array.
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  https://reviews.llvm.org/D124633/new/
https://reviews.llvm.org/D124633
    
    
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