[PATCH] D27855: try to extend nonnull-ness of arguments from a callsite back to its parent function

[Sanjay Patel via Phabricator via llvm-commits]

spatel added inline comments.


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Comment at: lib/Transforms/IPO/FunctionAttrs.cpp:586-587
     // For more details, see GlobalValue::mayBeDerefined.
     if (!F->hasExactDefinition())
       continue;
 
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Side note for reference: this gets in the way of any hoped-for change with the dyn_cast example. Those functions (there are ~25 functions to inline underneath one call to dyn_cast) are marked "linkonce_odr", so we don't even consider them with this patch.


https://reviews.llvm.org/D27855