[PATCH] D75815: [InstCombine] Simplify calls with "returned" attribute

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

@glider Not quite sure what to do on that front. Inlining here is prevented due to an ABI mismatch, but lack of inlining does not imply that no other optimizations may take place. For example, SCCP will happily propagate a constant parameter across noinline function boundaries. I believe that the `returned` attribute is essentially in the same situation.

@jdoerfert Do you have any suggestions on how to handle this? It seems like something that can probably happen with the attributor as well, so maybe you already have a solution...


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https://reviews.llvm.org/D75815