[PATCH] D138958: [clang] Better UX for Clang’s unwind-affecting attributes

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

I'm not trying to argue what the `pure`/`const` attribute in C/C++ is supposed to mean.  I agree with your interpretation of the gcc documentation/implementation.  I'm saying that there's a mismatch between the gcc `pure`/`const` and the LLVM IR `memory(read)`/`memory(none)`, and therefore you can't unconditionally lower `const` to `memory(none)`.


Repository:
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  https://reviews.llvm.org/D138958/new/

https://reviews.llvm.org/D138958