[PATCH] D33774: [CodeGen] Make __attribute__(const) calls speculatable

[Michael Kruse via Phabricator via cfe-commits]

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`speculable` implies no undefined behavior (so it can even be speculatively executed with arguments when the source code would not, but its result eventually discarded), but `const` does not.


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  https://reviews.llvm.org/D33774/new/

https://reviews.llvm.org/D33774