[PATCH] Have HasSideEffects() return false for __attribute__((const)) functions

[Michael Kuperstein]

Thanks, Richard!
Pure functions should not read volatile memory - this is explicitly called out in the gcc docs (" Interesting non-pure functions are functions with infinite loops or those depending on volatile memory"). Since both you and Hal seem certain it's fine, I'll update the patch and add that.


http://reviews.llvm.org/D8548

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