On 5/23/20 7:36 AM, Marc Nieper-Wißkirchen wrote: > The verify also contains a runtime check `assume', which uses > __builtin_unreachable if available to help the compiler in optimizing > modes.
I wouldn't call 'assume (X)' a "runtime check". It's more an anti-runtime-check. 'assume (X)' is a directive from the programmer to the compiler that X is true so that the compiler needn't generate code to test whether X is true. This is why 'assume' is in verify.h: it's related to static checking (in this case, static checking done by the programmer), not dynamic checking. Perhaps I should add a comment to this effect....
